Which Whole Number Is Equal To 24/8

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number  equal      number

15. What will be the whole number if you change

Ask: 15. What will be the whole number if you change 15/4 to mixed a number?
A.1 B.2 C.3 D.4
16.Which of the following is equivalent to 18/7?
A.2 4/7 B.25/7 C.36/7 D.7/21
17. Which of the following freaction is equal to 3/4
A.6/8 B. 4/20 C . 3/12 D.4/16
18.which of the following is the lowest term of 24/3?
A.4/5 B.3/4 C.1/2 D.1/8
19.What is 18/42 reduced the lowest term?
A.1/7 B.3/4 C.1/6 D.3/7
20.how many thirds are there in 16/24 ?
A.1 B.2 C3. D.4
III.SOLVE THE PROBLEM:USE THE CONCEPT OF LCM IN THE PROBLEM.
21-25(show your solution)

the box of candies is shared equaly among 9,12,or 18 children, there are always 6 candies left. Find the smallest number of candies in the box?

Answer:

16. A

17. D

18. C

19. B

20. B

Which of the 1. Which of the following numbers is

Ask: Which of the 1. Which of the following numbers is divisible by 11?
1 point
5 038
6 038
7 038
8 038
2. Dennis is arranging 648 tiles fitted a bathroom. He wants to put the same number of tiles in each row. How many tiles can Dennis put in each row?
1 point
5
6
11
12
3. How many whole numbers between 1 to 100 are divisible by 10?
1 point
7
8
9
10
4. Which of these numbers is not a common factor of 24 and 36?
1 point
12
8
6
4
5. Which of the numbers below is divisible by both 3 and 6?
1 point
28
48
67
93
6. Which of the following is NOT divisible by 3, 6, and 9?
1 point
711
810
900
612
7. Which of the numbers below is divisible by both 5 and 10?
1 point
125, 615
15,375
98,420
74,785
8. There are 632 guavas in the jars in a pantry. If each jar contains the same number of guavas, how many jars would there be?
1 point
4
9
10
3
9. Which of these numbers are not divisible by 12:
1 point
216
180
144
100
10. Luis planted 900 onions equally in 30 rows. How many onions were planted in each row?
1 point
10
20
30
40 numbers is divisible by 11? 1 point 5 038 6 038 7 038 8 038

Step-by-step explanation:

Yan po Yung answer hope it’s help

16. A fraction whose numerator is greater than the denominator,a.

Ask:
16. A fraction whose numerator is greater than the denominator,
a. Mixed number
b.proper fraction
c. improper fraction
d. whole number
17. What type of fraction is 3/5? a. Mixed number
b. proper fraction
c. improper fraction
d. whole number
18. What type of fraction is 10/3?
a. Mixed mumber
b. proper fraction
c. improper fraction
d. whole number
19. What type of fraction is 8 5/99
a. Mixed number
b. proper fraction
c. improper fraction
d. whole number
20. What is another term for 15/7? a. 21/7 b. 1 2/7 c. 41/7 d.5 2/7
21. 3 2/2 is equal to_____?
?
a. 3
b. 1
c. 5
d. 6
22. 3 is equal to ______?
2
a. 9/2
b. 2/9
c. 2 1/1
d. 3 1/1
23. Which of these does NOT show an improper fraction?
a. 5/1
b. 6/1
c. 6/7
d. 8/5
24. Which of these does NOT show a proper fraction?
a. 1/8
b. 5/8
c. 5/5
d. 2/5

25. Which of these is NOT in MIXED form?
a. 46/7
b.2 1/4
c. 4/5
d. 3 2/5​

Answer:

16. C. improper fraction

17. B. proper fraction

18. C. improper fraction

19. A. mixed number

20. A. 2 1/7

21. 4

22. C. 2 1/1

23. C. 6/7

24. C. 5/5

25. C. 4/5

Step-by-step explanation:

Answer:

16.C
17.B
18.C
19.A
20.A
21.7?
22.C
23.C
24.C
25.A and C

Hope it helps

Correct me if I am wrong

12. Which of the following mixed number is equal to

Ask: 12. Which of the following mixed number is equal to the illustration below?
A. 2 416
B. 24
D.2 5/4
C. 2 1/3
13. Which is a set of similar fractions?
A. 3/7, 2/6, 1/5 B. 1/7, 2/8, 3/9
D. 2/15,3/15, 4/15
C. 12, 1/3, 1/4
14. Which is a set of dissimilar fractions?
A. 1/7, 5/7, 6/7 B. 2/5, 3/5, 4/5
C. 3/7, 416,6/4 D.5/8, 7/8, 3/8
15. Which equal to 4%
A. 14/4
B. 1974
C. 11/4
D. 6/4
16. Which fraction names the shaded part of the rectangle?
A. ½
B. 4
C.5/8
D. 6/4
17.if a whole number is divided Into 9 equal parts,what fraction represent the two parts?
A.2/9
B.3/4
C.1/4
D.2/3
18.in 4/9 +1/9=5/9,which is the sum?
A.1/9
B.3/9
C.4/9
D.5/9
19.what is the lowest term of 6/9?
A.1/9
B.2/9
C.1/3
D.2/3
20.what is the equivalent fraction of 6/60?
A.4/15
B.1/15
C.1/10
D.3/15​

Answer:

13. D.

14. C.

18. D.

19. D.

20. C.

C 1. Which of the following shows the commutative property

Ask: C 1. Which of the following shows the commutative property of addition?
A. 9 + 0 = 9
B. 18 x 65 = 65 x18 C. 6 + 25 25 + 6 D. 4(3 + 12) 4(3) + 4(12)
A 2. What is the additive inverse of a negative integer?
A. Zero
B. Same integer
C. Always positive D. Always negative
3. Which of the following is a TRUE statement?
A. 24 – 8 = 8 – 24 B. 4(24 + 6) = 4(6 + 24) C. 23-(5-6) = (23-5) – 6 D. 12(32 x 24) = 12(24 x 32)
4. Which of the following numbers is the multiplicative identity for whole numbers?
A. 3
B. 2
C. 1
D. 0
5. What is the equivalent expression when 4 x 32 is expressed in commutative property?
A. 32 4
B. 32 + 4
C. 32 x 1
D. 32 + 1
6. Which of the following statements shows the closure property of addition?
A. 2(3) = 3(2)
B. – 63 + 92 = 29 C. 67 x 1 = 67
D. 92 + 0 = 92
7. Which of the following is the equivalent expression of 4(10 – 7) when expressed in distributive property?
A. 7(10) – 4
B, 4(10) – 4(7) C. (4 – 10) (4 – 7) D. (4 + 10) (4 + 7)
8. What is the result when we multiply any number by zero?
A. 2
B.
C. 0
D. –
9 Which of the following illustrates the associative property for multiplication?
A. 319 + 11) = 3(9) + 3(11)
C. 15 + 6 = 6 + 15
B. (2 x 6) x 24 = 2 x (6 x 24) D. 17(45) = 45(17)
10. When (19 + 2) + 14 is expressed to associative property, which of the following expressions is this equal to?
A. 2(14+19) B. 19(2 + 14)
C. 19+ (2 + 14) D. (19+ 2) + (2 + 14​

Answer:

  1. B
  2. A
  3. C
  4. C
  5. A
  6. D
  7. B
  8. C
  9. D
  10. C

Step-by-step explanation:

Hope its help

#CaRRy oN LeArNinG

15. What will be the whole number if you change

Ask: 15. What will be the whole number if you change 15/4 to a mixed number?
D.4
AI
B, 2
C. 3
16. Which of the following is equivalent to 18/7 ?
A. 24/7 B. 25/7 C. 36/7
D. 7/21
17. Which of the following fractions is equal to 3/4?
A. 6/8
B. 4/20 C. 3/12
D. 4/16
18. Which of the following is the lowest term of 24/30 ?
A. 4/5
B. 3/4
C. 1/2
D. 1/8
19. What is 18/42 reduced to lowest term?
A 1/7
B. 3/4
C. 1/6
D. 3/7
20. How many thirds are there in 16/24?
A 1
B. 2
C. 3
D. 4​

Answer:

16)a

17)d

18) c

19)b

20)b

17. If a whole number is divided into 9 equal

Ask: 17. If a whole number is divided into 9 equal parts, what fraction represents the two parts? * 1 point A. 2/9 B. ¾ C. ¼ D. 2/3

