Quinton has an average resting heart rate of 70 beats per minute. When he runs, his heart rate increases by fewer than 50 beats per minute. If b represents his heart rate while running, which statements about the scenario are true? Check all that apply. The inequality b + 50 less-than 70 can be used to represent the situation. The inequality b minus 70 less-than 50 can be used to represent the situation. The graph of the solution set will be shaded to the left. A possible value for b is 120. A possible value for b is 140.

13875138answer:

step-by-step explanation:

use a calculator!

your answer is the frist one

hop i

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