A. 2x+y=25; x+y=20
x represents cheese wafers and y represents chocolate wafers.
B. I will choose elimination since there is y and y. I can multiply one equation by -1 to get y and -y, which cancels out.
2x+y=25
-x-y=-20
Add equations
x=5
Plug x in
5+y=20
y=15
Final answer: 5 cheese wafers, 15 chocolate wafers
Answer:
x=6
Step-by-step explanation:
(x*3)+4=22
Subtracting 4 from both sides:
(x*3)=18
Dividing both sides by 3:
x=6
Hope this helps!
Answer:
The answer is 6
Step-by-step explanation:
42 divided by 7=6
Step-by-step explanation:
Miles travelled in 1h=66600
Miles travelled in 1 sec=66600/3600
=18.5miles
Miles travelled in 15 seconds =18.5×15
=<em><u>277.5miles</u></em>