Justin is evaluating the expression 12.53.8x, when x is 7.9. 12.5+3.847.9) 16.3(7.9) 128.77 What was Justin’s error?

Question

Justin is evaluating the expression 12.53.8x, when x is 7.9.
12.5+3.847.9)
16.3(7.9)
128.77
What was Justin’s error?
Justin should have multiplied 12.5 and 7.9 first.
Justin should have added 12.5 and 7.9 first.
Justin should have multiplied 3.8 and 7.9 first.
O Justin should have added 3.8 and 7.9 first.

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Latifah 6 months 2021-07-23T15:05:02+00:00 1 Answers 10 views 0

Answers ( )

  1. yenoanh
    0
    2021-07-23T15:06:42+00:00
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    Answer:

    C.) Justin should have multiplie 3.8 and 7.9 first.

    Step-by-step explanation:

    To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.

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