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
Solve the system using substitution: x = -4y and x + 5y = 2<br> Please and thank you.
Novay_Z [31]

Answer:

x = - 8, y = 2

Step-by-step explanation:

x =  - 4y......(1) \\ x + 5y = 2....(2) \\ plug \: x =  - 4y \: in \: equation \: (2) \\  - 4y + 5y = 2 \\ y = 2 \\ plug \: y = 2 \: in \: equation \: (1) \\ x =  - 4(2) \\ x =  - 8\\

7 0
3 years ago
Eighty-three and seventy-four hundredths minus sixty-one and ninety-seven hundredths equals _____.
beks73 [17]

21.77 you can also type that in in the google search bar and your answer will pop up

6 0
3 years ago
Read 2 more answers
How to solve this one​
ladessa [460]

A dotted line is not included in the solution so there is no equal sign.

The blue area is to the right of the dotted line so the solution is >

The line crosses the x axis at -2

The answer is : x-y > -2

4 0
2 years ago
Can y’all help me with it pls
Marta_Voda [28]

Answer:

1. D

2. C

3. C, A F

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Find the product. (3.2)(6.4)
vfiekz [6]
Answer:

20.48

The parentheses just means multiplication.
8 0
2 years ago
Other questions:
  • Please help asap! will mark brainliest for RIGHT answer!! 20 pts
    10·2 answers
  • What is 18.5% of $3200 ?
    9·2 answers
  • Sal needed 10.1 ft of 4-inch molding and 12.9 ft of 5-inch molding for his tree house.
    8·1 answer
  • Apply the rules for order of operations to simplfy 2 3-4 (5x4).
    13·1 answer
  • 2. Question :
    15·2 answers
  • What is the simplified form of 17√3-10√3?<br> A. 27√3<br> B. 7<br> C. 7√3<br> D.27√6
    7·2 answers
  • Simplify the following expression - 12(5x-4) *
    15·2 answers
  • In a Geometry class, Rosalie draws two circles on the coordinate grid as shown. She asks her students to prove that the two circ
    11·1 answer
  • The average life span of a lynx is
    14·2 answers
  • Five gallons of lemonade cost $8.00, which is a rate of ______ per_________
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!