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olga55 [171]
3 years ago
8

How to figúrate out if x makes the equation true

Mathematics
2 answers:
marissa [1.9K]3 years ago
7 0
You plug in the number for x and if it is equal to the solution then it is correct
fomenos3 years ago
7 0

Answer:

Someone already explained this and their right but I wanted to add an example.

Lets say you have the equation 4x+3=19.

You solve it by subtracting three from both sides to isolate x which gives you 4x=16 and dividing both sides by 4 to get you an answer of 4.

Now, you know x=4 but you're not completely sure so you can check it.

Substitute the known value of x into the original equation and check to see if both sides equal.

4(4)+3=19

16+3=19

19=19

This checks out so your answer is correct.

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Write the equation of the line that passed through the points (-1,6) and (5,0)
lidiya [134]

Answer: y = -1x + 5

Step-by-step explanation:

1. Plug the coordinates into the slope formula (y2 - y1)/ (x2 - x1)

(0 - 6)/ (5 -(-1))

2. Solve for slope

-6/6

= -1

3. Plug the first coordinate and slope into the point slope form equation (y - y1) = slope(x - x1) to find the rest of the equation of the line

(y -(-1)) = -1( x - 6)

4. Solve for y

y + 1 = -1x + 6 -----> y = -1x + 5

7 0
3 years ago
What is the mean of 35 and 39?
tatyana61 [14]

Answer:

37

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Melissa makes necklaces and sells them online. She charges $88 per necklace. Her monthly expenses are $3745. How many necklaces
VladimirAG [237]

Answer:

She must sell at least 18 necklaces to have a profit of at least 1,650 . In order to pay for her monthly expenses she needs to sell at least 43 necklaces. If she wants to have 1,650 remaining after paying for her monthly expenses she'll have to sell around 61 necklaces.

6 0
2 years ago
The question is: find 55% of $4.80...how do I find the answer?
tresset_1 [31]
4.80 = 100%
   x   = 55%

Cross Multiply

100 * x = 55 * 4.80
100x = 264
x = <u>264</u>
      100
x = 2.64

Solution: $2.64
6 0
2 years ago
Read 2 more answers
Anyone willing to help?? thank u to whoever does help :))
blsea [12.9K]

Answer and Step-by-step explanation:

Yes, the three side lengths could form a triangle.

To find out if the sides can form a triangle, you take the lowest side lengths and add them together. If they are <u>greater </u>than the longest side, then they can form a triangle. <u>If it is equal or less than the longest side,</u> then it CAN NOT form a triangle.

7.8 + 10.4 > 13

18.2 > 13

<u>So, the answer is Yes.</u>

<u><em>#teamtrees #PAW (Plant And Water)</em></u>

4 0
2 years ago
Read 2 more answers
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