peytenboggess peytenboggess

01-07-2020
Mathematics

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What is the value of x?

What is the value of x class=

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

01-07-2020

Answer:

x = 28

Step-by-step explanation:

We can use ratios to solve

x x+10

------ = -----------

42 42+15

Using cross products

42(x+10) = x(42+15)

42x+420 = 57x

Subtract 42x from each side

420 = 15x

Divide by 15

420/15 = x

28 =x

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