Q:

Evaluate: -4(-1/8 + 0.3)A. - 1.7B. - 0.7C. 0.8D. 2

Accepted Solution

A:
[tex]-4(- \dfrac{1}{8} + 0.3)[/tex]

Rewrite decimal to fraction:
[tex]= -4(- \dfrac{1}{8} + \dfrac{3}{10})[/tex]

Change the denominators to be the same:
[tex]= -4(- \dfrac{1 \times 5}{8 \times 5} + \dfrac{3 \times 4}{10 \times 4})[/tex]

Simplify each fraction:
[tex]= -4(- \dfrac{5}{40} + \dfrac{12}{40})[/tex]

Add the fraction in the bracket:
[tex]= -4( \dfrac{7}{40})[/tex]

Multiply:
[tex]= -\dfrac{7}{10}[/tex]