(1 pts) 7) Write the statement as an equation and solve:
If John delivered three fewer pizzas than Sue and together they delivered 31 pizzas, how many
pizzas did Sue deliver?
O X+X-3 = 31; Sue delivered 14
pizzas
X+ 3 = 31; Sue delivered 28
pizzas
O X - 3 = 31; Sue delivered 34
pizzas
O x + x - 3 = 31; Sue delivered 17
pizzas
8) Solve: x= 40 (1pts)

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x