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McGraw Hill Integrated II, 2012

MH

McGraw Hill Integrated II, 2012 View details

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Exercise 1 Page 541

You can solve the proportion by using cross products.

4 or - 4

Practice makes perfect

To solve the proportion, we will start by using cross products.

3x/8=6/x

Cross multiply

3x(x)=8(6)

Multiply

3x^2=48

From here, we will continue solving for x by using the Division Property of Equality and calculating the square root.

3x^2=48

.LHS /3.=.RHS /3.

x^2=16

sqrt(LHS)=sqrt(RHS)

x=± sqrt(16)

Calculate root

x=± 4

Therefore, the solution is x=4 or x=- 4.

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