Suppose soda is on sale for .50 a can and you have a coupon for .80 off the total price. Write a function rule for the cost of n cans of soda.
My answer is c(n() = .80n -.50
All the answer choices are:
A: C(n)=0.80n-0.50
B: C(n)=0.50n-0.80
C: C(n)=(0.50+n)-0.80
D: C(n)=(0.80+n)-0.50
The answer is B!
It's B, I got a 97 on the whole thing.
I hope ur right thx
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sorry I meant c(n) =.50n-.80
huh?
If it were just .50 per can
total cost = .50 n
but we get .80 off the total cost so
cost of the deal = .50 n - .8
C(n)=0.75n-0.50;$7.00
well we agree but I am wondering - If I buy one can do they give me 30 cents and the can?
good question
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