18. In 4/9 + 1/9 = 5/9, which is the sum? *

1 point

A. 1/9

B. 3/9

C. 4/9

D. 5/9

19. What is the lowest term of 6/9? *

1 point

A. 1/9

B. 2/9

C. 1/3

D. 2/320.

What is the equivalent fraction of 6/60? *

1 point

A. 4/15

B. 1/15

C. 1/10

D. 3/15

21. What do you call a fraction whose numerator is bigger than the denominator? *

1 point

A. improper fraction

B. mixed number

C. proper fraction

D. whole number
22. What is the lowest term of 45/90 ________. *
1 point
A. ½
B. 2 ½
C. 2/3
D. ¾
23. Change 2 1/5 to improper fraction. *
1 point
A. 11/5
B. 19/5
C. 20/5
D. 23/5
24. Which fraction is equivalent to 6/8? *
1 point
A. 2/10
B. 9/15
C. 8/12
D. 18/24

Answer:

  1. D (I think)
  2. D
  3. C
  4. C
  5. A
  6. A
  7. A
  8. (ĪDK)

Which of the following is the perfect square number closest

Ask: Which of the following is the perfect square number closest but less than 112? *
1 point
121
100
144
125
Which of the following is the closest approximation of √62? *
1 point
7.87
7.51
7.11
7.32
What is the square root of 53 to the nearest hundredths? *
1 point
7.27
7.28
7.29
7.26
Refer to the given number line below, which letter most accurately represents the location of -√11 on the number line? *
1 point
Captionless Image
B
C
D
A
Refer to the given number line below, which letter most accurately represents the location of √21 on the number line? *
1 point
Captionless Image
A
C
D
B
Refer to the given number line below, Locate and plot √21 on a number line. *
1 point
Captionless Image
C
B
A
D
Refer to the given number line below, Locate and plot √14 on a number line. *
1 point
Captionless Image
C
A
B
D
Which statement is NOT true? *
1 point
Every counting number is a whole number.
Every integer is a rational number.
Every natural number is a real number.
Every decimal is an irrational number.
Which statement is true? *
1 point
The set of whole numbers is subset of rational numbers.
The set of decimal numbers are subset of irrational numbers.
The set of real numbers is a subset of rational numbers
The set of irrational numbers are subset of rational numbers.
Classify the subset of real numbers to which each number belongs: 100 *
1 point
Integer
Irrational, Whole
Integer, Natural
Rational, Integer, Whole, Natural
Classify the subset of real numbers to which each number belongs: √5 *
1 point
Rational, Integer, Whole, Natural
Integer, Whole
Irrational
Integer, Natural
Classify the subset of real numbers to which each number belongs: 1/5 *
1 point
Rational
Whole, Natural
Integer, Natural
Irrational
Which of the following statement is False? *
1 point
An irrational number is always a real number.
All rational numbers are real numbers.
Every whole number is an integer.
Every decimal number is a rational number
Which number is the smallest? *
1 point
1.6
√5
-5
0.2525…
Which is in order from least to greatest? *
1 point
√9, 1.2, 0.7, -0.3, -8
-0.3. -8, 0.7, 1.2, √9
1.2, √9, 0.7, -8, -0.3
-8, -0.3, 0.7, 1.2, √9
Which of the following best represents the arrangement of -√2, -0.7, 1.2, …, √4 on the number line? Refer to the number line below. *
1 point
Captionless Image
A
C
D
B
It allows us to express a very small or very large number in a compact form. *
1 point
Standard form
Scientific Notation
Standard Notation
Real Numbers
Which of the following could not be able to express in scientific notation? *
1 point
38 billion
3/5
-0.00025
1.67000
Which of the following represents a standard notation? *
1 point
1.9 x 10^4
21.40 x 10^4
2.8 X 10000
0.00005
According to the World Health Organization (WHO), Covid-19 virus has a diameter approximately up to 0.00000014 meter. How would you express it in scientific notation? *
1 point
1.4 ×10^7 m
1.4× 10^8 m
1.4× 10^(-8) m
1.4 ×10^(-7) m
When 5 million converted into scientific notation, what is the power of 10 to complete the task? *
1 point
4
3
6
5
The body heat index in General Santos City last Wednesday rose to 41 ℃. On the next day, the body heat index is 37℃. What operation must be used to get the change in the temperature? *
1 point
multiplication
subtraction
division
addition
Today, Bella’s age (B) is 3 times Carla’s age. In 3 years, what will Carla’s age be in terms of B? *
1 point
3B+3
(B+3)/3
3(B+3)
B/3 + 3
Maria bought “3” /”4″ “kg” of rice. She cooked “1” /”4″ of it. How much kg of rice left? *
1 point
“1” /”4″ kg
“1” /”2″ kg
“1” /”3″ kg
“2” /”3″ kg
Marie went to KCC Mall to buy meats for their Noche Buena. She bought 2.087 kg of beef, 3. 42 kg of chicken, and 4. 24 kg of fish. What was the total weight of these items? *
1 point
9. 126kg
9. 747kg
9. 153kg
9. 477kg
The barangay will distribute equally 5 kilograms of rice donation to each family. If there are 20 sacks of rice at 50 kilograms per sack, how many families can receive it? *
1 point
350 families
300 families
200 families
250 families

THANK YOU TO WHO EVER ANSWERS THIS

Answer:

121

7.87

7.27

b

a

c

d

every number is a natural number

100

irritional whole

all national number is real number

-5

9

5

4

6

5

4

6

5

8

4

7

. These are numbers with more than two factors. *

Ask: . These are numbers with more than two factors. *

A. prime numbers
B. composite numbers
C. factors
D. multiples
2. Which of the following is a composite number? *
1 point
A. 47
B. 43
C. 41
D. 49
3. Which of these numbers is a prime number?
A. 35
B. 48
C. 51
D. 59
4. Write 16 as a product of its prime factors. *
1 point
A. 2x2x3
B. 2x3x3
C. 2x2x2x2x2
D. 2x2x2x2
5. What is the greatest common factor of 12 and 18? *
1 point
A. 3
B. 6
C. 9
D. 12
6. What is the least common multiple of 8 and 3? *
1 point
A. 48
B. 72
C. 24
D. 3
7. Which of these fraction is in mixed form? *
1 point
A. 7 1/4
B. 1/5
C. 9/5
D. 5/8
8. Which of these fractions is equal to 1? *
1 point
A. 9/8
B. 12/12
C. 9/17
D. 2/5
9. Which of the following is a proper fraction? *
1 point
A. 7/10
B. 15/4
C. 6/6
D. 10 1/9
10. Which is a set of similar fractions? *
1 point
A. 3/7, 2/6, 1/5
B. 1/7, 2/8, 3/9
C. ½, 1/3, 1/4
D. 2/15, 3/15, 4/15
11. Which is the numerator in 11/20? *
1 point
A. 20
B. 11
C. 9
D. 31
12. Which is a set of dissimilar fractions? *
1 point
A. 1/7, 5/7, 6/7
B. 2/5, 3/5, 4/5
C. 3/7, 4/6, 6/4
D. 5/8, 7/8, 3/8
13. Which is equal to 4 ¾? *
1 point
A. 14/4
B. 19/4
C. 11/4
D. 6/4
14. Which is equal to 5 ¾? *
1 point
A. 9/4
B. 23/4
C. 12/4
D. 19/4
15. If a whole number is divided into 9 equal parts, what fraction represents the two parts? *
1 point
A. 2/9
B. ¾
C. ¼
D. 2/3
16. In 4/9 + 1/9 = N, which is the sum? *
1 point
A. 1/9
B. 4/9
C. 5/9
D. 3/9
17. The lowest term of 6/9 is _____________. *
1 point
A. 1/9
B. 2/9
C. 1/3
D. 2/3
18. What is the equivalent fraction of 6/60? *
1 point
A. 4/15
B. 1/15
C. 1/10
D. 3/5
19. A fraction whose numerator is bigger than the denominator is called ______________. *
1 point
A. whole number
B. proper fraction
C. mixed number
D. improper fraction
20. A fraction whose numerator is smaller than the denominator is called ______________. *
1 point
A. whole number
B. proper fraction
C. mixed number
D. improper fraction
II. Add or subtract. Write your answers in lowest term. Choose the letter of the correct answer.
21) 3/8 + 2/8 *
1 point
A.5/8
B. 1/8
C. 5/16
D.1/16
22) 7/9 + 2/6 *
1 point
A. 10/9
B. 4/9
C. 7/18
D. 5/15
23) 15 – 2/12 *
1 point
A. 14 5/12
B. 14 8/12
C. 14 5/6
D. 14 2/12
24) 2/4– 1/4 *
1 point
A. 1/2
B. 1/4
C. 3/4
D. 2/4
25) 6/8– 2/8 *
1 point
A. 1/2
B. 1/4
C. 3/4
D. 2/4

