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TiliK225 [7]
3 years ago
13

I need help please.

Mathematics
1 answer:
pishuonlain [190]3 years ago
7 0

Step-by-step explanation:

2(x - 7) = 3(x + 9)

2x - 14 = 3x + 27

2x - 3x = 27 + 14

-x = 41

x = - 41

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Please help me! which ones are the right ones , pls and ty
Leya [2.2K]

Answer:

-5/6=-5/-6=- 5/6

- 7/2=-7/-2=-7/2

Step-by-step explanation:

8 0
2 years ago
PLEASE HELP ME I WILL GIVE BRAINLIEST
Leokris [45]

Answer:

there are fourteen 4-point questions and twenty six 2-point questions.

Step-by-step explanation:

Given : A 40-question test has 108 possible points.

There are m 4-point questions and n 2-point questions.

So , equation for total number of questions in the test :

m + n = 40 | 4n + 2n = 108

Multiplying (i) by 2 , we get

2m + 2n = 80

Subtract (iii) from (ii) , we get

2m = 28

⇒ m = 28/ 2 = 14

Using value of m in (i) , we get

14 + n = 40 ⇒ n = 26

from this we get there are fourteen  4-point questions and twenty six 2-point questions.

hope this helped!

3 0
3 years ago
Please answer this question only if you know it. :(
amm1812

Answer:

  a.  36°

Step-by-step explanation:

The same figure will reappear when rotated 360°/10 = 36° about the center.

___

<em>Comment on the question</em>

The question as worded is nonsense. If the figure is rotated at all, there is not enough information to tell what the angle of rotation might be.

7 0
3 years ago
Se necesitan 4/7 de litro de pintura para pintar un metro cuadrado de pared, si queremos pintar 2/5 de metro cuadrado de pared,
Assoli18 [71]

Answer:

8/35 de litro

Step-by-step explanation:

De la pregunta, sabemos que se necesitan 4/7 de un litro para pintar un metro cuadrado de pared.

Ahora necesitamos saber la cantidad de pintura necesaria para pintar 2/5 de un metro cuadrado.

Digamos que la cantidad necesaria es x

Ahora hagamos una relación matemática;

4/7 pinturas 1 metro cuadrado

x pintará 2/5 metros

cuadrados por lo tanto, x * 1 = 4/7 * 2/5 = 8/35

6 0
3 years ago
Looking at the problem what’s the difference between the two highlighted please I’m Russian and don’t understand English every w
babunello [35]
one is a coefficient ! other is normal number
4 0
3 years ago
Read 2 more answers
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