A bike rental company charges $10 plus a charge per for the distance ridden. the total cost, t, can be represented by the equati
on t=10+cm , where c is the additional cost per mile and m is the number of miles ridden. solve the equation for c.
1 answer:
Answer:
Step-by-step explanation:
Subtract 10 from both sides:
Divide both sides by :
Placing on the left:
For example, if the total charge is $27.50 and the distance ridden is 250 mi, we can calculate the additional cost per mile, as such:
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x^2b + t = x^2e
x^2e - x^2b = t
x^2(e - b) = t
x^2 = t /(e -b)
x = √[t /(e -b)] or x = - √[t /(e -b)]
f(x) = 8x-9
substitute 4 in for x
f(4) = 8(4) -9
f(4) = 32 -9
f(4) =23
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if you count the lines on the ruler, you can find the answer