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3 years ago

Find the value of x.

Mathematics

2 answers:

maksim [4K]3 years ago

6 0

You have it right. The answer is 20.

Irina-Kira [14]3 years ago

5 0

The 2 angles are complementary angles and need to equal 90 degrees.

Making an equation we have:

4x-10 + x = 90 degrees

Add like tems:
4x +x = 5x

Now we have:
5x-10 = 90

Add 10 to both sides:

5x = 100

Divide both sides by 5:

x = 100/5

X = 20

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Please help can you also explain how you got it please

miss Akunina [59]

Answer:

Step-by-step explanation:

-14 + 2x + 3 = 4x - 13 - 7x

We can first add the numbers and coefficients on either side:

2x - 11 = -3x - 13

Then, we can add 3x to both sides:

5x - 11 = -13

We can add 11 to both sides

5x = -13 + 11 = -2

Lastly, we can divide both sides by 5

x = -2 / 5

4 0

3 years ago

Read 2 more answers

Simplify -3y+2x-5y-7x

Sphinxa [80]

<h3><em><u>Simplify -3y+2x-5y-7x is:</u></em></h3><h3>-8y - 5x</h3>

<em><u>Solution:</u></em>

<em><u>Given that, we have to simplify</u></em>

$-3y + 2x-5y-7x$

We can simplify the above expression by combining the like terms

Like terms are terms that has same variable ( with same exponent) with same or different coefficient

From given,

$-3y + 2x-5y-7x$

Here, like terms are -3y and -5y

And 2x and -7x

Group the like terms

$-3y-5y+2x-7x$

Combine the like terms

$-8y -5x$

Thus the given expression is simplified

6 0

3 years ago

Lynn wants to multiply 44 × 305. She says that all she has to do is find 4×305 and then double that number.

Lubov Fominskaja [6]

Answer C is correct because 2×(4×305) is the same as (2×4)×305 and 2×4=8.

5 0

3 years ago

Learn with an example<br> Find the perimeter. Simplify your answer.<br> y-6<br> y-5<br> y-5<br> y-6

koban [17]

Answer:

P = 22

Step-by-step explanation:

P= l(2) + w(2)

5(2) + 6(2)

10 + `12

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3 years ago

3/10+4/100+9/1000 as a decimal

Kipish [7]

Answer:

0.349

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers