First, add. 11/10 + 23/10 = 34/10
You can then simplify by finding the greatest common factor (2)
34/2, 10/2 = 17/5, or 3 and 2/5
Andrei is 3 and 2/5 meters tall
Answer: 30
Step-by-step explanation: Before Joe had $45 in total, He then spent it on a movie which is $15. So $45-$15=30
2x + 4 = x^2 + x - 2
x^2 + x - 2 - 4 - 2x = 0
x^2 - x - 6 = 0
(x - 3)(x + 2) = 0
x - 3 = 0 y = 2x + 4
x = 3 y = 2(3) + 4
y = 10
x + 2 = 0 y = 2x + 4
x = -2 y = 2(-2) + 4
y = 0
solutions are : (3,10) and (-2,0) <===
So first 180-70=110
second 360-110-90-90=360-290=70
