a store sells new DVDs for $12 each. used DVDs sell for $7 each. Joseph is buying two new DVDs and X used DVDs. write an equatio

Question

tangare [24]

3 years ago

8

a store sells new DVDs for $12 each. used DVDs sell for $7 each. Joseph is buying two new DVDs and X used DVDs. write an equatio

n that can be used to find X, the total Joseph must pay in dollars

Mathematics

2 answers:

vagabundo [1.1K] · Answer 1 · 2022-04-27T13:14:43+03:00

vagabundo [1.1K]3 years ago

7 0

Given that new DVDs are selling for $12 and used for $7, then Joseph is buying:
12·2 + 7<em>x </em>=

earnstyle [38] · Answer 2 · 2022-04-27T14:40:30+03:00

earnstyle [38]3 years ago

7 0

Used DVDs = x
Total = t

t = 12(2) + 7x
t = 24 + 7x
t - 24 = 7x
(t - 24) / (7) = x

If given the total, you can plug it in to variable t and then work the right side of the equation to isolate variable x and solve to find its value.