Question

A machine paints 340 toy boats in 45 minutes.Which expression equals the rate per hour?

Answer 1

The expression for rate per hour is
`(340)/(45)* 60`.

Step-by-step explanation:

Given:

A machine paints 340 toy boats in 45 minutes.

To Find:

Expression equals the rate per hour?

Solution:

Finding the expression for rate per minute:

`\text{{The rate per minute expression}} =\frac{\text{{ (number of toys painted in time given)}}}{\text{{(number of minutes taken)}}}`

So, rate per minute expression is
`((340 toys))/((45 minutes))` =
`(340)/(45)`

Then, rate per hour expression
`\text{{rate per minute}}* 60 minutes`

So, rate per hour expression is
`(340)/(45)*60 minutes`= 453.334 toys per hour.

Hence, the expression for rate per hour is
`(340)/(45)* 60`