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Lelu [443]
3 years ago
13

Solve this system of equations by using the elimination method. 2x - 2y = 2. 5x + 2y = 12 (2, [?])​

Mathematics
1 answer:
nalin [4]3 years ago
8 0

Answer:

(2,12)

Step-by-step explanation:

mathpapa

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A bank loaned out ​$​12,00, part of it at the rate of 9% per year and the rest at 19% per year. If the interest received in one
Crazy boy [7]

Answer:

$7,800 was invested at 9% and $4,200 at 19%.

Step-by-step explanation:

Given that a bank loaned out $ 12,000, part of it at the rate of 9% per year and the rest at 19% per year, if the interest received in one year totaled $ 1,500, to determine how much was loaned at 9% the following calculation must be performed:

12,000 x 0.09 + 0 x 0.19 = 1,080

10,000 x 0.09 + 2,000 x 0.19 = 1,280

8,000 x 0.09 + 4,000 x 0.19 = 1,480

7,900 x 0.09 + 4,100 x 0.19 = 1,490

7,800 x 0.09 + 4,200 x 0.19 = 1,500

Thus, $ 7,800 was invested at 9% and $ 4,200 at 19%.

6 0
3 years ago
What are the zeros of the function y = x2 + 10x – 171, and why?
vagabundo [1.1K]
To find the zeros, you have to factor the equation.
y=(x+19)(x-9)
This is because 19*-9=-171 and 19-9=10.
Now to make x=0, you have to make the equation
x+19=0
and x-9=0
To solve, isolate x on both equations.
This makes x=-19 and x=9.
5 0
3 years ago
|x|-13=-3 solve the equation​
galina1969 [7]

Answer:

x=10\\x=-10

Step-by-step explanation:

|x|-13=-3\\|x|=-3+13\\|x|=10

x=10\\x=-10

5 0
3 years ago
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Apply the distributive property to factor out the greatest common factor.<br> 15+21
frez [133]

Answer:

3(5 + 7)

GCF is 3

Step-by-step explanation:

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3 years ago
4÷92,222=<br><br> I will give brainiest
Svet_ta [14]

Answer:

1/5106

Step-by-step explanation:

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2 years ago
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