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3 years ago

Can someone please help me!!

Mathematics

1 answer:

Elan Coil [88]3 years ago

6 0

Answer:

Step-by-step explanation:

Firstly we would start off by simplifying the equation by doing the order of operations backward (PEMDAS -> SADMEP) and multiply -4 and -3 which would equal a positive 12

Next, we would divide 12 and -6 and get a negative 2

Finally, we would have the equation 1 - 12 + (-2)

We would solve the equation to get -13/(-1)³

This would make the -13 into a positive since any number over one is a whole number. -13 is getting divided by (-1) 3 times so it converts to a positive, then a negative, then back to a positive.

I hope this helped :3

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A decreased by 20% and then increased by 20% express using algebra asapppppp

Ket [755]

Answer:

96%

Step-by-step explanation:

assume the whole number is x

the first thing is decreasing by 20 %

x - 20%x = 80% x

then now the 80%x is the whole number

now It's the turn of increasing

80%x + 20% * (80% x) = 80%x + 16%x = 96% x

I hope this is hlepful to you !!!!

Feel free to ask me in the comments

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3 years ago

-x+4=2x-8 We think it’s x=11.5

kvv77 [185]

Answer:

x=4

Step-by-step explanation:

-x+4=2x-8

4=2x-(-x)-8

4=2x+x-8

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4 years ago

One number is 5 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 779,

Harrizon [31]

Answer:

97, 485, 197

Step-by-step explanation:

Given:

First number = a
Second number = b
Third number = c

Then we have:

b = 5a
c = 100+a
a + b + c = 779

Substituting b and c in the third equation:

a + 5a + 100+a = 779
100 + 7a = 779
7a = 779- 100
7a=679
a= 679/7
a = 97
b= 5*97 = 485
c = 100+ 97 = 197

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3 years ago

What is the distance around a circle called?

Gnom [1K]

Answer:

it is "c" (circumference)

Step-by-step explanation:

i hope this helps, have a good day

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3 years ago

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Answer:

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Step-by-step explanation:

(X - 4)(X+2)

$( {x}^{2} + 2x - 4x - 8) \\ ( {x}^{2} - 2x - 8)$

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3 years ago