2006-09-07 08:36:36 · 5 answers · asked by redheadsushi86 1 in Science & Mathematics ➔ Mathematics
x+y= 180 ..... lets you find that x = 180 - y
x= 2y+24 says "x is 24 more than 2y"
substitute in for x and this becomes
180 - y = 2y + 24
solve for y
3 y = 180 - 24 ..... give y = 52
substitute that value into the first equation and solve for x
x + 52 = 180 ..... x = 128
Aloha
2006-09-07 08:46:33 · answer #1 · answered by Anonymous · 2⤊ 0⤋
1) x+y=180
2) x=2y+24, by substitution
x=2(180-x)+24=384-2x
3x=384
x=128, y=52 Checking
128=24+2(52)=24+104=128 OK
By simultaneous equations subtract 2) from 1) giving
y=-2y+156
3y=156
y=52, x=128
2006-09-07 16:03:44 · answer #2 · answered by albert 5 · 0⤊ 0⤋
x + y = 180
x = 2y + 24
(2y + 24) + y = 180
2y + 24 + y = 180
3y + 24 = 180
y + 8 = 60
y = 52
x = 2(52) + 24
x = 104 + 24
x = 128
The anges are 52° and 128°
2006-09-07 21:04:40 · answer #3 · answered by Sherman81 6 · 0⤊ 0⤋
Girl what are you tlkin bout are you in your math class and needing help?
2006-09-07 15:38:15 · answer #4 · answered by josephz_blue_girl 1 · 0⤊ 0⤋
x+y=180
x=2y+24
x-2y=24
subtracting
3y=156
y=52
y=128
2006-09-07 15:39:26 · answer #5 · answered by raj 7 · 0⤊ 0⤋