John buys some boxes of pencils and some packets of pens for people to use at a conference.

there are 40 pencils in a box.

there are 15 pens in a packet.

john gives one pencil and one pen for each person at a conference.

he has no pencils or pens left.

how many boxes of pencils and how many packets of pens did john buy?

3x + 18 = 147°

step-by-step explanation:

3x + 18 = 147°, because the value of the central angle is equal to the value of the arc formed by it.

i hope i you.

constant of proportionality = 3 and the equation is c = 3p.

step-by-step explanation:

c = kp   where c = amount of caffeine in mg., p = oz of pepsi and k is the constant of proportionality.

substituting the values given:

24 = 8k

k = 3.

the same value of k will be obtained if we substitute the other given values.

the equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept.