You want to try and get rid of one of the variables ( x or y) so you would multiply the second equation by 2 which would make the x variable -2x which then when added to the first equation would eliminate the x variable.
Answer: c. Multiply the second equation by 2.
Answer:
B) 10
Step-by-step explanation:
4x+5=45
-5 -5
4x=40
/4 /4
x=10
Answer:
2625 pounds of leaves
Step-by-step explanation:
First, multiply 75 pounds by 7 days, AKA 75 pounds x Week
The answer to that is 525 pounds in a week.
The question asks to find how many pounds of leaves 5 giraffes can eat in a week.
So multiply 525 pounds by 5 giraffes, and you get 2625 pounds of leaves.
(3,6)
4x + y > 19
4(3) + 6 > 19
12 + 6 > 19
18 > 19
No
