Question

Myra is evaluating the expression -31.7 +4.5x, when x = 2.1.
-31.7 + 4.5(2.1)
-27.2(2.1)
-57.12
What was Myra's error?

Myra should have multiplied -31.7 and 2.1 first.

Myra should have multiplied 4.5 and 2.1 first.

Myra should have subtracted -27.2 and 2.1 first.

Myra should have added -31.7 and 2.1 first.​

Answer 1

Answer:

By putting the value of x in the question.

-31.7+4.5(2.1)

we multiply -31.7×2.1 and 4.5×2.1

so -27.2(2.1)

we subtract-2.7.2-2.1

=-57.12. Answer

Answer 2

Answer:

By putting the value of x in the question.

-31.7+4.5(2.1)

we multiply -31.7×2.1 and 4.5×2.1

so -27.2(2.1)

we subtract-2.7.2-2.1

=-57.12. Answer

explanation: