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
(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
Answers
GPT 3.5
The correct answer is C(n) = 0.75n - 0.5; $7.00.
To find the cost of n sodas, we multiply the price per can ($0.75) by the number of sodas (n) and subtract the coupon value ($0.50).
To find the cost of 10 sodas, we substitute n with 10 in the function rule: C(10) = 0.75(10) - 0.5 = $7.00.
To find the cost of n sodas, we multiply the price per can ($0.75) by the number of sodas (n) and subtract the coupon value ($0.50).
To find the cost of 10 sodas, we substitute n with 10 in the function rule: C(10) = 0.75(10) - 0.5 = $7.00.