math problem: how many pounds of CO will be put into the air

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If a gasoline-powered car traveling at 40 miles per hour gives off three pounds of carbon monoxide each hour, and if that car is driven two hours a day, then how many pounds of carbon monoxide will the car put into the air in a year? :? :)
 
Re: math problem: how many pounds of CO will be put into the

bluebrit said:
If a gasoline-powered car traveling at 40 miles per hour gives off three pounds of carbon monoxide each hour, and if that car is driven two hours a day, then how many pounds of carbon monoxide will the car put into the air in a year? :? :)

3 pds/hour
2hours/day
365days/year

3*2*365=2190
 
Mcrae answer is correct. You could set this up as a proportion and cross muliply:

\(\displaystyle \frac{3}{1}=\frac{x}{750}\)

\(\displaystyle x=2190\)
 
jonboy said:
Mcrae answer is correct. You could set this up as a proportion and cross muliply:
\(\displaystyle \frac{3}{1}=\frac{x}{750}\)
\(\displaystyle x=2190\)
C'mon jonboy: 3 * 750 = 2250

and WHY do set ups of any kind?
 
jonboy said:
You could set this up as a proportion...
Denis said:
C'mon jonboy.... WHY do set ups of any kind?
Good point, especially since this was posted to the "Arithmetic" category, so the original poster is unlikely to have learned yet about variables or solving equations.

Eliz.
 
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