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ruslelena [56]
3 years ago
10

4|n|-5=7 please help me solve

Mathematics
2 answers:
givi [52]3 years ago
8 0
The answer to this problem is 3
DedPeter [7]3 years ago
3 0
I think you meant to type

4(n)-5=7.

4n = 7 + 5

4n = 12

n = 12/4

n = 3
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James has read 1/8 of a book eric has read 1/3 of the same book what fraction more of the book has eric read than james
BARSIC [14]

1/3 = 8/24

1/8 = 3/24

use 24 since it's the LCM of 8 and 3

8-3/24 = 5/24

3 0
3 years ago
What is the difference in volume between a sphere with radius r and a sphere with radius 0.3r?
REY [17]
The volume of the sphere of radius r is:
 V1 = (4/3) * (pi) * (r ^ 3)
 Where,
 r: sphere radius:
 The volume of the sphere of radius 0.3r is:
 V2 = (4/3) * (pi) * ((0.3r) ^ 3)
 Rewriting:
 V2 = (4/3) * (pi) * (0.027 (r) ^ 3)
 V2 = 0.027 (4/3) * (pi) * (r ^ 3)
 V2 = 0.027V1
 The difference is:
 V1-V2 = V1-0.027V1 = V1 (1-0.027)
 V1-V2 = 0.973 * (4/3) * (pi) * (r ^ 3)
 Answer:
 
the difference in volume between a sphere with radius and a sphere with radius 0.3r is:
 
V1-V2 = 0.973 * (4/3) * (pi) * (r ^ 3)
8 0
3 years ago
Hank is throwing a surprise party. The party costs $20 per person. Create an equation and graph to represent the relationship be
o-na [289]

Answer: Answer with Step-by-step explanation:

Since we have given that

Cost of party per person = $20.

Let the number of friends be 'f'.

Let the cost of party be 'p'.

According to question, our equation becomes

p= 2f

So, if p = 100, then f = p/2 = 100/2 = 50 if f = 10, then, p = 2f = 2 • 10 = 20 If p = 300 then, f = 300/2 = 150, If f = 20, then, p = 2f = 2 • 20 = 40 So, Table as follows:

Number of friends cost of party

50 100

10 20

150 300

20 40

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2 years ago
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antoniya [11.8K]

Answer:

  • 10 2/3 in

Step-by-step explanation:

<u>Subtract the values:</u>

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  • 18 13/12 - 8 5/12 =
  • 18 - 8 + 13/12 - 5/12 =
  • 10 + 8/12 =
  • 10 8/12 =
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6 0
2 years ago
Explain how to simplify x(2x + 3x2). You may indicate an exponent in your answer with ^. For example, 3x2 as 3x^2.
Kryger [21]
X(2x + 3x^2) = 2x^2 + 3x^3
3 0
3 years ago
Read 2 more answers
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