Step-by-step explanation:
for 15 =6
75=?(x)
15x=75×6
15x=450
x=450/15
x=30
Rob saved $30
2x + 9 = 5x - 12
2x - 5x = - 1- 9
- 3x = - 21
x = 21/3
x = 7
Y = 60°
It will take 9 minutes and 20 seconds.
There's 120 seconds in 2 minutes and divide it by 3 seconds you'll get 40 seconds for each photographs. 40*2=80
Answer:
x = 9
By remote exterior angle theorem:
-21
put in -3 where x is
-3^2 9
-9-12 = -21
