hwo do you do this algebra problem?
"The formula C=80+15(n-4) is used to find the cost, C, of a taxi ride where n represents the number of 1/4 miles of the ride. The cost of a taxi ride of 2 3/4 miles is" ??? Please give me the formula how to do it and explain it thoroughly thank you!! :)
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Well, to find what N is, divide the 2 3/4 by 1/4. This gives you that n is equal to 11. After that, substitute the n in the equation with 11 to get C =80+15(11-4).
Simplifying gives you:
C=80+15(7)
C=80+105
C=185.
Solve for n:
n= m/(1/4) where m is the total miles of the ride
n= (2 3/4)/(1/4)
n= 11
Plug it in the cost equation (C)
C= 80 + 15(n-4)
C= 80 + 15(11 - 4)
C= 185
C = 80 + 15(2.75 - 4)
= 80 + 15 (-1.25)
= 80 - 18.75
= 61.25
ANSWER: 61.25