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NeX [460]
2 years ago
6

DUE TODAY PLZ HELP!!

Mathematics
1 answer:
Gnoma [55]2 years ago
3 0

The solution to the system of equations expressed as a coordinate point is (x.y)=(-1,1)

To solve the system

3x + y = -2\\y = 2x + 3

Note that y is already made subject of formula in y = 2x + 3. So substitute the value for y into 3x + y = -2 to eliminate y and leave us with an equation with x

3x + y = -2\\3x + (2x+3) = -2\\3x+2x+3=-2\\3x+2x=-2-3\\5x=-5\\\frac{5x}{5}=\frac{-5}{5}\\x=-1

Substitute this value of x into y = 2x + 3 to get the value of y

y = 2(-1) + 3\\y=-2+3\\y=1

The solutions are x=-1,y=1, or expressed as a coordinate point

(x.y)=(-1,1)

Learn more about systems of equations here: brainly.com/question/16763389

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Answer:

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Step-by-step explanation:

Let the total amount in the bowl be x;

If on Day 1, the volume of water in the bowl decreases by 7/8 cup, the remaining water will be;

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If on day 2, the volume in the bowl decreases by 3/4 cup, the remaining volume of water after the second day will be;

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This shows that the total change after the two days is -13/8

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