Answer:
C
Step-by-step explanation:
Given the 2 equations
3x + 4y = 8 → (1)
y - 5x = 2 ← rewrite as
- 5x + y = 2 → (2)
Multiplying (2) by - 4 and adding to (1) will eliminate the y- term
20x - 4y = - 8 → (3)
Add (1) and (3) term by term to eliminate y
23x + 0 = 0
23x = 0 , then
x = 0
Substitute x = 0 into either of the 2 equations and solve for y
Substituting into (1)
3(0) + 4y = 8
4y = 8 ( divide both sides by 4 )
y = 2
solution is (0, 2 )
That is the lines intersect once at (0, 2 )
You would do: 9+18+20=47-10=37
So your answer is 37
Answer:
I am pretty sure you meant 1 hour so the answer is
2
Step-by-step explanation:
Since we want one hour we can multiply 1/4 by 4 to get 1 since we multiplied 1.4 by 4 we need to multiply 1/2 by 4, so we get 2
Answer:
which 2 equations
Step-by-step explanation:
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need full information
Answer:
6
Step-by-step explanation:
