emfranco1
17.04.2020 •
Mathematics
The Revenue from selling X shirts is r(x)=15x
The cost of buying X shirts is c(x)=7x+20
The profit from selling X shirts id p(x)=r(x)-c(x)
What is p(x) ?
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Ответ:
1 Ques
Answer
a) Subtract x from both sides:
Divide both sides by -4 to get:
(b)
Add x to both sides:
Subtract 16 from both sides:
Divide both sides by 26 to get:
Simplify:
(c)
Add 12 to both sides:
Subtract x from both sides:
Divide both sides by 7 to get: or we can write