At Frugal Foods a loaf of bread cost about $1 in 1980. In 2013, the loaf of bread cost $2.50.

1.A ratio is a comparison of two amounts by division. What is the ratio of the cost of a loaf of bread in 2013 to the cost in 1980? 2.50/1

2. Assuming the price of clothing increased at the same rate, if the cost of jeans at Cobb’s Corner was $15 in 1980, what would the cost of the jean be in 2013?
Explain.

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To find the cost of jeans in 2013, we can use the ratio we found earlier. The ratio of the cost of a loaf of bread in 2013 to the cost in 1980 is 2.50/1.

Now, we can apply this ratio to the cost of jeans in 1980. If jeans cost $15 in 1980, we need to find how many times the cost increased from 1980 to 2013.

To do this, we can multiply the cost of jeans in 1980 by the ratio we found earlier:
Cost in 2013 = Cost in 1980 * (Ratio of 2013 to 1980)

Cost in 2013 = $15 * (2.50/1)

Simplifying the multiplication, we get:

Cost in 2013 = $15 * 2.50

Calculating this, we find that the cost of jeans in 2013 would be $37.50.