Chapter SH, Problem 8.2MPS

(a)

To determine

To calculate: To write an equation that describes the relationship between J’s total earnings $e$ and the number of pairs of shoes he sell $s$

Answer to Problem 8.2MPS

Equation to relationship between J’s earnings and number of pairs of shoes sell is $e=215+5s$

Explanation of Solution

Given information: J makes $\$215$ per week at a shoe store plus an additional $\$5$ for every pair of shoe he sells

Calculation:

Given that J makes $\$215$ per week at a shoe store plus an additional $\$5$ for every pair of shoe he sells

Let the total earnings be $e$

Let the number of pair of shoes sold be $s$

Thus, equation that describes the relationship between J’s total earnings $e$ and the number of pairs of shoes he sell $s$ is given as

  $e=215+5s$

Conclusion:

Hence, required equation is $e=215+5s$

(b)

To determine

To calculate: To determine how much money J would make if he sells $24$ pair of shoes

Answer to Problem 8.2MPS

Julio will make $\$335$ money

Explanation of Solution

Given information: J makes $\$215$ per week at a shoe store plus an additional $\$5$ for every pair of shoe he sells

Calculation:

Given that J makes $\$215$ per week at a shoe store plus an additional $\$5$ for every pair of shoe he sells

Equation that describes the relationship between J’s total earnings $e$ and the number of pairs of shoes he sell $s$ is given as

  $e=215+5s$

Now, number of shoes J sells is $24$

Thus,

  $s=24$

Substituting the value,

  $e=215+5\left(24\right)$

On solving the equation,

  $\begin{array}{l}e=215+120\\ e=335\end{array}$

Conclusion:

Hence, J will make $\$335$ money