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McGraw Hill Glencoe Algebra 2, 2012 View details

1. Expressions and Formulas

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Exercise 34 Page 8

Substitute 34 for w, 8 for x, - 2 for y, and 0.4 for z.

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Practice makes perfect

To evaluate the given expression for w= 34, x= 8, y= - 2, and z=0.4, we should substitute these values into the expression and simplify as much as possible.

wx+yz/wx-yz

SubstituteValues

Substitute values

34( 8)+( - 2)(0.4)/34( 8)-( - 2)(0.4)

MoveRightFacToNum

a/c* b = a* b/c

244+(- 2)(0.4)/244-(- 2)(0.4)

CalcQuot

Calculate quotient

6+(- 2)(0.4)/6-(- 2)(0.4)

Multiply

6+(- 0.8)/6-(- 0.8)