The answer to that question would be 14
Answer:
x=1/2, y=2;
Step-by-step explanation:
First pair:
2x-5y =-9
4x+5y=12
Add them together:
6x=3
x = 1/2
2(1/2) - 5y =-9
1-5y = -9
1+9=5y
y=10/5=2
Answer:
A
Step-by-step explanation:
He traveled at a rate of 60MPH
Answer:
Negative numbers
Step-by-step explanation:
Answer:
The order of operations
Step-by-step explanation:
you should do what is possible within parentheses first, then exponents, then multiplication and division (from left to right), and then addition and subtraction (from left to right). (Assuming your talking about algebra)