Soda is on sale for $0.75 a can, and you have a coupon for $0.50 off your total purchase. Write a function rule for the cost of n sodas. How much would 10 sodas cost? (1 point) Responses C(n) = 0.5n – 0.75; $4.25 C ( n ) = 0.5 n – 0.75; $4.25 C(n) = 0.75n – 0.5; $7.00 C ( n ) = 0.75 n – 0.5; $7.00 C(n) = 0.5n – 0.5; $4.50 C ( n ) = 0.5 n – 0.5; $4.50 C(n) = 0.75n; $7.50

Question

Soda is on sale for $0.75 a can, and you have a coupon for $0.50 off your total purchase. Write a function rule for the cost of n sodas. How much would 10 sodas cost? (1 point) Responses C(n) = 0.5n – 0.75; $4.25 C ( n ) = 0.5 n – 0.75; $4.25 C(n) = 0.75n – 0.5; $7.00 C ( n ) = 0.75 n – 0.5; $7.00 C(n) = 0.5n – 0.5; $4.50 C ( n ) = 0.5 n – 0.5; $4.50 C(n) = 0.75n; $7.50

Answer 1

The correct function rule for the cost of n sodas is C(n) = 0.75n - 0.5.

To find out how much 10 sodas would cost, you can substitute n = 10 into the function:

C(10) = 0.75(10) - 0.5 = 7.50 - 0.5 = $7.00

So 10 sodas would cost $7.00.