Answer:
B. [tex]-\frac{7}{10}[/tex] = -.7
Step-by-step explanation:
Replace all occurrences of − − with a single +. Two consecutive minus signs have the same mathematical meaning
[tex]-.75+\frac{2}{5}+.4-\frac{3}{4}[/tex]
Find the common denominator.
[tex]\frac{-.75*20}{20} +\frac{2*4}{20} +\frac{.4*20}{20}-\frac{3*5}{20}[/tex]
Simplify terms.
[tex]\frac{-15+8+8-15}{20}[/tex]
Simplify the numerator.
[tex]\frac{-14}{20}[/tex]
Reduce the expression by cancelling the common factors.
[tex]-\frac{7}{10}[/tex]
hope this helps, good luck :)
