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Otrada [13]
3 years ago
14

Please help me on this one

Mathematics
1 answer:
Marina CMI [18]3 years ago
3 0
It’s c, 4 divided by 4 is .25 which gives you a 25 percent chance to get either
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Which ordered pair represents the solution to the system of equations? {−5x+7y=−196x−2y=10
k0ka [10]
Answer:
x = 1
y = -2

Explanation:
First, solve for x by subtracting 7y from both sides of the first equation and then divide both sides by -5.

-5x + 7y = -19
-5x + 7y - 7y = -19 - 7y
-5x = -19 - 7y
-5x/ -5 = -19 - 7y/ -5
x = -19 - 7y/ -5

Next, substitute the value of x into the second equation and solve.

6 - (-19 - 7y)/ 5 - 2y = 10
- 6(-19 - 7y)/ 5 - 2y = 10

Then, solve for y

- 6(-19 - 7y)/ 5 - 2y = 10
-6(-19 - 7y) - 10y = 50
114 + 42y - 10y = 50
144 + 32y = 50
32y = 50 - 144
32y = -64
32y/ 32 = -64/ 32
y = -2

Finally, substitute the value of y into the x value we found earlier and solve

x = - 19 - 7y/ 5
x = - 19 - 7 • -2/ 5
x = 1
8 0
3 years ago
What is the soulution of the equation 3(2x+5)=3x+4
lakkis [162]

x=-\frac{11}{3}

or

x=-3.666666666666666666666666666666666666666666666

8 0
3 years ago
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Easy maths ~ Expand and simplify these brackets branliest going and 20 points
MrMuchimi

Answer:

a)

2(x+1) +3 (x+2)

2x +2 + 3x +6

5x + 8

b)

4(x+3) +2(x +7)

4x+12 + 2x +14

6x+26

c)

5(x+3) +2(x+7)

5x+15 +2x+14

7x +29

d)

8(x+10) +2(x+4)

8x+80 +2x+8

10x+88

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
4
Bezzdna [24]

9514 1404 393

Answer:

  y = 750 -100x

Step-by-step explanation:

The initial remaining balance is 750. The balance decreases by 100 per month, so is reduced by 100x. The equation describing this is ...

  y = 750 -100x

4 0
2 years ago
Question shown in image. Worth 100 points
SpyIntel [72]

Answer:

75 degrees

Step-by-step explanation:

The corresponding angle is 75 degrees

6 0
2 years ago
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