Question

Suppose that 11 inches of wire costs 33 cents.

At the same rate how many inches of wire can be bought for 15 cents
I inches
x
9
?

Answer 1

Answer: The answer is 4 inches.

Step-by-step explanation: We'll first find how much each inch of wire costs.

We're told that inches cost cents, so each inch costs

cents.

To find how many inches of wire can be bought for cents, we divide by .

12 divided by 3 = 4

Answer 2

5 inches

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:

`(11)/(33)=(x)/(15)`

Now we cross multiply and solve for x:

`(11)/(33)=(x)/(15)\\33x=11*15\\33x=165\\x=(165)/(33)\\x=5`

Thus, we can buy 5 inches for 15 cents.