It sounds like you want the decimal number to become a whole number. If so, then one way is to multiply both parts by 10 to move that decimal point over one spot to the right

3*10 = 30

2.1*10 = 21

The ratio 3:2.1 is equivalent to 30:21

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Then notice how 30 and 21 have the greatest common factor 3. Divide both parts by 3 so we can fully reduce this ratio

30/3 = 10

21/3 = 7

The ratio 30:21 simplifies fully to 10:7

The numbers 10 and 7 do not have any factors in common, other than 1, so we cannot reduce 10:7 any further.

7 0

4 years ago

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A movie theater sends out a coupon for 95% off the price of a ticket. Write an equation for the situation, where y is the pric

Sergio039 [100]

Answer:

y = 0.05x

Step-by-step explanation:

A movie theater sends out a coupon for 95% off the price of a ticket, so the price of the ticket with the coupon is 100% - 95% = 5% of the original price.

Let

x = original price

y = price of the ticket with the coupon

Then

x - 100%

y - 5%

Write a proportion:

$\dfrac{x}{y}=\dfrac{100}{5}$

Cross multiply:

$100y=5x\\ \\y=0.05x$

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