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2 answers:
Answer:
( -1,7)
Step-by-step explanation:
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Answer:
The answer would be (-1,7)
Step-by-step explanation:
Using the process of elimination we can subtract the two equations to cancel out the y variable. That is subtract the second equation from the first.
3x + y = 4
<u>- 2x + y = 5</u>
<u> x = -1</u>
Now that we have found x we can substitute -1 for x into any equation for y. So, in substituting -1 for x in the second equation we get:
2(-1) + y = 5
-2 + y = 5
y = 5 + 2
y = 7
ANSWER: (-1, 7)
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The original price is 260
2*125+10 please mark me brainliest
Answer:
Step-by-step explanation:
y*1/x
y=k/x where k is the constant of variation
when y=7, x=-4
7=k/-4
k=-28
when x=5
y=-28/5
note: * is used as symbol of variation
Answer:
y = -5
Step-by-step explanation:
Isolate y:
-3x + 9y = -57
9y = -57 + 3x
y = (-57/9) + (3/9)x
Substitute for x:
y = (-57/9) + (3/9)(4)
y = (-57/9) + (12/9)
y = (-45/9)
y = -5
Answer:
1/4
-1/3+1/3 cancels each other
Step-by-step explanation:
