Answer: 160
Step-by-step explanation:
So first you start by making the percent which is 20 a decimal (.20) . Then , you multiplu .20 by 800 and get 160 , or if you know 10% is 80 2 times that would be 20 percent . And 80 plus 80 is 160 .
Answer:
The answers are:
1. C
2.D
3. A
4. C
5. D
6. A
Answer is the third one. It is the only answer where all points work in the equation.
Answer: third choice
x= 9 y=2
Add up the equations vertically to eliminate y.
-x=-9
change the signs:
x=9
substitute the given value of x into the equation 2x-4y=10
2(9)-4y=10
18-4y=10
4y=8
y=2
