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Zina [86]
3 years ago
11

X + 5y = 8 -x + 2y = -1 How is this solved?

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
8 0
Add both the equations together to eliminate x

x+5y=8
-x+2y=-1

7y=7
y=1

Now fill in y into the original equation

x+5(1)=8
x+5=8
x=3

Now you can check by filling x and y into the second equation.

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

So your answer will be (3, 1)

Brainliest my answer if it helps you out?
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Answer:

The building is 187.5 feet tall.

Step-by-step explanation:

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A tall building casts a shadow that is 250 feet long. How tall is the building?*

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3 years ago
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Answer
—————————————-

3 0
2 years ago
What is 1\4 times 96
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7 0
3 years ago
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Which of these numbers is between 5/6 and 1?<br> (A) 4/5 <br> (B) 4/7 <br> (C)6/7
djverab [1.8K]
Two basic ways in which to do this problem:

1.  Find and apply the LCD.

2.  Convert all of the given numbers to their decimal form, to 2 or 3 places only.

Try #2 first:

5/6 = 0.83    

4/5 = 0.80 is not between 5/6 and 1.  Reject it.
4/7 = 0.57 Reject
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8 0
3 years ago
Am I correct? Please correct me if I'm wrong
laiz [17]

Answer:

Great job

Step-by-step explanation:

3 0
3 years ago
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