Mrs. Huang found the mean and mean absolute deviation (MAD) of the latest test scores for two of her classes. Class A had a mean of 73 and Class B had a mean of 85. Both classes had a MAD of 4. What it the difference of the means as a multiple of the MAD? The difference of the means is
.

The MAD of both Class A and Class B is
.

The difference of the means is
times the MAD.

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

d no solution

step-by-step explanation:

y=-2x+1500

step-by-step explanation:

+1500

2 over one