Question 1024760
Charlene is earning money to buy a new I-phone. She makes $10 per hour babysitting and $5 per hour gardening. She wants to make at least $80 each week. She can work no more than a total of 12 hours in a week. How many hours doing each jib will earn the most money each week? 
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Equations:
Hours Eq::: b + g = 12
Value Eq:::10b + 5g = 80
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Modify for elimination::
b + g = 12
2b + g = 16
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Subtract and solve for "b"::
b = 4 (# of hours babysitting)
g = 12-g = 8 hrs (# of hours gardining)
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Cheers,
Stan H.
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