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3 years ago

What is the value of n?

Mathematics

2 answers:

bogdanovich [222]3 years ago

8 0

Answer:

Step-by-step explanation:

Look at the picture.

We know: Angles on one side of a straight line always add to 180°.

Therefore:

$\alpha=180^o-142^o=38^o\\\\\beta=180^o-133^o=47^o$

We know: the sum of the measures of the angles of the triangle is equal to 180 °.

Therefore:

$\gamma+47^o+38^o=180^o$

$\gamma+85^o=180^o$ <em>subtract 85° from both sides</em>

$\gamma=95^o$

$n^o+95^o=180^o\to n^o=180^o-95^o=85^o$

Triss [41]3 years ago

3 0

Answer:

Step-by-step explanation:

n+142=180(angle on a straight line)

n=180-142

n=38

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Tourists from a tour bus were asked about places they visited during their stay in a city. The results are shown in the table.

nlexa [21]

<span>Given:

visited museum   didn't visit museum Total

visited zoo 9   14 23

didn't visit zoo   5 2 7

Total 14 16 30

Simply look at the table and check the number that corresponds to visitors who visited the museum but did not visit the zoo. The number is 5.
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3 years ago

What does the simple interest stand for? Interest = Principal x Rate x Time Interest = Per unit x Rate x Time Interest = Price x

ValentinkaMS [17]

9514 1404 393

Answer:

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3 years ago

The local newspaper has letters to the editor from 70 people. If this number represents 5% of all of the newspaper's readers, h

Alex Ar [27]

Answer:

This shows us that there are 1400 readers.

Step-by-step explanation:

To work this out you would first need to find how many times 5% goes into 100%, You can do this by dividing 100 by 5, this gives you 20. This is because the whole amount is equivalent to 100%.

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1) Divide 100 by 5.

$100/5=20$