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Natasha_Volkova [10]
3 years ago
6

The equation R=10a-20 represents the revenue R (in dollars) you make by spending A dollars on advertising. You revenue totaled $

110. How much did you spend on advertising
Mathematics
2 answers:
timurjin [86]3 years ago
6 0
R = 10a - 20
ur revenue totaled 110...so R = 110

110 = 10a - 20
110 + 20 = 10a
130 = 10a
130/10 = a
13 = a <== so u spent $13 on advertising
Alex3 years ago
4 0

Answer:

13 dollars

Step-by-step explanation:

We have that the equation that represents the revenue R in dollars is:

R=10a-20

<em>Where:</em>

<em>R= revenue</em>

<em>a= spending dollars on advertising</em>

We know that R= 110 dollars, now we have to substitute in the formula and solve:

<em>110 = 10a-20</em>

<em>Solving:</em>

<em>110+20 = 10a</em>

<em>130 = 10a</em>

<em>130/10 = a</em>

13=a

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