3 years ago

5x + 10 = 20

Mathematics

1 answer:

Andrei [34K]3 years ago

4 0

To solve for x, we must first isolate the term containing x which in this problem is 5x.

Since 10 is being added to 5x, we subtract 10 from both sides of the equation to isolate the 5x.

On the left, the +10 and -10 cancel out and on the right, 20 - 10 is 10 and we have 5x = 10.

Now we can finish things off by just dividing both sides of the equation by 5. On the left the 5's cancel and on the right, 10 divided by 5 is 2 so x = 2.

You might be interested in

Factor $-2.8$ out of $-16.8m-11.2$ .

Talja [164]

-2.8(6m + 4) that is the answer

7 0

2 years ago

an electrician charges an initial fee of $250 plus and hourly fee of $25. Mr.Scott paid the electrician $400. How many hours did

mixas84 [53]

Answer:

The plumber worked for 6 hours.

Step-by-step explanation:

400-250=150

150/25=6

5 0

2 years ago

A mayoral candidate would like to know her residents’ views on a public open space before the mayoral debates. She asks only the

Paraphin [41]

Answer:

convenience sample

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

If two angles have the same angle measure, then they are said to be____.

Sergio [31]

Answer:

Step-by-step explanation:

2 equal angles are said to be congruent

4 0

2 years ago

Read 2 more answers

HELP URGENT BRAINLIEST

nadya68 [22]

Given:

LMN is an equilateral triangle.

LM = LN = MN = 12 cm

To find:

The height of the triangle h.

Solution:

In a right angle triangle,

$\sin \theta=\dfrac{Opposite}{Hypotenuse}$

$\sin (60^\circ)=\dfrac{h}{12}$

$\dfrac{\sqrt{3}}{2}=\dfrac{h}{12}$

Multiply both sides by 12.

$\dfrac{\sqrt{3}}{2}\times 12=\dfrac{h}{12}\times 12$

$6\sqrt{3}=h$

Therefore, the height of the triangle is $6\sqrt{3}$ cm.

3 0

2 years ago