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3 years ago

15

Find the solution to the system. Write your solution as an ordered pair (x,y) with no spaces, no solution, or infinitely many. 3

x-2y=9 and x-y=5

1 answer:

nexus9112 [7]3 years ago

7 0

Answer:

(-1,-6)

Step-by-step explanation:

Use substitution

y=x-5

3x-2(x-5)=9

3x-2x+10=9

x=-1

Plug it in

(-1)-y=5

-y=6

y=-6

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In a class of strength 60, 75% like to become teachers. how manu dont like to be teachers?

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3 years ago

How to subtract hexadecimal number when one is bigger than the other?

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3 years ago

You purchased 8 pounds 10 ounces of candy from a candy shop. You want to split it equally among 3 classrooms at a local school.

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4 years ago

Read 2 more answers

Linda calculated that the saucer for her teacup has an area of 50.24 square centimeters. What is the saucer's circumference?

Brilliant_brown [7]

Answer:

The saucer's circumference is <u>25.12 centimeter</u>.

Step-by-step explanation:

Given:

Linda calculated that the saucer for her tea cup has an area of 50.24 square centimeters.

Use 3.14 for π.

Now, to find the saucer's circumference.

So, we get the radius first by putting the formula of area:

Area = 50.24 square centimeters.

Let radius be $r.$

$Area = \pi r^2.$

$Area = \pi\times r^2.$

As given we use 3.14 for π.

$50.24 = 3.14\times r^2.$

<em>Dividing both sides by 3.14 we get:</em>

$16=r^2.$

<em>Using square root on both sides we get:</em>

$4=r$

$r=4$

Thus, the radius = 4 centimeters.

Now, to get the circumference we put formula:

$Circumference=2\pi r$

$Circumference=2\times \pi \times r$

$Circumference=2\times 3.14\times 4$

$Circumference=25.12$

Circumference = 25.12 centimeter.

Therefore, the saucer's circumference is 25.12 centimeter.

3 0

4 years ago