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2 years ago

Please answer this and I’ll make you Brainly real fast

Mathematics

2 answers:

irina [24]2 years ago

7 0

Answer:

x = 18

Step-by-step explanation:

x - (-9) = 27

Notice that there is negative sign before (-9).

If you do, turn the value into positive.

Tip:

- × - = +

+ × + = +

- × + = -

+ × - = -

Now going back,

x + 9 = 27

Subtract by 9 on both sides:

x + 9 - 9 = 27 - 9

x = 18

Maksim231197 [3]2 years ago

4 0

X+9=27
X=27-9
X=18
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How to write3.repeating 7 as a mixed number

ki77a [65]

Hey there! I'm happy to help!

Let's call our fraction x.

x=3.777......

We want to get rid of the repeating stuff. If we multiply our fraction by 10, we get 10x=37.7777.

We see that if we subtract x from 10x, the repeating numbers will be cancelled out. Let's do this.

10x=37.7777

x=3.77777

9x=34

We divide both sides by 9.

x=34/9=3 7/9.

Have a wonderful day! :D

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3 years ago

If a system of equations has one solution, what does the graph look like?

monitta

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3 years ago

PLEASE HELP ASAP!!!!

mezya [45]

64, because its square root is 8.
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3 0

2 years ago

Read 2 more answers

Evaluate 7C3<br> OA) 25<br> O B) 45<br> OC) 35<br> OD) 20

SpyIntel [72]

Answer:

C) 35

Step-by-step explanation:

$^7C_3 \\ = \frac{7!}{3!(7 - 3)!} \\= \frac{7!}{3! \: 4!} \\ = \frac{7 \times 6 \times 5 \times 4!}{3 \times 2 \times 1 \times 4!} \\ = \frac{7 \times 6 \times 5 \times 4!}{3 \times 2 \times 1 \times 4!} \\ = 35 \\ \huge \red{ \boxed{ \therefore \: ^7C_3 = 35}}$