Pls explain how to solve this
15-3n=n-1

Answers

Answer 1

Answer: First you have to isolate the variable. That means you have to get all the terms with the letter (n) on one side of the equal sign and everything else on the other side. To do this:
First add 3n to both sides and get:
15=4n-1
Now you have to add 1 to both side and get:
16=4n
Now you have to divide both sides by 4.
You get the answer of:
4=n

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A rectangle has a length six less than three times the width.If the perimeter is 28 units find the width and length

Answers

Answer:

Width = 5 and Length = 9 units.

Step-by-step explanation:

Let the width be W, then the length L = 3W - 6.

Perimeter = 2W + 2L = 2W + 2(3W - 6) = 28.

2W + 6W - 12 = 28

8W = 40

W = 5 units.

Therefore L = 3(5) - 6 = 9 units.

Step-by-step explanation:

Length:

l = 3w - 6

Perimeter:

P = 2l + 2w = 2(3w - 6) + 2w = 8w - 12 = 28 --> w = 5

l = 3*5 - 6 = 9

Integer Concepts - Item 2332 Question 3 of 7 Diving depths are measured relative to sea level. Sea level is measured as 0 meters. A scuba diver plans to dive to -30 meters. What does this statement mean?

Answers

This statement means that the diver is going 30 meters under sea level. It is negative because sea level is 0, and anything below 0 is a negative.

Ron bought a piece of plastic that was 3 1/2 yd by 2 2/3 yd. What was the area of Ron's plastic?
Express your answer in simplest form.

Please help me someone!

Answers

Multiply base time height. Simply put B(H)=A

B=3 1/2
H=2 2/3

A=(3 1/2)(2 2/3)
A=28/3
A=9.3333

Pythagorean theorem: Show work please

free points!!!!

Answers

so if you have a right triangle with legs legnth a and b and a hypotonuse legnth c, then a^2+b^2=c^2 given in the comments is that a=15 c=20 input and solve 15^2+b^2=20^2 225+b^2=400 subtract 225 from boths ides b^2=175 take square root of both sides b=5√7

The therorem is:

$a^(2) + b^(2) = c^(2)$
or, solving for b:
$b = \sqrt{c^(2)-a^(2)}$

$b = \sqrt{20^(2)-15^(2)}$
$b = √(400-225)$
$b = √(175)$
$b \approx 13.23$

How do you find the volume of a cube?

Answers

v equals a to the power 3

3
v = a

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