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Andrej [43]
3 years ago
5

Select all the equations where x=3 is a solution

Mathematics
2 answers:
Vinil7 [7]3 years ago
8 0

Answer:

the first , second, third,

Step-by-step explanation

x-3=0

add 3 on both sides you get 3 as the answer.

6=2x

divide 2 from both sides you get 3 as the answer

5x=15

divide 5 from both sides you get 3 as the answer

DanielleElmas [232]3 years ago
3 0
The first, second, and third answers are correct.
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You would have to use 6/8 cans of paint to paint 10 walls.
7 0
3 years ago
A spinner with 6 equally sized slices is shown below. (2 slices are yellow, 1 is blue, and 3 are red.) The dial is spun and stop
Lady bird [3.3K]

Answer:

1/3

Step-by-step explanation:

We have 6 slices

2 are yellow

P ( yellow) = number of yellow / total

                 = 2/6

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8 0
3 years ago
Read 2 more answers
Any one that knows this please help thanks!
zepelin [54]

Replace x with -1, and y = 9

Therefore, (x²y)/-7 becomes (-1² · 9)/-7

-1² is just 1, and 1 × 9 is just equal to 9, so your final answer is -9/7.

5 0
3 years ago
Rick says to find 2x5, he can use counting by 5s: 5,10,15,20,25. Explain what he did wrong.
Helga [31]
I mean he did everything right except he kept going past 5x2. I think that's the only mistake.

Hope I helped! :) (would you mind giving Brainliest answer? I'm trying to increase my title and I would really appreciate it!)
7 0
4 years ago
What is the length of Line segment B C, rounded to the nearest tenth? 13. 0 units 28. 8 units 31. 2 units 33. 8 units.
Len [333]

The length of the line segment BC is 31.2 units.

<h2>Given that</h2>

Triangle ABC is shown.

Angle ABC is a right angle.

An altitude is drawn from point B to point D on side AC to form a right angle.

The length of AD is 5 and the length of BD is 12.

<h3>We have to determine</h3>

What is the length of Line segment BC?

<h3>According to the question</h3>

The altitude of the triangle is given by;

\rm Altitude = \sqrt{xy}

Where x is DC and y is 5 units.

Then,

The length DC is.

\rm Altitude = \sqrt{xy}\\&#10;\\&#10;12 = \sqrt{(DC) \times 5}\\&#10;\\&#10;\sqrt{DC } = \dfrac{12}{\sqrt{5}}\\&#10;\\&#10;

Squaring on both sides

\rm DC = \dfrac{144}{5}\\&#10;\\&#10;DC = 28.8

Considering right triangle BDC, use the Pythagorean theorem to find BC:

\rm BC^2 = DC^2+BD^2\\\\  BC^2 = (28.8)^2+(12)^2\\&#10;&#10;\\&#10;BC = \sqrt{829.44+144}\\&#10;\\&#10;BC = \sqrt{973.44}\\&#10;\\&#10;\rm BC = 31.2 \ units

Hence, the length of the line segment BC is 31.2 units.

To know more about Pythagoras Theorem click the link given below.

brainly.com/question/26252222

6 0
2 years ago
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