victoria5817 victoria5817
  • 08-01-2019
  • Mathematics
contestada

How do I solve this problem

How do I solve this problem class=

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 09-01-2019

Answer:

a =9

b= 28

Step-by-step explanation:

The parts of the ratio must be equal

5:7:a = 20:b:36

How do we get from 5 to 20

We multiply by 4

So multiply the first by 4

5*4:7*4:a*4 = 20:b:36

Ratio 1

5*4 =20  true

Ratio 2

7*4 =b

28 = b

Ratio 3

4a = 36

Divide by 4

4a/4 = 36/4

a = 9

Answer Link

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