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seropon [69]
2 years ago
13

Please help I’m not good at triangle angles

Mathematics
1 answer:
wlad13 [49]2 years ago
6 0

Answer:

Step-by-step explanation:

Two of the angles are just numbers and you add them.

The third is a term and you add it along with the other two.

The total is always 180 for a triangle.

80 + 58 + 5x - 3 = 180

138 + 5x - 3 = 180              Combine on the left

135 + 5x = 180                   Subtract 135 from both sides

5x = 180 - 135                    Combine the right

5x = 45                               Divide by 5

x = 9

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Xelga [282]
The answer would be 10. Explanation: So basically you add the two complementary angles and set it equal to the whole thing. So it would look like 4x+46=7x+16. Then, you have to solve for x. To do that, subtract the 4x from both sides and the 16 from both sides. That will leave you with 3x=30. Then, divide by 3, and you get an answer of 10. Hope that helped :)
6 0
3 years ago
At 3 a.M. The temperature is -5 degrees Fahrenheit between 3 a.M. And 6 a.M. The temperature dropped by 12 degrees Fahrenheit be
LuckyWell [14K]

What I would do is subtract 12 from -5. Then you would have -17. Then you would add 4 and it would be -13. So your answer is:

<h2><em>-13</em></h2>

8 0
3 years ago
Read 2 more answers
Factor completely<br><br> 20x^2 y - 4xy<br><br> Someone put steps for me when solving, thank you
zavuch27 [327]

20x^2y - 4xy

First, we look at what terms are common between each term.

There is a 4 present in the last term, and 4 is a factor of 20, so that is one factor.

Each term also includes at least one x, and one y, so x and y are also factors.

We can factor a 4, an x, and a y out of this.

<h3><u>4xy(5x - 1) is the fully factored form of this binomial. </u></h3>
8 0
3 years ago
Read 2 more answers
The distance from Wakefield to London is 180 miles. A train travels this distance in 2 hours 15 minutes. Calculate the average s
Readme [11.4K]

Answer:

v = 80 mph

Step-by-step explanation:

Given that,

The distance from Wakefield to London is 180 miles.

The train travels this distance in 2 hours 15 minutes.

We need to find the average speed of the train. The average speed of the train is equal to the total distance covered divided by the time taken.

v=\dfrac{d}{t}\\\\v=\dfrac{180\ miles}{(2+\dfrac{15}{60})\ h}\\\\v=80\ mph

So, the required average speed of the train is 80 mph.

4 0
2 years ago
PLS HELP ASAP I NEED THIS
crimeas [40]

Answer:

D

Step-by-step explanation:

Firstly let's see definition of Rational numbers ,

<u>Rational</u><u> numbers</u><u> </u><u>:</u><u>-</u><u> </u>

  • The number in the form of p/ q where p and q are integers and q is not equal to zero is called a Rational number .

From the options , look at option D ,its

→ √400

→ √{20²}

→ 20

<h3>Hence option D is correct.</h3>
6 0
3 years ago
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