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Home Q & A Board Science-Related Homework Help Mathematics Calculus
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Catracho Catracho
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Posts: 529
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4 years ago
A car rental company offers two plans for renting a car:
Plan A: 30 dollars per day and 19 cents per mile
Plan B: 50 dollars per day with free unlimited mileage

For what range of miles will plan B save you money?
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#1
Educator
4 years ago
Set the two equations equation to each other to find the point of intersection first:

y = 0.19x + 30
y = 50

0.19x + 30 = 50
0.19x = 50 - 30
0.19x = 20
x = 20 / 0.19
x = 105.26, y = 50

Quote
For what range of miles will plan B save you money?

You'd save money with plan be if you drive less than 105.3 miles
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