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mr Goodwill [35]
3 years ago
6

What is the answer to 2x+3=4x+6-(2x+3)

Mathematics
1 answer:
Grace [21]3 years ago
7 0

I am still learning, and am most likely incorrect.

I believe you remove the 3's since their not needed, and do this:

2x = 4x + 6 - (2x)

so then just ignore "x" and do this:

2 = 4 + 6 - 2

2 = 10 - 2

2 = 8


x = 8

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How did Katherine Johnson’s work in math affect us today?
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Answer:

she made electronic calculating machines in order to calibrate rockets and make everything more precise

Step-by-step explanation:

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I NEED ANSWER ASAP! I HAVE A LOT OF POINTS, I WILL GIVE 50 POINTS AND BRAINLIEST TO FIRST ANSWERRRRRR!
Mekhanik [1.2K]

Answer:

A) A = 1; B = 0; C = 20

Step-by-step explanation:

The standard form for a quadratic is

Ax^2 +Bx +C=0

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7 0
3 years ago
Read 2 more answers
What is the value of k in the function ƒ(x) = 112 - kx if ƒ(-3) = 121?
DedPeter [7]
  f(x) = 112 - kx
 f(-3) = 112 - k(-3)
 f(-3) = 112 - (-3k)
 f(-3) = 112 + 3k
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- 112  - 112
      9 = 3k
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6 0
2 years ago
I was walking to the store at the same time as my friend Angela. No matter what, She has always gotten there twice as fast as me
atroni [7]
Let's call your speed "a"

her walking speed is then "2a"

and her friend's scooter speed is 10 a

let's also call the distance you need to walk "d"

so the time (t)you need is:

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t=d/a

and her time is:
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now we count (we know that her time is 30 minutes)

30= \frac{d}{4a}+\frac{d}{20a} //multiply by 20a

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Now, in order to calculate your time we need to calculate:

t=d/a

but we know how much is d now!
t=\frac{100a}{a}=100

which means that you need 100 minutes, or 1 h 40 minutes!!!

6 0
3 years ago
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