Preston works at a grocery store and earns between $64 and $81 each day he works. Which is a reasonable estimation of how much Preston will earn if he works 5 days?
Responses
A $220$220
B $940$940
C $370$370
D $480
To find an estimate of how much Preston will earn if he works 5 days, we can find the average of the minimum and maximum amounts he earns each day and then multiply that average by 5.
The average of $64 and $81 is $(64 + 81)/2 = 145/2 = 72.5$.
Therefore, Preston will earn approximately $72.5 * 5 = 362.5$.
The closest option to this estimate is $\boxed{\text{(C)}$370}.
To estimate how much Preston will earn if he works 5 days, we can find the average of the minimum and maximum amounts he earns each day and multiply it by 5.
Minimum amount Preston earns per day = $64
Maximum amount Preston earns per day = $81
Average amount Preston earns per day = (64 + 81) / 2 = $72.5
Estimated earnings for 5 days = Average amount per day * Number of days = $72.5 * 5 = $362.5
Therefore, a reasonable estimation of how much Preston will earn if he works 5 days is $370 (option C).
To estimate how much Preston will earn if he works 5 days, we can find the average daily earning by taking the average of the minimum and maximum amounts, and then multiply it by the number of days.
Step 1: Find the average daily earning.
Add the minimum and maximum amounts: $64 + $81 = $145
Divide by 2: $145 / 2 = $72.50
Step 2: Multiply the average daily earning by the number of days.
Multiply $72.50 by 5: $72.50 * 5 = $362.50
A reasonable estimation of how much Preston will earn if he works 5 days is around $362.50.
The closest answer option to this estimation is C) $370.