A movie theater sends out a coupon for 10% off the price of a ticket, so the price of the ticket with the coupon is 100% - 10% = 90% of the original price.

Let

x = original price

y = price of the ticket with the coupon

Then

x - 100%

y - 90%

Write a proportion:

$\dfrac{x}{y}=\dfrac{100}{90}$

Cross multiply:

$100y=90x\\ \\y=0.9x$

Since the original price and final price are always greater than 0, then the graph of this equation is in the first quadrant (see attached diagram)

4 0

3 years ago

What is the area of the triangle?

Nutka1998 [239]

Answer:

742.5 in²

Step-by-step explanation:

area of triangle is 0.5 × base length × perpendicular height of the triangle

=0.5 × 33 × 45

=742.5 square inch

7 0

3 years ago

(7 + 18) x 3÷ (2 + 13) -28

galina1969 [7]

I was not sure if the x is multiplication or not. if it is its then its -23 if its not its 5x-28. I hope this helps.

6 0

3 years ago

200 is what percent of 120?

Zarrin [17]

Answer:

166.66 and 166.67 rounded

Step-by-step explanation:

7 0

3 years ago

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