Sara sold 461 tickets for a school play. Student tickets cost $3 and adult tickets cost $4. Sara’s sales totaled $1624.How many adult tickets and how many student tickets did Sara sell?

220 student tickets

241 adult tickets

Step-by-step explanation:

if we set x equal to student tickets and y equal to adult tickets, we get two equations: x+y=461 (total tickets sold) and 3x+4y=1624 (total profits).

we want to isolate a variable, so that we can solve for it. we can do that to either x or y, I chose to isolate y.

so, we take our first equation, x+y=461, and we multiply it by -3, because that will give us -3x-3y=-1383. we then add our new equation to our sales equation: 3x+4y-3x-3y=1624-1383, which leaves us with y=241, the number of adult tickets sold. we then plug that into our original tickets equation: x+241=461, and we solve for x by subtracting 241 from 461, giving us 220, the number of students tickets sold.

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.

6, 10

9, -13

12, -21

18, -23

step-by-step explanation:

you just add 6 to the x-coordinate and subtract 10 from the y-coordinate.