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quester [9]
3 years ago
12

7. Suppose yogurt is on sale for $0.50 a piece, and you have a coupon for $0.30 off your total purchase. Write a function rule f

or the cost of n yogurts. How much would 20 yogurts cost?

Mathematics
2 answers:
meriva3 years ago
7 0

the answer is a actually C(n) =0.5n-3 ; $9.70 and an equation for 20 yogurts is 20(n)=c50-30 i did this once and my answer was similiar to this.

Julli [10]3 years ago
7 0
Well, to find the cost of yogurts, you would use
N = Y$0.50 - $0.30
(The cost of yogurts is the price of yogurts times the amount you bought, minus the $0.30 from the total)
If you bought 20, it would be:
0.5 x 20 = 10 10 - 0.3 = $9.70
The answer is the first one, hope this helps :)
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