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Snowcat [4.5K]
3 years ago
7

Simplify the following expression: NEED HELP QUICK PLZ :(

Mathematics
1 answer:
Anna71 [15]3 years ago
5 0
The answer is B

-8y + 7y = -y

When the signs are different, subtract and take the sign of the bigger number.
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Rufina [12.5K]

I DO NOT KNOW JUST GIVE ME A SECOND.

6 0
3 years ago
If (a+10) and (a+20)are supplementary angles,find them​
motikmotik

Given:

(a+10) and (a+20) are supplementary

To find:

Each angle

Steps:

if 2 angles are supplementary that means they add up to 180°

(a + 10) + (a + 20) = 180

   a + 10 + a + 20 = 180

              2a + 30 = 180

                      2a = 180 - 30

                      2a = 150

                        a = 150/2

                        a = 75°

Now let's find value of each angle,

a + 10 = 75 + 10

          = 85°

a + 20 = 75 + 20

           = 95°

Therefore, the value of each angle is 85° and 95° respectively

Happy to help :)

If you need any help feel free to ask

4 0
2 years ago
How many tablespoons are in 1/2 cup
evablogger [386]

Answer:

8

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the solution to 4(x-1)-2(3x+5)=-3x-1
Margarita [4]

To solve this problem, we need to get the variable x alone on one side of the equation. To begin, we are going to use the distributive property twice on the left side of the equation to expand the multiplication and get rid of the parentheses.

4(x-1) - 2(3x + 5) = -3x -1

4x - 4 -6x - 10 = -3x - 1

Next, we should combine like terms on the left side of the equation. This means we should add/subtract the variable terms and the constant terms in order to simplify this equation further.

-2x - 14 = -3x - 1

Then, we have to add 3x to both sides of the equation to get the variable terms all on the left side of the equation.

x - 14 = -1

After that, we should add 14 to both sides of the equation to get the variable x alone one the left side of the equation.

x = 13

Therefore, the answer is 13.

Hope this helps!

4 0
3 years ago
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What is Q3 for this data set?
Kisachek [45]

The same as last time

Step-by-step explanation:

8 0
1 year ago
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