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24.06.2021 •
Mathematics
An advertising company charges $60 per half-page advertisement and $100 per full-page advertisement. Michael has a budget of $1340 to purchase 15 advertisements. Define a variable for each unknown. Write a system of equations to represent the situation. How many half-page advertisements does Michael purchase? Show your work. How many full-page advertisements does Michael purchase? Show your work.4
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Ответ:
The number of half-page advertisements is 4.
The number of Full-page advertisements is 11.
Step-by-step explanation:
According to the Question,
Given, An advertising company charges $60 per half-page advertisement and $100 per full-page advertisement. Michael has a budget of $1340 to purchase 15 advertisements.Let, 'x' be the number of half-page advertisements and 'y' be the number of full-page advertisements.
Thus, 60x + 100y is the money charged, and given that he has a budget of $ 1340.60x + 100y = 1340
And, the number of advertisements is 15. So, the other equation isx + y = 15
Now, We have Two Equations,
60x + 100y = 1340 and x + y = 15
the solution of the system is Put x=(15-y) in Equation 60x + 100y = 134060 (15-y) + 100y = 1340
900 - 60y + 100y = 1340
40y = 1340 - 900
40y = 440
y = 440/40
y = 11 So, For x = 15 - y ⇒ 15-11 ⇒ x=4 .
Thus, the number of half-page advertisements is 4 and The number of Full-page advertisements is 11 .Ответ:
260 so Answer B
Step-by-step explanation: