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navik [9.2K]
2 years ago
8

Solve the system of equations by adding. checking your answer

Mathematics
1 answer:
Brut [27]2 years ago
3 0

Answer:

Step-by-step explanation:

This is very easy, because the coefficients of the y terms are 2 and -2. You can easily eliminate the y terms by adding the equations together:

2x + 2y = 2

3x - 2y = 43

-----------------

5x + 0y = 45,  so x = 9

Use the value of x to solve for  y:

2(9) + 2y = 2

y = -8

(x,y) = (2, -8)

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Answer:

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2 years ago
Yousuf buys a pen that cost AED 2.12. How much will 4 such pen cost? GUYS PLEASE QUICK I HAVE AN EXAM RN
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How can you be sure that 0.47 ÷ 1,000 = 0.00047?
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I believe that it is A. It is the only one that makes sense. If you look at numbers 0.47 and 0.00047, the decimal point in 0.00047 is three more spaces to the left than 0.47. Hope this helps!

5 0
3 years ago
A manufacturing process produces integrated circuit chips. Over the long run the fraction of bad chips produced by the process i
Vitek1552 [10]

Answer:

0.0244 (2.44%)

Step-by-step explanation:

defining the event T= the chips passes the tests , then

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for conditional probability we can use the theorem of Bayes. If we define the event D=the chip was defective , then

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where

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5 0
3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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