X = 22o
30 + 20 + 3x + 20 + 2x = 180
=> x = 110/5 = 22
Answer:
7. 69
Step-by-step explanation:
6x+3(x-7) when x=10
6(10)+3(10)-21
60+30-21
90-21
69
Answer:
d. 5250 pounds
Step-by-step explanation:
25 lbs per day
There are 30 days in april
25 lbs/ day * 30 days
1 tiger would eat 750 lbs
There are 7 tigers
7 * 750 =5250 lbs
Answer:
The variable y is eliminated.
Step-by-step explanation:
To add a system of equations, we add the common terms. x with x, y with y and values with values.
In this question:
5x + 6y = 32
5x – 6y = 8
Adding:
5x + 5x + 6y - 6y = 32 + 8
10x = 40
So the variable y is eliminated.
