Task \#2: Apply skills and explain your thinking!

Loren and Julie have different part-time jobs after school. They are both paid at a constant rate of dollars per hour. The tables below show Loren and Julie's total income (amount earned) for working a given amount of time.

Loren
\begin{tabular}{|l|c|c|c|c|c|c|c|c|c|}
\hline Hours & 2 & 4 & 6 & 8 & 10 & 12 & 14 & 16 & 18 \\
\hline Dollars & 18 & 36 & 54 & 72 & 90 & 108 & & & 162 \\
\hline
\end{tabular}

Julie
\begin{tabular}{|l|c|c|c|c|c|c|c|c|c|}
\hline Hours & 3 & 6 & 9 & 12 & 15 & 18 & 21 & 24 & 27 \\
\hline Dollars & 36 & & 108 & 144 & 180 & 216 & & 288 & 324 \\
\hline
\end{tabular}

a. Find the missing values in the two tables above.
b. Who makes more per hour? Justify your answer.
c. Write how much Julie makes as a rate. What is the unit rate?
d. How much money would Julie earn for working 16 hours?
e. What is the ratio between how much Loren makes per hour and how much Julie makes per hour?
f. Julie works [tex]$\frac{1}{12}$[/tex] hours/dollar. Write a one or two-sentence explanation of what this rate means. Use this rate to find how long it takes for Julie to earn \$228.



Answer :

Sure, let's go through each part of the question step by step.

### a. Find the missing values in the two tables above.

Loren's Table:

Given:
- Hours: 2, 4, 6, 8, 10, 12, 14, 16, 18
- Dollars: 18, 36, 54, 72, 90, 108, ?, ?, 162

To find Loren's rate of pay:
- He makes [tex]$18 for 2 hours, so he makes $[/tex]18 / 2 = [tex]$9 per hour. Calculate the missing values: - For 14 hours: 14 hours * $[/tex]9/hour = [tex]$126 - For 16 hours: 16 hours * $[/tex]9/hour = [tex]$144 So, Loren's complete table: - Dollars: 18, 36, 54, 72, 90, 108, 126, 144, 162 Julie's Table: Given: - Hours: 3, 6, 9, 12, 15, 18, 21, 24, 27 - Dollars: 36, ?, 108, 144, 180, 216, ?, 288, 324 To find Julie's rate of pay: - She makes $[/tex]36 for 3 hours, so she makes [tex]$36 / 3 = $[/tex]12 per hour.

Calculate the missing values:
- For 6 hours: 6 hours [tex]$12/hour = $[/tex]72
- For 21 hours: 21 hours
[tex]$12/hour = $[/tex]252

So, Julie's complete table:
- Dollars: 36, 72, 108, 144, 180, 216, 252, 288, 324

### b. Who makes more per hour? Justify your answer.

Julie makes more per hour. We found that Loren makes [tex]$9 per hour and Julie makes $[/tex]12 per hour. Since [tex]$12 is greater than $[/tex]9, Julie makes more per hour.

### c. Write how much Julie makes as a rate. What is the unit rate?

Julie makes [tex]$12 per hour. This rate means that for every hour Julie works, she earns $[/tex]12.

### d. How much money would Julie earn for working 16 hours?

To find out how much Julie would earn for working 16 hours, we use her hourly rate of [tex]$12 per hour: - 16 hours * $[/tex]12/hour = [tex]$192 So, Julie would earn $[/tex]192 for working 16 hours.

### e. What is the ratio between how much Loren makes per hour and how much Julie makes per hour?

The ratio of Loren's rate to Julie's rate:
- Loren's rate: [tex]$9 per hour - Julie's rate: $[/tex]12 per hour

The ratio:
- [tex]$9 / $[/tex]12 = 0.75

So, the ratio between how much Loren makes per hour and how much Julie makes per hour is 0.75.

### f. Julie works [tex]\(\frac{1}{12}\)[/tex] hours/dollar. Write a one or two-sentence explanation of what this rate means. Use this rate to find how long it takes for Julie to earn [tex]$\$[/tex] 228[tex]$. This rate means that for every dollar Julie earns, she works \(\frac{1}{12}\) hour. To find out how long it takes for Julie to earn $[/tex]228:
- Time = [tex]$228 * \(\frac{1}{12}\) hours/dollar - Time = 19 hours So, it takes Julie 19 hours to earn $[/tex]228.

By following these steps, we've addressed each part of the problem and provided the necessary calculations and explanations.