A machine paints 340 toy boats in 2 hours. Which expression equals the unit rate per hour and minute?

60

minutes

=

3

4

hours

Step-by-step explanation:

Since we are asked to find the unit rate per hour, we must convert the minutes given into hours.

45

minutes

⋅

1

hour

60

minutes

=

3

4

hours

Now, we simply put the number of toy boats given in the problem over the total amount of time (in hours) required to paint them. Thus, our final answer is:

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

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step-by-step explanation: