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
Rina8888 [55]
3 years ago
13

The length of a rectangle is 5 inches more than twice a number.The width is 4 inches less than the same number.If the area of th

e rectangle is 15,find the number.
Mathematics
1 answer:
umka2103 [35]3 years ago
6 0

Answer:

n = 5, n = -7/2

Step-by-step explanation:

2n + 5 = l

n - 4 = w

A = l × w = 15

(2n + 5)(n-4) = 15

2n^2 - 8n + 5n - 20 = 15

2n^2 -3n - 35 = 0

(2n + 7)(n - 5) = 0

2n + 7 = 0      or       n - 5 = 0

n = -7/2          or       n = 5

You might be interested in
A recipe for quinoa no calls for 2 and 2/3 cups of milk Connor wants to make four batches of quinoa how much milk does he need
lisov135 [29]
Multiply the numbers

2(2/3)
2/1(2/3)= 4/3 = 1 1/3
7 0
3 years ago
(NEED HELP ASAP)
Mumz [18]
*The missing image is attached with the answer*

The correct answer is: Height = h =5 units

Explanation:
a = 6 = Smaller base
b = 10 = Larger base
h = height

Area = A = (a + b)h/2 = 40

Plug in the values in the above equation:
h = (2*40)/(6+10)
h = 5 units

4 0
3 years ago
Read 2 more answers
If a cheetah can run 70 miles per hour. What is this seed in feet per hour
svp [43]
36,960 Im pretty sure
3 0
3 years ago
There are 30 students in Mrs. Woodward’s class, and 1/5 of the class has their own cell phone. Of this group of students, 1/2 of
olga_2 [115]

Answer:

3 students

Step-by-step explanation:

There are 30 students in Mrs. Woodward’s class.

\dfrac{1}{5} of the class has their own cell phone, so

\dfrac{1}{5}\cdot 30=\dfrac{1}{5}\cdot \dfrac{30}{1}=6

students have their own cell phones.

\dfrac{1}{2} of those 6 students are allowed to use social media. So,

\dfrac{1}{2}\cdot 6=\dfrac{1}{2}\cdot \dfrac{6}{1}=3

students are allowed to use social media.

3 0
3 years ago
The vertex of this parabola is at (-3, 6). Which of the following could be its equation?
pishuonlain [190]
Since the vertex is at (-3, 6), the equation is given by
y = a(x + 3) + 6

Therefore, option A is the correct answer.
6 0
3 years ago
Other questions:
  • Find the area of the figure. Round to the nearest tenth if necessary.
    7·1 answer
  • A forest fire covers twice the amount of forest as it did 3 days ago. If the fire covered 300 square miles 3 days ago and it con
    5·1 answer
  • the graph shows the first five terms in a geometric sequence what is the iterative rule for the sequence​
    8·1 answer
  • Determine the probability of having 0 girlsgirls and 3 boys in a 3​-child family assuming boys and girls are equally likely. wha
    8·2 answers
  • the cylinder and the sphere below have the same radius and the same volume. What is the height of the cylinder?
    7·1 answer
  • Simplify 0.75 (5v+11)-0.25 (11+v)
    10·1 answer
  • Can someone help with this problem? ASAP
    13·1 answer
  • Which equation and statement below correctly explains why the table is a function? 100 POINTS!!!
    15·1 answer
  • Please help thank you very much!!! <3
    9·2 answers
  • The ratio of 62 miles to 100 kilometers
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!