Question

PLEASE HELP I WILL FAN AND MEDAL!
The three Math Idol judges have been eliminating contestants all day! The number of one-step equations and two-step equations who have been eliminated today is equal to 1150. If three times the number of one-step equations minus twice the number of two-step equations is equal to 1300, how many one-step equations eliminated today?

430

720

1150

1300

Answer 1

Is the correct answer 720?

Answer 2

@Jamierox4ev3r

Answer 3

one-step equation will be represented by \(O\) and two-step equations will be represented by \(T\)

Answer 4

if you follow what the problem says, 3\(O\)-2\(T\)=1300

Answer 5

the answer is 720.

Answer 6

@FilthyMcNasty i was in the middle of explaining... -.-

Answer 7

solve for each variable and you will indeed get 720. This means that you are correct @aleximhappy08

Answer 8

x+y=1150
3x-2y=1300

y=-x+1150
3x-2(-x+1150)=1300
3x+2x-2300=1300
5x-2300=1300
+2300 +2300
5x=3600
x=720

Answer 9

Thanks!

Answer 10

i chose the variables O and T, but you could also use x and y if you want to make things easier. and no problem :)

Answer 11

:)