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Evaluate the expression for the given values.
(a) The expression 5p − 7d evaluated for p = 8 and d = 1/7
(b) The expression 5p − 7d evaluated for p = 3 and d = −6
(a) The expression 5p−7d evaluated for p=8 and d= 1/7 is______ .
Part 2 Of Question
b) The expression 5p − 7d evaluated for p = 3 and d = −6 is ______

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addja48

Answer:

a is 39

b is 57

Step-by-step explanation:

you were given two different expressions to substitute.

the first one is p = 8 and d = 1/7

so we substitute into 5p - 7d

that is 5(8) - 7(1/7)

we get 40 - 1

which if we go ahead to evaluate we get 39

The second one p = 3 and d = -6

so we get 5(3) - 7(-6)

we get 15 - (-42)

if we go ahead to evaluate we get 15 + 42

two negative meeting each other gives you positive.

then it going too be 57

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