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Alex73 [517]
3 years ago
5

How do I start off these problems?

Mathematics
1 answer:
Marina CMI [18]3 years ago
8 0
First of all you have to make them equal to each other. What I mean is the following
3x+20=2x+40
Then you should just solve for x
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Find the mean of the number set.<br>93, 81, 94, 78, 89, 92, 94, 99<br>Your answer divided by 7​
dimaraw [331]

Answer:

mean= 90

Step-by-step explanation:

The mean is the terms added together, then divided by the number of terms (in this case, 8):

93+81+94+78+89+92+94+99=720\\\\\frac{720}{8} =90

Done.

7 0
3 years ago
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The value of 33+4⋅(52−42)
joja [24]

We will use order of operations (PEMDAS) to solve this.

1.) 33+4(52-42) This is our equation. So, first we are gonna subtract 42 from 52.

2.) 33+4(10) Now that we did that, we are gonna add 4 to 33.

3.) 37(10) Lastly we are gonna multiply 37 by 10.

The answer is gonna be 370. If this helped, maybe consider giving me brainliest :)

7 0
3 years ago
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Plz help me i dont even know how to start this can u also explain how to do it much appretciated
Sergeu [11.5K]
Ok did your teacher say anything about not being able to use negative numbers or fractions? If not can you use fractions or negative numbers.
4 0
3 years ago
A polynomial equation has only imaginary roots and no real root. Which options CANNOT be the degree of that polynomial? (Select
puteri [66]

we know that

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therefore

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12.5% is what in fraction form?
Serggg [28]
1/8 is the answer because when you turn 12.5% into a decimal it is .125 and .125 x 8= 1. Hope this helps you out.
8 0
3 years ago
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