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natta225 [31]
3 years ago
12

PLEASE HELP! WILL MARK BRAINLIEST, IF ITS RIGHT!

Mathematics
2 answers:
Novosadov [1.4K]3 years ago
8 0

Answer:

x=16

Step-by-step explanation:

4x+30+5x=180

9x+30-30=180-30 (you want to get x to be by itself)

9x/9=150/9

x=16.667

x=16

nikitadnepr [17]3 years ago
5 0

4x + 30 = 5x

4x = 5x - 30

4x - 5x = - 30

x = 30

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x =  - 2 \\ y = 2 \\  \\ ( - 2, \: 2)

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7 0
2 years ago
-7 (-7)^-4 plz help plz
Natali5045456 [20]

Answer: -1/343

Step-by-step explanation:

-7(-7)^-4

First, re-write as positive exponents:

-7(-1/7^4)

Next, simplify:

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Simplify 7^3 :

7(7)(7)

49(7)

343.

Insert to original expression:

-1/343.

5 0
3 years ago
Divide 33 into two groups so the ratio is 4 to 7 how do you divide it
Vladimir79 [104]
Split 33 into two numbers that when added up are 33.
So 12 to 21, which when divided by 3, are 4 to 7.
7 0
2 years ago
Read 2 more answers
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