explanation: substitute the values for x and s in the equation from part a: y = 20x + 0.15s x = 25, s = 0 y…

explanation: substitute the values for x and s in the equation from part a: y = 20x + 0.15s x = 25, s = 0 y = ($20 × 25) + (0.15 × $0) = $500 part c question emma is planning how much she needs to make next week. she can only work 25 hours, and she needs to make a $620. what is the dollar value of sales emma will need to make? type the correct answer in the box. use numerals instead of words. emma will need to make sales totaling $ next week to meet her goal.

explanation: substitute the values for x and s in the equation from part a: y = 20x + 0.15s x = 25, s = 0 y = ($20 × 25) + (0.15 × $0) = $500 part c question emma is planning how much she needs to make next week. she can only work 25 hours, and she needs to make a $620. what is the dollar value of sales emma will need to make? type the correct answer in the box. use numerals instead of words. emma will need to make sales totaling $ next week to meet her goal.

Answer

Explanation:

Step1: Write the equation

We know the equation for total earnings $y = 20x+0.15s$, where $x$ is the number of hours worked and $s$ is the value of sales. We are given $x = 25$ and $y=620$, and we need to solve for $s$.

Step2: Substitute known values

Substitute $x = 25$ and $y = 620$ into the equation: $620=20\times25 + 0.15s$.

Step3: Simplify the right - hand side

First, calculate $20\times25=500$. So the equation becomes $620 = 500+0.15s$.

Step4: Isolate the term with $s$

Subtract 500 from both sides of the equation: $620 - 500=0.15s$, which simplifies to $120 = 0.15s$.

Step5: Solve for $s$

Divide both sides of the equation by 0.15: $s=\frac{120}{0.15}=800$.

Answer:

800