3 years ago

Solve for x and y simultaneously if:x+4=2y and y2-xy+21=0

Mathematics

1 answer:

salantis [7]3 years ago

5 0

Answer:

Step-by-step explanation:

x=−10, y=−3

x=10, y=7

y=7,x=10

y=−3,x=−10

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DENIUS [597]

Answer:

Hope this helps

4 0

3 years ago

What’s the answer to the question mark

melamori03 [73]

The missing number is 20

<h3>How to determine the number</h3>

We can see that the values at the top must be made equal to that at the bottom

For the top, we have

30 + 11 = 41

For the bottom, we should have:

21 + x = 41

Now, let's solve for 'x' to determine the missing figure;

21 + x = 41

collect like terms

x = 41 - 21

x = 20

Thus, the missing number is 20

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6 0

2 years ago

Solve problems <br>5 1/2×3 1/3

makvit [3.9K]

5 1/2 X 3 1/3=18 1/3

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3 years ago

Reasonableness use the clues to solve the riddle. I am between 24 and 34. you say my name when you count by twos from zero. You

mamaluj [8]

You are 30 years old

4 0

3 years ago

#6 You want to find out what type of pet is most commonly adopted from the shelter. Over the course of a month, you randomly sur

DochEvi [55]

Answer:

we predict 2,587 persons will adopt dogs

Step-by-step explanation:

out of 40 persons 23 adopt dogs

Then

out of 40×25 persons 23×25 adopt dogs

Then

out of 1000 persons 575 adopt dogs

Then

out of 1000×4.5persons 575×4.5 adopt dogs

Then

out of 4,500 persons 2,587.5 adopt dogs

Method 2 :

Let x Ben the number of persons we predict they will adopt dogs:

Here we have a proportional relationship:

Then

$\frac{4500}{40} =\frac{x}{23}$

$\Longleftrightarrow x = \frac{4500\times 23}{40} =2587.5$

3 0

3 years ago

Solve for x and y simultaneously if:x+4=2y and y2-xy+21=0​

Solve for x and y simultaneously if:x+4=2y and y2-xy+21=0