So we have the equations:
y - 4x = 2 --- equation 1
5y - 2x = 1 --- equation 2
(equation 2) * 2
10y - 4x = 2 --- equation 3
(equation 2) - (equation 3)
-9y = 0 so y= 0 and thus x = -1/2
Hope that helps!
Answer:
40 problems in 100 minutes
Step-by-step explanation:
This is a ratio problem.
You first divide 30 minutes by three to get how many problems she can do in 10 minutes. What you do to one side you do to the other side. So then, you should have 4 problems in 10 minute. Then, you multiply 10 by 10 and 4 by 10 to get 40 problems in 100 minutes.
Answer:
:( help me on my question
Step-by-step explanation:
Answer:
A = 0
Step-by-step explanation:
3 times 0 =0
0 + 8 = 8
8 divided by 2 = 4
4 is less than 10
Answer:
ok so we need to find the percent so
8.46 divided by 42.3=0.2
she she tipped 20%
Hope This Helps!!!
