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3 years ago

How to solve r/10+4=5

Mathematics

2 answers:

11Alexandr11 [23.1K]3 years ago

6 0

do you want to know what "r" stands for

slega [8]3 years ago

3 0

You subtract 4 from each side and get 1 then you multiply by 10 and get r=10

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What is the value of n?

bogdanovich [222]

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>

$\gamma=95^o$

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

8 0

2 years ago

Read 2 more answers

Can someone please help me

Kipish [7]

Answer:

A) 23cm.

B) 32.0625 square cm.

Step-by-step explanation:

<u>Perimeter:</u> Just add all the sides together like so:

4.75x2 + 6.75x2 = 23cm.

<u>Area:</u> Multiply the base and height together:

4.75 x 6.75 = 32.0625 square cm.

6 0

2 years ago

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If ⅙ of a roll of wallpaper covers ¼ of the wall. How many rolls of paper are needed to cover 4 walls?

AVprozaik [17]

Answer:

if 1/6 of a roll of paper covers 1/4 of a wall, this means that we will need 4/6 of a roll to cover a whole wall, now the question is asking how many rolls will we need to cover 4 walls, we already know that it takes 4/6 to fill one wall so if we add 4/6+4/6+4/6+4/6 we will get 16/6 or 2 4/6

we will need 16/6 or 2 4/6 of rolls of paper to cover 4 walls

5 0

2 years ago

(X^3-7x+4)+(2x+x-10)

lana66690 [7]

The answer is x^3-4x-6.

4 0

3 years ago

Identify the median for the data of Johnny’s test scores: 92, 96, 97, 83, 92, 58, 93, 88, 77, 48, 65, 80, 71

Anastasy [175]

Answer

The median is 83

Step-by-step explanation:

You must put the scores in order to find median.

48, 58, 65, 71, 77, 80, 83, 88, 92, 92, 93, 96, 97

Then you find the number that is in the exact middle of the list.

In this case the median (middle number) is 83

4 0

3 years ago