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Answered

1, In 15/20 = 3/n what is n?
a. 4
b. 3
c. 5
2, The length and width of a rectangle are in the ratio 3:1 if the width is 7 cm what is the length of the rectangle?
a. 14 cm
b. 16 cm
c. 18 cm
d. 21 cm
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Sagot :

NICOLEASHLEY18412IN

ANSWER :

1) a. 4

[tex]\frac{15}{20}[/tex] = [tex]\frac{3}{n}[/tex]

15 × n = 15n

20 × 3 = 60

60 ÷ 15n = 4

2) d. 21 cm

3 : 1 = n : 7

3 × 7 = 21

1 × n = 1n

21 ÷ 1n = 21 cm

VONUYVICOSHINYUNAIN

Answer:

1. A

2. D.

Step-by-step explanation:

1.

15/3 = 5

20/5 = 4

2.

Let x = Width

3x = Length

Width = x = 7

Length = 3x = 21

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