a machine paints 340 toy boats in 45 minutes which expression equals the unit rate per hour

Very simple, 340/45 which equals 7.5

Then 7.5 * 60 = 453.3 Glad I could help :)

To find the unit rate per hour, we can set up a proportion using the given information. Let's start by converting the 45 minutes to hours.

There are 60 minutes in 1 hour, so 45 minutes is equivalent to 45/60 = 0.75 hours.

Now, we can set up the proportion:

Number of toy boats / Time (in hours) = Unit rate per hour

340 toy boats / 0.75 hours = Unit rate per hour

To simplify the expression, we divide the number of toy boats by the time in hours:

340 / 0.75 = 453.33

Therefore, the unit rate per hour is 453.33 toy boats per hour.

THANKYOU