If angle 1 and angle 2 form a linear pair, what are their measures??
2006-09-19 14:42:47 · 4 answers · asked by lynnette o 1 in Science & Mathematics ➔ Mathematics
x = measure of angle 1
y = measure of angle 2
x+ y = 180
x = 4y - 5
substitute (4y - 5) for x in the first equation
4y - 5 + y = 180
Now, combine terms:
5y - 5 = 180
now add 5 to both sides
5y = 180
now divide both sides by 5
y = 36
now substitute 36 for 1 in the first equation
x + 36 = 180
now subtract 36 from both sides
x = 144
so the first angle has 144 degrees and the second angle has 36 degrees
2006-09-19 14:54:46 · answer #1 · answered by Marcella S 5 · 0⤊ 0⤋
A = 4B - 5
A + B = 180
(4B - 5) + B = 180
4B - 5 + B = 180
5B - 5 = 180
5B = 185
B = 37
A = 4(37) - 5 = 148 - 5 = 143
ANS : 37° and 143°
2006-09-19 14:50:32 · answer #2 · answered by Sherman81 6 · 1⤊ 0⤋
alpha + beta = 180
4beta -5 + beta =180
5 beta = 185
beta = 37
alha = 143
2006-09-19 14:47:15 · answer #3 · answered by oracle 5 · 0⤊ 0⤋
$1.98
2006-09-19 14:50:16 · answer #4 · answered by Anonymous · 0⤊ 0⤋