S = 60W + 650 <== ur equation
after 18 weeks...so sub in 18 for W
S = 60(18) + 650
S = 1080 + 650
S = 1730 <==
Since the price is going down, it's going to be a percent decrease. Now to find the percent, we divide the "after" price by the "before" price.
240 / 320 = 0.75 = 75%
The item had a 75% decrease.
6(4)^2 + 2
= 6(16) + 2
= 96 + 2
= 98
Answer:
C. 1.15p + 2.85 = 5.84
Step-by-step explanation:
The equation above is not one you'd start off with to represent this problem. It is an intermediate step in the solution.
You can get there by realizing that the number of pounds of bananas is 3.8-p. Then the cost of the bananas is ...
banana cost = 0.75·(3.8-p) = 2.85 - 0.75p
Of course, the cost of apples is 1.90p. The total cost is then ...
apple cost + banana cost = total cost
1.90p + (2.85 -0.75p) = 5.84
Simplifying, this becomes ...
1.15p + 2.85 = 5.84 . . . . . . . . . . . . matches selection C