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Mazyrski [523]
3 years ago
10

Find the value of x.

Mathematics
1 answer:
Lorico [155]3 years ago
6 0

Answer:

1.

3x-20=130

3x=130+20

3x=150

x=50

2.

8x-2=-9+7x

8x-7x=-9+2

x=-7

3.

x+6=33

x=33-6

x=27

those tasks are very simple, you should try to solve them on you're own first :)

Step-by-step explanation:

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Combination and permutation problems. Giving brainliest to whoever works it out and explains it to me!
Ronch [10]

Answer:

5: Permutation. 6: Combination

Step-by-step explanation:

Being that the team of Basketball players are <u>Arranging</u> who will change the water cooler, then the Answer is <u>Permutation</u>.

Mei has homework, and she's deciding which subject to do first. She has a <u>Selection</u> of choices, thus being the Answer- <u>Combination</u>.

Hope this makes sense. If you need clarification, feel free to reach back out to me.

3 0
3 years ago
Determine the number of real solutions of -2x2 + 5x - 3 = 0.
andrew11 [14]

-2x^2 + 5x -3 =0

Find the discriminate:

In the given formula a = -2, b = 5 and c = -3

The discriminate is found using the formula b^2 - 4(ac)

Replace the letters with their values:

5^2 - 4(-2*-3)

25 - 4*6

25-24 = 1

When the discriminate is greater than or equal to 0, there are two real solutions.

The answer is c) 2

4 0
3 years ago
Justin walked 3 miles north and 6 miles west. starting from the same point, tina walked 2 miles south and 4 miles east. how far
Darya [45]
Basically, Justin and Tina's paths form two right-angled triangles whose hypotenuses(?) form a straight line between their end points. Therefore we need to find the two distances from the starting point and add them.
Justin walked 3 miles north and 6 miles west so his distance from the start is the square root of 9+36 or 45. This can be simplified to 3√5. 
Tina walked 2 miles south and 4 miles east so her distance from the starting point is the square root of 4 + 16 or 20. This can be written as 2√5.
If we add these two distances together we get 5√5. Hence, Justin and Tina are 5√5 miles away from each other.
6 0
3 years ago
What is the HCF of 96 and 108
mash [69]
The answer is 12 good luck;)
4 0
3 years ago
Which of the following ratios will form a proportion with<br> 2<br> 3
gayaneshka [121]

Answer:

you have to use cross-multiplication in order to find out the answer to this question.

Step-by-step explanation:

9/12 times 2/3

7 0
3 years ago
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