Joni sold 376 tickets for the school play. Student tickets cost $4 and adult tickets cost $7. Joni's sales totaled $2080. Which system of equations below will determine then number of adult tickets, a, and the number of student tickets, s, that Joni sold? Your Answers:
1.4s+7a=376
s+a=376
2.4s+7a=2080
s+a=2080
3.4s+7q=2080
s+a =280
4.s+7a=2080
4s+a=376​

true

step-by-step explanation:

they are simplified

step-by-step explanation:

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right