On Friday 2

On Friday, a bowling alley made $842.72 from lane rentals and $412.38 from the concession stand. On Saturday, their lane rentals were down by 1/8, but the concessions increased by One-half. What is the total amount that the bowling alley earned in lane rentals and concessions on Friday and Saturday?

Correct answer:

x =  2611.05

Step-by-step explanation:

$$\begin{gathered} a=842.72\text{USD} \\ b=412.38\text{USD} \\ {a}_2=a-a/8=842.72-842.72/8=\frac{36869}{50}=737\frac{19}{50}=737.38\text{USD} \\ {b}_2=b+b/2=412.38+412.38/2=618.57\text{USD} \\ x=a+b+a_2+b_2=842.72+412.38+737.38+618.57=\frac{52221}{20}=2611\frac{1}{20}=2611.05 \end{gathered}$$

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