1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Shalnov [3]
4 years ago
10

need to find the perimeter of the box. the lenght of rectangular book is 2 unit less than its width. if the area of the book is

15 unit square.
Mathematics
1 answer:
Ede4ka [16]4 years ago
8 0
Area is equal to length x height. Let us say that the height of the book is x, and then the length would be x-2.

Area = length x height
15 = (x-2)x
15= x^2 - 2x
0= x^2 -2x -15
x = 5
So the length would be (5-2)=3, and the height would be 5.

The overall perimeter would be 2xlength +2xheight so 6+10=16.

You might be interested in
465,321;456,321;456,231. Order from least to <br> greatest
Svetradugi [14.3K]
456,231. 456,321. 465,321
7 0
3 years ago
What is first three common multiples of 4,9,and 12​
wel

Answer:

36 is the answer of this question

4 0
3 years ago
Read 2 more answers
On April 1, the price of gas at Bob's Corner Station was $3.35 per gallon. On May 1, the price was $3.85 per gallon. On June 1,
Zina [86]
<h2>Answer:</h2>

1. Between April 1 and May 1, Bob's price incrdased by <u>$0.50 or 15%</u>.

2. Between May 1 and June 1, Bob's price decreased by <u>$0.50 or 13%</u>.

3. Suppose that atgas station across the street, prices are always 20% higher than Bob's. In absolute dollar terms, the difference between Bob's prices and the prices across the street is <u>$0.1 more expensive</u> when gas costs $3.85 than when gas costs $3.35.

4. Suppose the Fed raises the target for the federal fundsb rate from 2% to 2.25%. This change of percentage points means that the Fed raised its target by approximately <u>0.25%</u>.

<h2>Step-by-step explanation:</h2>

<h3>1. Between April 1 and May 1, Bob's price incrdased by...</h3>

<em>Take the difference of the prices to find an absolute value:</em>

$3.85 - $3.35= $0.50.

<em>Use the following formula to find the relative value:</em>

C= |Original value - New value|/ Original value

C=\frac{|OV-NV|}{OV}=\frac{|3.35-3.85|}{3.35}  =0.15=15%.

<h3>2. Between May 1 and June 1, Bob's price decreased by...</h3>

<em>Take the difference of the prices to find an absolute value:</em>

$3.85 - $3.35= $0.50.

<em>Use the following formula to find the relative value:</em>

C= |Original value - New value|/ Original value

C=\frac{|OV-NV|}{OV}=\frac{|3.35-3.85|}{3.85}  =0.13=13%.

<h3>3. Suppose that atgas station across the street, prices are always 20% higher than Bob's. In absolute dollar terms, the difference between Bob's prices and the prices across the street is (blank) when gas costs $3.85 than when gas costs $3.35.</h3>

<em>In this question we are looking for the difference of a difference. </em>

<em>If the proces across the street are always 20% higher, to find how much the gallon costs just multiply the price by 1.20, to increase 0.2 or 20%:</em>

$3.85 * 1.20= $4.62.

<em>Now, to see how much expensive this price is compared to Bob's, take de difference between the prices:</em>

$4.62 - $3.85= $0.77.

<em>Do the same to find the difference between the gas prices when the price is $3.35.</em>

$3.35 * 1.20= $4.02.

$4.02 - $3.35= $0.67.

Now, find the difference of those differences:

$0.77 - $0.67= $0.1.

<h3>4. Suppose the Fed raises the target for the federal funds rate from 2% to 2.25%. This change of percentage points means that the Fed raised its target by approximately (blank).</h3>

<em>Find the difference between percentages:</em>

2.25% - 2%= 0.0225 - 0.02= 0.0025= 0.25%.

<em>Simpler method:</em>

2.25% - 2%= 0.25%.

3 0
2 years ago
A baseball training clinic takes out a loan to build in reception area the loan is for $28,500 at 4.25% for five years how much
myrzilka [38]
The answer would be 1211.25 because 28500 x 0.0425 is equal to that. (don't trust this answer).
5 0
4 years ago
Read 2 more answers
A/3-9/2=2a+1 solve for a​
Nataliya [291]
I think it’s 3 because
6 0
4 years ago
Other questions:
  • *WILL MARK BRAINLIEST*
    12·1 answer
  • Help me pls I give brainiest ​
    8·2 answers
  • 3 halves + 5 halves​
    8·2 answers
  • x+ y+(k −5)z=k where k is an arbitrary constant. For which value(s) of k does this system have a unique solution? For which valu
    12·1 answer
  • What does it mean for an equation to be a radical equation?
    12·1 answer
  • Assistance on this one
    14·1 answer
  • Use an integer to represent 35 degrees Celsius. Answer fast, I will give brainliest.
    11·1 answer
  • What is the volume of a cube with 1/2 inch sides
    13·2 answers
  • Divide 5÷1/4 Thank you.
    12·2 answers
  • Drag each label to the correct location on the image.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!