Question

Suppose that 11 inches of wire costs 33 cents.

Answer 1

Answer:

5 inches

Step-by-step explanation:

11 inches cost 33 cents

x inches cost 15 cents

Note: we let what we are looking for (inches) be "x"

Now, we can set up two ratios (fractions) and equate them to find the inches we can buy for 15 cents.

The set up:

$\frac{11}{33}=\frac{x}{15}$

Now we cross multiply and solve for x:

$\frac{11}{33}=\frac{x}{15}\\33x=11*15\\33x=165\\x=\frac{165}{33}\\x=5$

Thus, we can buy 5 inches for 15 cents.