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McGraw Hill Glencoe Algebra 2, 2012 View details

1. Expressions and Formulas

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Exercise 31 Page 8

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

13.8

Practice makes perfect

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

2(6w-2y)-8z

SubstituteValues

Substitute values

2(6( 3/4)-2( - 2))-8( 0.4)

MoveLeftFacToNum

a*b/c= a* b/c

2(18/4-2(- 2))-8(0.4)

CalcQuot

Calculate quotient

2(4.5-2(- 2))-8(0.4)

Multiply

2(4.5+4)-3.2