Video store a charges a $15.00 account
setup fee and $1.75 per movie rental. video
store b charges a $7.50 account setup fee
and $2 25 per movie rental. what number
of movie rentals will make the total cost of
renting movies from video store a equal to
the total cost of renting movies from video
store b?
d david on
a

Step-by-step explanation:

video store A : 15 + 1.75m

video store B : 7.5 + 2.25m

15 + 1.75m = 7.5 + 2.25m

15 - 7.5 = 2.25m - 1.75m

7.5 = 0.50m

7.5 / 0.50 = m

15 = m <=== there would have to be 15 movie rentals to make them equal

check...

15 + 1.75m                      7.50 + 2.25m

15 + 1.75(15) =                 7.50 + 2.25(15) =

41.25                               41.25

yep...it checks out

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation: