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tester [92]
3 years ago
13

I need help solving this equation 4n-9=2(5+2n)

Mathematics
1 answer:
Nastasia [14]3 years ago
4 0

First, use distributive property on the right half.

2 * 5 = 10

2 * 2n = 4n

4n - 9 = 10 + 4n

Add 9 to both sides

4n = 19 + 4n

Subtract 4n from both sides

0 = 19

But thats not true. Therefore, there is no solution.

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What is the volume of a sphere with a radius of 5.9 in, rounded to the nearest tenth of
Olegator [25]

Answer:

6

Step-by-step explanation:

If u round it to the nearest 1

6 0
2 years ago
39 is what percent of 96
ra1l [238]

Answer:

40.625%

Step-by-step explanation:

This is a very simple question.

We have to understand converting word equations to algebraic ones.

"is" means "="

"of" means "*"

So, we can write:

39 = what percent * 96

Now, we let "what percent" be "p" and solve the equation for p:

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So,

39 = P * 96\\39=96P\\P=\frac{39}{96}\\P=0.40625

Converting this decimal to percentage means multiplying by 100, so we have:

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7 0
3 years ago
The sum of a number and -3 is equal to -91.Find the number
larisa86 [58]
The sum of -3 and a number equal to -91 is -88
7 0
3 years ago
Help with this!!plz. Asap
gizmo_the_mogwai [7]
Hey there! :D

So, we know that there are 3 z's and 3 6's. 

3*z= 3z

6*3= 18 

3(z+6) <== equivalent expression 

3z+18 <== equivalent expression

z is by itself. It shouldn't combine. It should stay the same. 6 as a unit is separate from z. 

Choices "B" and "E" are correct.

I hope this helps!
~kaikers
5 0
3 years ago
The quotient of a number, divided by 3, equals-8
melisa1 [442]

Answer:

x / 3 = -8

Step-by-step explanation:

5 0
2 years ago
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