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mart [117]
3 years ago
13

I can't figure out this answer, can someone help?

Mathematics
1 answer:
raketka [301]3 years ago
8 0
To solve this problem, we need to know that the adjacent interior angles (2 and 5,  or 3 and 4) between two parallel lines are supplementary.
This means that ∠2+∠5 = 180 °

which means 
x+50 + 4x+30 = 180
collect similar terms and solve
5x + 80 = 180
5x = 180-80 = 100
x=20 °

∠2 = x+50 = 20+50 = 70 °

But ∠ 1 = ∠ 2  (vertical angles)
therefore
∠ 1 = 70 °

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SashulF [63]

Answer:

a = - 1

Step-by-step explanation:

Step 1:

6a + 5a = - 11        Equation

Step 2:

11a = - 11         Combine Like Terms

Step 3:

a = - 11 ÷ 11       Divide

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a = - 1

Hope This Helps :)

5 0
2 years ago
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From the set {6, 7, 11}, use substitution to determine which value of x makes the equation true.
kotykmax [81]
11 if you multiply 11 by both the number and and the variable you’ll get 11x-55=66. Add 55 to each side which will give you 121 then divide that by 11
3 0
3 years ago
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if the cost price of 10 tables is equal to the selling price of 16 tables , find out the gain or loss percentage​
Dovator [93]

Hi,

To solve this problem, Let us take the LCM of 10 and 16 which will come 80.

Now suppose the cost price of 10 tables =₹n CP of 80 tables will be ₹ 8n

According to the question, CP of 10 tables is equal to the SP of 16 tables, then

the SP of 16 tables will also be ₹ n.

So, SP of 80 tables will be ₹ 5n

So, Loss = CP-SP

→ 8n - 5n = ₹ 3n

Loss%= (3n×100)/8n

Loss%= 37.5%.

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4 0
3 years ago
PLEASE help me with this equation ​
Brilliant_brown [7]

Answer:

1/25

Step-by-step explanation:

I worked out the equation!

3 0
3 years ago
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Viefleur [7K]

Answer:

option 1 is equivalent to 3^2.3^5

4 0
2 years ago
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