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nikdorinn [45]
3 years ago
11

A video store charges a monthly membership fee of $7.50, but the charge to rent each movie is only $1.00 per movie. Another stor

e has no membership fee, but it costs $2.50 to rent each movie. How many movies need to be rented each month for the total fees to be the same from either company? (Write an equation for this problem and solve.) :)
Mathematics
1 answer:
Zepler [3.9K]3 years ago
8 0
7.50 +1x =2.50x

x= movies
x=5
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Step-by-step explanation:

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so since we know the meal without the tip is 186 bucks, the tip was then 213.90 - 186 = 27.90.

but they got extra potato wedges with butter and the waitress was wearing her best hat, they added $20 more, so the tip ended  up as 27.90 + 20 = 47.90.

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\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 186&100\\ 47.90&x \end{array}\implies \cfrac{186}{47.90}=\cfrac{100}{x}\implies 186x=4790 \\\\\\ x=\cfrac{4790}{186}\implies x\approx \stackrel{\%}{25.75}

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in steps

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DE // BC

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