•••••••••••••••••••••••••••••••••••••••••

[tex]huge{ mathcal{Question}}{:}[/tex]

1. These are numbers with more than two factors.

A. prime numbers

B. composite numbers

C. factors

D. multiples

2. Which of the following is a composite number?

A. 47

B. 43

C. 41

D. 49

3. Which of these numbers is a prime number?

A. 35

B. 48

C. 51

D. 59

4. Write 16 as a product of its prime factors. *

1 point

A. 2x2x3

B. 2x3x3

C. 2x2x2x2x2

D. 2x2x2x2

5. What is the greatest common factor of 12 and 18? *

1 point

A. 3

B. 6

C. 9

D. 12

6. What is the least common multiple of 8 and 3?

1 point

A. 48

B. 72

C. 24

D. 3

7. Which of these fraction is in mixed form? *

1 point

A. 7 1/4

B. 1/5

C. 9/5

D. 5/8

8. Which of these fractions is equal to 1? *

1 point

A. 9/8

B. 12/12

C. 9/17

D. 2/5

9. Which of the following is a proper fraction? *

1 point

A. 7/10

B. 15/4

C. 6/6

D. 10 1/9

10. Which is a set of similar fractions? *

1 point

A. 3/7, 2/6, 1/5

B. 1/7, 2/8, 3/9

C. ½, 1/3, 1/4

D. 2/15, 3/15, 4/15

11. Which is the numerator in 11/20? *

1 point

A. 20

B. 11

C. 9

D. 31

12. Which is a set of dissimilar fractions? *

1 point

A. 1/7, 5/7, 6/7

B. 2/5, 3/5, 4/5

C. 3/7, 4/6, 6/4

D. 5/8, 7/8, 3/8

13. Which is equal to 4 ¾? *

1 point

A. 14/4

B. 19/4

C. 11/4

D. 6/4

14. Which is equal to 5 ¾? *

1 point

A. 9/4

B. 23/4

C. 12/4

D. 19/4

15. If a whole number is divided into 9 equal parts, what fraction represents the two parts? *

1 point

A. 2/9

B. ¾

C. ¼

D. 2/3

16. In 4/9 + 1/9 = N, which is the sum? *

1 point

A. 1/9

B. 4/9

C. 5/9

D. 3/9

17. The lowest term of 6/9 is _____________. *

1 point

A. 1/9

B. 2/9

C. 1/3

D. 2/3

18. What is the equivalent fraction of 6/60? *

1 point

A. 4/15

B. 1/15

C. 1/10

D. 3/5

19. A fraction whose numerator is bigger than the denominator is called ______________. *

1 point

A. whole number

B. proper fraction

C. mixed number

D. improper fraction

20. A fraction whose numerator is smaller than the denominator is called ______________. *

1 point

A. whole number

B. proper fraction

C. mixed number

D. improper fraction

21. Add or subtract. Write your answers in lowest term. Choose the letter of the correct answer.

21) 3/8 + 2/8 *

1 point

A.5/8

B. 1/8

C. 5/16

D.1/16

22) 7/9 + 2/6 *

1 point

A. 10/9

B. 4/9

C. 7/18

D. 5/15

23) 15 – 2/12 *

1 point

A. 14 5/12

B. 14 8/12

C. 14 5/6

D. 14 2/12

24) 2/4– 1/4 *

1 point

A. 1/2

B. 1/4

C. 3/4

D. 2/4

25) 6/8– 2/8 *

1 point

A. 1/2

B. 1/4

C. 3/4

D. 2/4

•••••••••••••••••••••••••••••••••••••••••

[tex]huge{ mathcal{Answer}}{:}[/tex]

  1. b. composite number
  2. d. 49
  3. d. 59
  4. d. 2×2×2×2
  5. b. 6
  6. c. 24
  7. a. 7 ¼
  8. b. 12/12
  9. a. 7/10
  10. d. 2/15, 3/15, 4/15
  11. b. 11
  12. c. 3/7, 4/6, 6/4
  13. b. 19/4
  14. b
  15. a
  16. c
  17. d
  18. c
  19. d
  20. b
  21. a
  22. a
  23. c
  24. b
  25. a

•••••••••••••••••••••••••••••••••••••••••

HOPE IT HELPS(ノ^_^)ノ

numberl'ere. IND1 Which of the following shows the commutative property

Ask: number
l’ere. IND
1 Which of the following shows the commutative property of addition?
A. 9 +09
B. 18 x 65 65 x18 C. 6 + 25 + 25 + 6 D. 4(3 + 12) 403) + 402)
A2. What is the additive inverse of a negative integer?
A. Zero
B. Same integer C. Alway’s positive D. Always negative
3. Which of the following is a TRUE statement?
A. 24 – 8 – 8 — 24 B 4(24 + 6) = 4(6+24) C. 23 – (5-6) – (23-5) – 6 D. 12(32 x 24) – 12/24 x 32)
4. Which of the following numbers is the multiplicative identity for whole numbers?
A 3
B. 2
C. 1
D, 0
5. What is the equivalent expression when 4 x 32 is expressed in commutative property?
A. 32 x 4
B, 32 + 4
C, 32 x 1
D, 32 + 1
6. Which of the following statements shows the closure property of addition?
A. 2(3) – 3(2)
B. – 63 +92 – 29 C. 67 x 1 = 67
D. 92 + 0 = 92
7. Which of the following is the equivalent expression of 4(10 – 7) when expressed in distributive property?
A. 7(10) -4
B. 4(10) – 4(7) C. (4. 10) (4 – 7) D. (4+ 10) (4 + 7)
8 What is the result when we multiply any number by zero?
A. 2
B. 1
C. 0
D. – 1
9 Which of the following illustrates the associative property for multiplication?
A. 3(9+11) = 3(9) +3(11)
C. 15 + 6 = 6 + 15
B. (2 x 6) x 24 = 2 x (6 x 24) D. 17(45) – 45(17)
10. When (19+ 2) + 14 is expressed to associative property, which of the following expressions is this equal to?
A. 2(14 + 19) B. 19(2 + 14)
C. 19+ (2 + 14) D. (19+ 2) + (2 4 14
11197999​

Answer:

W = original width of cardboard (cm)

L = original length of cardboard (cm) = 12 + W

 

h = height of box = 5 cm

l = length of box (cm) = L – 2*h 

w = width of box = W – 2*h

 

v =  volume of box (cm^3) = l*w*h = 1900

 

v = (L-2*h)(W-2*h)*h   =  L*W*h – 2*L*h^2 – 2*W*h^2 + 4*h^3  = 1900  

 

h = 5 cm, insert into equation,  Note: h^2 = (5 cm)^2 = 25 cm^2  and 2*25 cm^2 = 50 cm^2

and 4*h^3 = 4*125 cm^3 = 500 cm^3 , Insert with results below:

 

(5 cm)*L*W – (50 cm^2)*L – (50 cm^2)*W + 500 cm^3 = 1900 cm^3        

 

or  simplifying:  (5 cm)*L*W – (50 cm^2)*(L + W) = 1400 cm^3                 

 

or w/o units:  5*L*W – 50*(L+W) = 1400                              mathematical statement as volume

 

To solve for unknown L and W, 

 

Simplify by dividing through each term by 5 cm:

 

L*W – (10 cm)*(L + W) = 280 cm^2                                mathematical statement using 2 unknown variable

 

or w/o units”   L*W – 10*(L+W) = 280

 

To find the original cardboard length (L) and width (W):

 

L = 12 cm + W

 

Substitute L = 12 cm +W and solve for W:

 

(12 cm + W)*W – (10 cm)*[(12 cm + W) + W] = 280 cm^2

 

 

(12 cm)*W + W^2  – 120 cm^2 + (20 cm)*W = 280 cm^2

 

(12 cm)*W + (20 cm)*W  + W^2 = 280 cm^2 + 120 cm^2 = 400 cm^2

 

simplify and rearrange as standard quadratic equation and solve:

 

W^2 + (32 cm)*W  – 400 cm^2 = 0          where: [ -b +/- √(b^2 – 4*a*c)]/2*a       a = 1    b = 32  c = -400

 

therefore, only use positive root:   W = [-32 + √( 32^2 – 4*1*(-400) )/2*1  = 9.612 cm

 

L = 12 cm + W = 12 cm + 9.612 cm = 21.612 cm

Step-by-step explanation:

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