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melomori [17]
2 years ago
7

Find the value of x and y.

Mathematics
2 answers:
weqwewe [10]2 years ago
7 0

Answer:

x=80

y=40

Step-by-step explanation:

angle in a triangle=180

x+50+50=180

x=180-100

=80

y+unknown+100=180

y+unknown=80

y=80÷2

y=40

emmasim [6.3K]2 years ago
3 0

Answer:

x=100 degrees

y=50 degrees

size doesn't cange angles

Step-by-step explanation:

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The plane that contains points C and T can also be named plane...
Mnenie [13.5K]

Answer:

  A)  CUB

Step-by-step explanation:

Of the suggested planes, only CUB contains both points C and T.

___

<em>Comments on the other answer choices</em>

BED contains point T, but not C

ACE contains point C, but not T

ABE contains neither C nor T

6 0
3 years ago
At the zoo on monday, 65 percent of the people in attendance were children. if 520 children were in attendance, how many people
inna [77]
Children = .65 * people
people = 520 / .65
800 people were in attendance

7 0
3 years ago
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QRST is a parallelogram. Find x and y.
Wewaii [24]

In parallelograms, opposite sides are congruent, meaning that they are the same lengths. So, we have:

y - 4x = 9

-x + 4 = y

Add x to both sides of the second equation:

y + x = 4

y - 4x = 9

This is a system of linear equations. Solve by eliminating the y and subtracting the two equations:

5x = -5

x = -1

Use x to solve for y:

y + (-1) = 4

y = 5

So, x = -1 and y = 5.

5 0
3 years ago
Please help me out The equation 9(w + 7) = 27 solved in several steps below. For each step, choose the reason that best justifie
Vaselesa [24]
9w+63=27

27-63= -36

-36•/•9=-4

answer: -4=w

hope this helps
4 0
3 years ago
Question 1: An online music store is offering a promotion. When you spend $30 or more, you receive 3 songs for free. You buy an
ch4aika [34]

Answer:

10 + m  ≥ 30

You must spend AT MOST $20 or more

Step-by-step explanation:

Basically you have already spent 10 dollars and you have to pay MORE than or equal to 30. You cannot pay less than because you want the free songs. So the sign has to be  ≥ or the inequality will not be true.

10 + m  ≥ 30

10 - 10 + m  ≥ 30 - 10     ( subtract 10 from each side to isolate m)

m  ≥ 20     ( we are left with this )

The answer is :

m  ≥ 20

You must spend at most 20 dollars more to get the 3 free cd's. Your welcome :D

5 0
3 years ago
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