Question

Gaira was asked to evaluate the algebraic

expression –3.8x + 6 when x = –7.5.
     –3.8(–7.5) + 6(–7.5)
      28.5 + (–45)
       (–16.5)
What mistake did she make? What is the correct answer?

Answer 1

-3.8x+6 when x is= -7.5

-3.8(-7.5)+6

28.5+6

34.5

Answer 2

Explanation:

-3.8x+6 when x is= -7.5

-3.8(-7.5)+6

28.5+6

34.5