Fitness center

Every Wednesday, Monica works out for 3/4  of an hour at the fitness center. Every Saturday, he goes to the fitness center again and exercises for 3 times as long. How much time does Wayne spend at the fitness center in all each week?

Correct answer:

w =  3 h

Step-by-step explanation:

$$\begin{gathered} a={\displaystyle \frac{3}{4}}=0.75\text{ h } \\ b=3\cdot a=3\cdot 0.75={\displaystyle \frac{9}{4}}=2.25\text{ h } \\ w=a+b=0.75+2.25=3\text{ h} \end{gathered}$$

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