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Gennadij [26K]
3 years ago
13

4x-1/2=x+7 Ah I need help I’m really not sure

Mathematics
1 answer:
guajiro [1.7K]3 years ago
7 0

4x - 1/2 = x + 7

4x - x - 1/2 = 7

3x - 1/2 = 7

3x = 7 + 1/2

3x = 7.5

x = 7.5 ÷ 3

x = 2.5

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inna [77]
I’m pretty sure it’s 0.35
7 0
4 years ago
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The bike you have been saving for is discounted 20%. You have $400 saved to purchase it. The retail price of the bike is $450. T
Murrr4er [49]

Answer: You cannot buy it.

Step-by-step explanation:

$450 with a 20% percent discount would be $360

Add in a sales tax of 5.25%, and it amounts to $549 in total.

Since you only have $400, you cannot buy the bike.

3 0
4 years ago
Htuhrjnkemldjrhftrfejdkws
kondaur [170]

Answer:

2z + 4 = 8

Z = 2

Step-by-step explanation:

2z + 4 = 8

-4. -4

2z = 8

—- —

2. 2

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Easy Peasy! Hope this helped :) have great day!!

3 0
2 years ago
How do you do this problem 2n^3-n^2-136n=0
Rzqust [24]
<span>2n^3-n^2-136   :Equation: 

                                      Substitute 0 for n  

</span>                                      Simplify {20}^{3}<span> to </span><span>8000 
</span>
<span>8000−<span>0<span><span>​^2</span><span>​​</span></span></span>−136 

</span>                                     Simplify <span>{0}^{2}<span>​​</span></span><span> to </span><span>0 
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= 7864</span></span><span>
</span>
5 0
3 years ago
HELP BRAINISET TO WHOEVER RIGHT
Natasha_Volkova [10]

Answer:

A: 171.75

B: 170

Step-by-step explanation:

The mean (or average) can be found by...

- add all the numbers together (we will call this y)

- divide the total sum (or y) by the total amount of numbers used to add

Formula:

(x₁ + x₂ + x₃ + ... + xₙ) ÷ n

For A:

(172 + 130 + 173 + 212) ÷ 4 = 171.75

For B:

(136 + 184 + 168 + 192) ÷ 4 = 170

8 0
3 years ago
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