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juin [17]
3 years ago
5

the sum of three times a number and 2 less than 4 times the same number is 15. which of the following equations could be used to

find the value of the number m, n? explain how you arrived at your choice.
Mathematics
1 answer:
Ulleksa [173]3 years ago
4 0
To solve for a number x,

3x+4x-2=15
7x-2=15
7x=17
x=2 3/7
or x=~2.43

was one of your answer choices either of the first two equations?
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What is the median. I have 3 more questions that have to deal with the median.
Rom4ik [11]

Answer:

<h2><u>47.5</u></h2>

Step-by-step explanation:

Median - The middle number in a list of numbers starting from least to greatest.

Knowing this, we can start.

The first step is to rewrite all the numbers from least to greatest

15, 19, 28, 32, 43, 52, 66, 72, 72, 81

Now cross off a number from the least and greatest until there is 1 or 2 numbers left

19, 28, 32, 43, 52, 66, 72, 72

28, 32, 43, 52, 66, 72

32, 43, 52, 66

43, 52

If you are left we 1 number, that is your answer. If you are left with 2 numbers, there is an extra step

In the case that you have 2 numbers, you need to add them together, and divide by 2

43 + 52 = 95

95 ÷ 2 = 47.5

Thus 47.5 is our answer

6 0
3 years ago
3 tenths +4 tenths +__________tenths
algol [13]

Well four plus seven would equal seven tenths.

6 0
3 years ago
I NEED HELP! PLEASE HELP!
Amanda [17]

Answer:

2400 mm

Step-by-step explanation:

(80 x 60) - (60 x 40)

7 0
3 years ago
What tmes what equals 21?
ivann1987 [24]
3 x 7  because three, seven times is 21
3 0
3 years ago
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What is the simplest form of 2(4x+y)+3(x-6y)+x^2​
kipiarov [429]

Answer:

8x+2y+3x-18y+x^2

final answer: x^2+11x-16y

*edited*

7 0
3 years ago
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