Answer:
A) -4 over 9
Step-by-step explanation:
We have the fraction the equivalent of this fraction is
Both fractions are the same and equivalent, the negative sign makes the whole fraction negative regardless of whether it is in the numerator or denominator.
He answered 20 questions correctly.
25×.8(80%) = 20.
no of days no of men
30 20
24 20
30/24=x/20
24 x=30*20
24x=600
x=600/24
x=25
therefore 5 more men are needed to complete the work in 24 days