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Mathematics
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Ramon rented a sprayer and a generator. On his fist job, he used each piece of equipment for 6 hours at a total cost $90. On his second job, he used the sprayer for 4 hours and he generator for 8 hours at a total cost of $100. What was the hourly cost of each piece of equipment?

Apr 27th, 2015

6s+6g=90

4s+8g=100

s+g=15
s+2g=25
15-g=25-2g
g=10
s=5

6(5)+6(10)=90

4(5)+8(10)=100

So generator is $10 an hr and sprayer is $5 an hr. 


Apr 26th, 2015

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