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McGraw Hill Glencoe Algebra 2, 2012 View details

1. Expressions and Formulas

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Exercise 19 Page 7

Substitute - 4 for a, - 0.8 for b, and 15 for d.

20

Practice makes perfect

To evaluate the given expression for a = - 4, b = - 0.8, and d= 15, we should substitute these values into the expression and simplify as much as possible.

a-b/bd

SubstituteValues

Substitute values

- 4-(- 0.8)/- 0.8( 15)

SubNeg

a-(- b)=a+b

- 4 + 0.8/- 0.8( 15)

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Simplify

AddTerms

Add terms

- 3.2/- 0.8( 15)