angie249
06.11.2020 •
Mathematics
The science club is comparing options for purchasing new T-shirts. One company charges a $100 base fee plus an additional $3.50 per shirt. A second company charges a $120 base fee but only an additional $2.50 per shirt. The given expression represents the difference of the two companies’ average cost per shirt. Which expression is equivalent to the expression representing this situation?
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Ответ:
A
Step-by-step explanation:
We have a common denominator, so we can just subtract the numerators, and leave it over the given denominator.
[(3.5x+100)-(2.5x+120)]/x
(3.5x+100-2.5x-120)/x
(1x-20)/x
(x-20)/x=A
Ответ: