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Zigmanuir [339]
3 years ago
11

Marco has a $15.00 gift card to a movie theater. He wants to buy each of his friends a $3

Mathematics
1 answer:
Nataly_w [17]3 years ago
8 0

Answer:

I believe the answer is 6

Step-by-step explanation:

f(x) = 3x - 15 -- plug 7 into x (that's how many candy bars he's buying)

f(x) = 3(7) - 15 -- solve the equation (just know that 3(7) is the total, and 15 is the amount of money on his gift card.)

f(x) = 21 - 15

f(x) = 6 -- your answer

I hope this helps :)

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