SOLUTION: It costs a pretzel vendor $20 per day to rent a cart and $0.75 for each pretzel.
(A) Find the cost of selling x pretzels in 1 day.
(B) What is the cost of selling 150 pretzels i
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Question 1167622: It costs a pretzel vendor $20 per day to rent a cart and $0.75 for each pretzel.
(A) Find the cost of selling x pretzels in 1 day.
(B) What is the cost of selling 150 pretzels in 1 day?
(C) If the daily cost is $275, how many pretzels were sold that day?
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
the formula for selling x pretzels in a day is:
y = 20 + .75 * x
if the number of pretzels sold is 150, then the formula becomes:
y = 20 + .75 * 150
solve for y to get:
y = 20 + 112.5 = 132.5
if the daily cost is 275, then the number of pretzels sold is calculated below.
start with 275 = 20 + .75 * x
subtract 275 from both sides of the equation to get:
255 = .75 * x
divide both sides by .75 to get:
340 = x
340 pretzels are sold if the total cost for the day is 275.
y = 20 + .75 * 340 = 275, confirming the solution is correct.
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