Answer:80
Step-by-step explanation: and its ok if its not 71 points
Answer:
x=-2.5
Step-by-step explanation:
3x-12+7=5x
-5=2x
-2.5=x
Answer:
(0, -10/3)
the -10 is over the 3 in the form of a fraction
Answer:
The solution to this system is (4, 1/6).
Step-by-step explanation:
Please separate these two equations for clarity. I like to write them in column format:
2.5y + 3x = 27
5x – 2.5y = 5
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8x = 32, and x = 4.
Subbing 4 for x in the second equation yields 5(4) - 2.5y = 5.
Then 20 - 2.5y = 5, or 15 = 2.5y. Solving for y, we get y = 1/6.
The solution to this system is thus (4, 1/6).
Answer:
2. you can use the formula y2-y1/x2-x1
4-(-6)/1-(-2) = 10/3
