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
babymother [125]
3 years ago
13

A notebook has a perimeter of 36 inches. It’s area is 80 square inches. What are the dimensions of the notebook

Mathematics
1 answer:
earnstyle [38]3 years ago
7 0
Let's call he width of the notebook w and the length l

w*l=80

2(w+l)=36
w+l=18
w=18-l

(18-l)*l=80
-l^2+18*l-80=0
l=8 or 10

Therefore, the notebook is 8 by 10 inches


You might be interested in
Find the equation of the line that passes through the point left (-9,12) and is perpendicular to the line y=3/2x-1/2. Write the
ohaa [14]

Answer:

The answer to your question is: y = -2/3 x + 18

Step-by-step explanation:

Data

Point = (-9, 12)

line   y = 3/2x -1/2     perpendicular

Process

The line must be perpendicular to the line given. Then,

slope is the line given = 3/2, we change it because the lines must be perpendicular ,

New slope         M =  -2/3

New line       y-y1 = m(x - x1)

                     y - 12 = -2/3 (x + 9)             Substitution

                   3( y - 12) = -2(x + 9)

                   3y - 36 = -2x - 18                 Simplify

                   3y = -2x - 18 + 36

                   3y = -2x + 18

                      y = -2/3 x+ 18                      Result

8 0
2 years ago
If y=6 when x=15 then which of thr following is the value of x when y=20
denis23 [38]

Answer:

if you meant x times y...

15 x 20 is 300.

if you meant x + y...

15 + 20 is 35.

if you meant anything else, please let me know

the way it was written confused me but I tried.

7 0
2 years ago
a parallelogram has side lenghts 20 cm and 25 cm. the diagonal opposite the obtuse angle measures 38 cm. what is the measure of
Nady [450]

Step-by-step explanation:

1. draw the parallelogram with side 20cm and 25cm respectively and also the diagonal as well.

2.Clearly it forms a triangle in the parallelogram with three known lengths of side.

3.Using the cosine rule : c^2=b^2+c^2 -2bc cos c to find the obtuse angle.

3 0
2 years ago
Read 2 more answers
5.
adell [148]

Answer:

Solving the inequality 3x -2 < 4 we get \mathbf{x

Option D is correct option.

Step-by-step explanation:

We need to solve the inequality 3x -2 < 4 and find value of x

Solving the inequality for finding value of x, we will keep x on left side of inequality and all other terms on the right side.

3x -2 < 4

Adding 2 on both sides

3x -2+2 < 4+2\\3x < 6

Now, we will divide 3 on both sides

\frac{3x}{3}

So, we get x < 2

Solving the inequality 3x -2 < 4 we get \mathbf{x

Option D is correct option.

5 0
2 years ago
Each of the following financial products will help you build credit history EXCEPT
Otrada [13]

Answer:

Each of the following financisl products will help you build a credit history EXCEPT:

Your answer would be Debit card

Step-by-step explanation:

Hope this helps!

8 0
2 years ago
Other questions:
  • P=w/t,for W what is the equation to solve this problem
    9·1 answer
  • 3/10 is what percent of 400
    5·1 answer
  • In a bag of mixed nuts, the ratio of walnuts to peanuts is 4:3. If there are 48 walnuts, how many peanuts are in the bag?
    5·1 answer
  • Line AD bisects angle BAC and angle FDE. DE measures 5 cm and AE measures 4 cm. What is the length of FD?
    13·1 answer
  • Round 59.983 to the nearest tenth
    8·1 answer
  • Help with on number 4 and 6 please! I will mark you the brainliest!
    8·1 answer
  • Lydia had 20 minutes to do a three-problem quiz. She spent 9 7/10
    7·1 answer
  • Theatre tickets for 4 adults and 7 children cost the total of 45 . An adult ticket is twice the price of a child's ticket a) Wri
    9·1 answer
  • Mona is four years older than Karly.
    11·1 answer
  • Find the equation of the line that passes through (3,1) and is parallel to y = 2x + 3.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!