Two angles are supplementary when they <span>add up to 180 degrees </span>⇒
m∠1 + m∠2 = 180°
4y + 7 + 9y + 4 = 180
13y + 11 = 180
13y = 180 - 11
13y = 169
y = 169/13
y = 13
m∠2 = 9y + 4 = 9 * 13 + 4 = 121°
Answer:
7.50 cheaper than buying individually
Step-by-step explanation:
13.50/6=2.25
3.50*6=21.00
21.00-13.50= 7.50
Answer:
6
Step-by-step explanation:
5/6 of 30 = ?
5 x
---- = ----
6 36
36 x 5 = 180
180/6 = 30
That means 30 singers are boys.
36 - 30 = 6 (the number of girls)
Answer:N<-12
Step-by-step explanation:
5+2n<-19
Subtract 5 from both sides
2n< -24
Then divide both sides by two
N<-12
