Question

Solve the following proportions

1. 15:x=25:40
2. 5/13=x/2
3. 2x-1/2 = 125/5​

Answer 1

1. 15:x=25:40

15×40=25x

600=25x

x=24

2. 5/13=x/2

5×2=13x

10=13x

x=10/13

x=0.76

3. 2x-1/2 = 125/5

4x-1=2(25)

4x=50-1

x=49/4

x=12.25

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