Date
Name
Enrichment and Extension
How much does it cost to travel one mile?
Your aunt and uncle each fill their cars' gas
tanks at the gas station whose sign is shown.
Your aunt gets 18 gallons of regular unleaded.
Her car averages 32 miles per gallon. Your
uncle gets 12 gallons of premium unleaded.
His car averages 30 miles per gallon.
Regular Unleaded
Mid-grade Unleaded
Premium Unleaded
3.69
3.79
3.«9
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1. Find your aunt's unit cost for each mile she drives. dioOVJC ^ <D * I '^^^j
2. Find your uncle's unit cost for each mile he drives. (H
3. Whose vehicle is getting the better value? Explain. l( OUf ^ i/AH | S fl€ttam th€ bct^
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4. Your uncle switches to mid-grade unleaded, and his car still averages about
30 miles per gallon. How does his unit cost change? Is he getting the better
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value for his vehicle compared to your aunt? Explain. A-hf^ouflh fvis CQTQO^SdOUJn A wlW
5. Suppose over tinle, gas prices decrease to about 80% of their current prices. . .
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Does this change your answer to Exercise 3? Explain. j\ 0 j | ^ ^ | | ^ ^ J y r ^ ^
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6. The United States uses about 146,000,000,000 gallons of gasoline each year.
a. How many gallons does the United States use every day? ^-QO^ OOOf 000 ^AliimS I
b. Use compatible numbers to estimate how many gallons the United States
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uses every minute. (x\o^^ a5D/0PD ^ ^ ( l i T y w y ^ j ^
c. Use compatible numbers to estimate how many gallons the United States
usescveiysecond,
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