Ron wants to deliver a package to his friend. he is considering two courier services to do the job. the first courier service is charging a flat fee of $15 plus $3 per pound of the package’s weight.

the second courier service is charging a flat fee of $25 plus $2 per pound of the package’s weight.

the costs of the two courier services are shown in the graph below.

what must the package weigh for the costs of the two courier services to be the same?
a.
8
b.
10
c.
14
d.
12
reset next question

i will pick c put check it over to be sure

step-by-step explanation:

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."