A machine makes 240 paper clips in 60 seconds. What is this machine’s unit rate of paper clip production?

This machine's unit rate of paper clip production is 4 paper clips a second.

Step-by-step explanation:

The unit rate is how many paper clips a second.

For 240 paper clips, it takes 60 seconds.

240/60 = 4

4 paper clips a second.

d

step-by-step explanation:

given

y + 3 = - 4(x - 2) ← distribute the parenthesis

y + 3 = - 4x + 8 ( subtract 3 from both sides )

y = - 4x + 5 → d

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have