Question

I don't understand help!

Answer 1

So if Jacob works x shifts, he works for a total of $2 \frac{1}{2}$ hours, and each shift is $\frac{3}{4}$ hours, the equation can be set up as;
$2 \frac{1}{2} =x* \frac{3}{4} \\( \frac{4}{3} )*2 \frac{1}{2} =(x* \frac{3}{4})*( \frac{4}{3} )\\ \frac{4}{3} * \frac{5}{2} =x\\x= \frac{20}{6} =3 \frac{1}{3}$
So Jacob worked $3 \frac{1}{3}$shifts