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nadya68 [22]
2 years ago
6

Solve the systems of equations. y=x + 3 y = -x + 1 x = ??? y = ???

Mathematics
1 answer:
riadik2000 [5.3K]2 years ago
6 0

Answer:

x = -1

Step-by-step explanation:

-1 + 3 = 2

-(-1) + 1 = 2 or 1 + 1 = 2

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Alaina has 7 in her bank account and earns 6 each day . joel has 48 in his banck account and earn 8 earch day in how many days w
Elis [28]

Answer:

I think you wrote something wrong.

Step-by-step explanation:

If Alaina has $7 in her bank account and Joel had $48 in his Joel already has more then Alaina but I will attempt to teach you how to solve these types of problems.

for this example I'm giving Alaina 79 dollars.

First we know were starting with 79 dollars and increasing 6 dollars each day so the equation for this is; y = 6x + 79 that is Alaina's equation.

For Joel our equation will be; y = 8x + 48.

Since they already have 79 and 48 dollars in their bank we put those as our B in the equation cause they are our y-intercepts. (Y = mx + b) Next we know their increasing by 6 and 8 dollars a day so we make those our m. Once we have these equations we can plot them and see where the lines meet. (thats our answer) I plotted them on desmos graphing calculator.

They crossed at (15.5, 172) Which means it will take 16 days for Joel to catch up they will both have 172 dollars in the bank account on the 16th day.

Hope this helps!

8 0
2 years ago
Evaluate y = 9 * (5/2)^x for x = -3.
dem82 [27]
You can find your answer by just substituting -3 for x......
6 0
3 years ago
HelppppppppppppppkK!!!!!!!
Dima020 [189]

Answer:

Yes how can i help u

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8 0
2 years ago
What is the decimal 80.6666667 as a fraction?
yuradex [85]
It would be:

80\frac{6666667}{10000000}

hope this helps

8 0
3 years ago
The area of this circle is 42π m².
kondor19780726 [428]
A full circle is 360°, so a 60° circle is 1/6th of the area.

1/6th of 42π m² is 7<span>π m², so answer B.</span>
4 0
3 years ago
Read 2 more answers
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