Answer:
a) $10 per hour
b) Sandra
Step-by-step explanation:
<u>Complete Question:</u>
<em>The equation y 10x describes the amount of money Sandra earns, where x is the number of hours she works and y is the amount of money she earns
</em>
<em>The table shows the amount of money Susan cams for different numbers of hours worked</em>
<em>Susan's Earnings
</em>
<em>Time (h) Money Earned</em>
<em>5 40</em>
<em>8 64 </em>
<em>10 80</em>
<em>(a) How much money does Sandra eam per hour? Show your work
</em>
<em>(b) Who earns more per hour? Justify your answer</em>
<em />
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<u>Answer:</u>
a)
y = 10x is sandra's equation. To find her hourly rate, we need to find how much she earns in "1" hour. Since x is hours, we plug in x = 1 and find y (which is her pay).
y = 10x
y = 10(1)
y = 10
$10 is Sandra's hourly rate.
b)
To find who earns more per hour, we need to find the hourly rate of Susan as well from the table. Then compare.
5 hours = $40 so per hour is 40/5 = 8
8 hours is 64, so per hour 64/8 = 8
10 hours is 80, so 80/10 = 8
The table is justified at $8 per hour.
We know Sandra earns $10/hr and Susan earns $8 per hour. So Sandra earns more per hour.
