Question

a line 20 inches long divided into parts whose lengths have a ratio 3:7. find the length of the shorter part

Answer 1

let the lengths are 3x, 7x.

3x+7x=20

10x=20

x=20/10

x=2cm.

LENGTH OF SHORTER PART

3x=3×2=6cm.

:)

Answer 2

Answer:

3/10×20=6 inches

Step-by-step explanation:

1. sum of the ratio = 7+3=10
2. smaller = 3 /10×20=6
3. because total is 20 inches

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