The function p(x) = 2x +1 determines how many pizzas need to be purchased for an after school meeting, where x is the number of students at the meeting. The club leader uses r(p(x)) to find the amount of money to bring for the pizza purchase. The function r(x) = 4x − 3. Solve for how much money to bring when there are 9 students in the meeting.

19
33
73
84

Question

The function p(x) = 2x +1 determines how many pizzas need to be purchased for an after school meeting, where x is the number of students at the meeting. The club leader uses r(p(x)) to find the amount of money to bring for the pizza purchase. The function r(x) = 4x − 3. Solve for how much money to bring when there are 9 students in the meeting.

 19
 33
 73
 84

swaggyswags · Answer

@Will.H

will.h · Answer

73 is your answer do you need explanation?

swaggyswags · Answer

Yeah, just a quick one if it's all good with you

will.h · Answer

oh explantation lol okay first you plug in x =  9 in the function p(x) and then the value would be the new value of x in the function r(x) 
p(x) = 2 * 9 + 1 = 19 

p(rx) = 4 * 19 - 3= 73

swaggyswags · Answer

Alright sweet, thanks :)

swaggyswags · Answer

New question?

will.h · Answer

shoot

swaggyswags · Answer

Solve the following for y: −6x + 2y = 8

 y = −6x + 8
 y = 6x + 8
 y = −3x + 4
 y = 3x + 4

will.h · Answer

-6x + 2y = 8
2y = 6x + 8
y = 3x + 4

swaggyswags · Answer

Thanks dude, I appreciate the help :)

will.h · Answer

you welcome :)