Question

THIS SEEMS CONFUSING, ANY IDEASokokokokokok

Answer 1

i have an idea on how to solve but im not sure

Answer 2

yess.. their are multiple choices

Answer 3

what's your idea?

Answer 4

um............ i honestly have no clue. i need a head start please....

Answer 5

x is the number of students, so x = 9. They're asking for r(p(9)).

Answer 6

ok. sooo 9 = 4x − 3. 9+3=12 divide by 4 i get three. but its not one of the choices..... :/

Answer 7

r(p(9)) means plug 9 into the p(x) equation. Then plug that answer into the r(x) equation.

Start by finding p(9) by plugging in 9 for x in p(x).

Answer 8

r(x) is just the amount of money total, not for each student

Answer 9

im lose now..

Answer 10

lost

Answer 11

p(x) = 2x + 1
Substitute 9 for x
p(9) = 2(9) + 1

Answer 12

@nerlineg you're not solving for x. You're replacing it with a number

Answer 13

thats 19 @peachpi and that just gives you the amount of pizzas they need to order

Answer 14

9*2+1 = 18+1 = 19

Answer 15

2x +1 determines how many pizzas need to be purchased
they need to know how much money needs to be brought in so, wouldnt you put in 9 in the second function ?

Answer 16

p(9) = 19.
Now you need to find r(19) so put 19 into r(x)

Answer 17

@nerlineg does it grade it as soon as you put in the answer and hit submit?

Answer 18

no, it doesn't.

Answer 19

i did and i got 4

Answer 20

@peachpi i got 4

Answer 21

@nerlineg please show me how it looks when you change the x in r(x) to 19

Answer 22

how are you doing the math ? 4(19)=76-3=73

Answer 23

oh i plug it in, in the wrong one. but yes i got the same thing @dani_00 got...

Answer 24

just walking you through the steps @peachpi said

Answer 25

so... the answer 73 :)

Answer 26

yes 73

Answer 27

yep you got it

Answer 28

but this seem tricky. i had a hard time understanding it, but thanks to you two. :)

Answer 29

welcome

Answer 30

no problem

Answer 31

i have an idea to what to do next time seeing this :)