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ID: 3117124 • Letter: S
Question
Show IntroInst You've already done this problem. Score on last attermpt:0 out of 1 (parts: score in gradebook: 0 out of i (parts 00.33,00.33, × 0/0.34) 00.33.* 00.33, x 00.34) Try another similar question Question with last attempt is displayed for your review only The cost of making 11 lamps is $1,070. The cost of making 26 lamps is $2,270. What is the cost per lamp? [ ]# Write a linear equation that tells you the total cost, C, of making z lamps: Preview syntax error If your total cost is $7,470, how many lam ps did you make?Explanation / Answer
let the linear equation be of the form
y=mx+b
where is number of lamps
y =cost
given (11,1070) (26,2270)
1070=11m+b
2270=26m+b
1200=15m
m=1200/15=80
1070=11*80+b
b=190
y=80x+190
c=80x+190
cost per lamp=80+90/x
total cost =$7470
7470=80x+190
x=91