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
Sliva [168]
3 years ago
5

A 5 in x 7 in picture is in a frame of uniform width x. The area of the picture and the frame together is 99 in2. How wide is th

e frame?
A. 1 inch

B. 2 inch

C. 2 1/2 inch

D. 8 inch
Mathematics
2 answers:
algol133 years ago
5 0

Answer: B. 2 inch

Step-by-step explanation:

Let x represent the uniform width of the frame.

The original dimensions of the picture is 5 in x 7 in. This means that the new width of the picture together with the frame is (5 + 2x) in and the new length of the picture together with the frame is (7 + 2x) in.

The formula for determining the area of a rectangle is expressed as

Area = length × width

The area of the picture and the frame together is 99 in2. Therefore,

(5 + 2x)(7 + 2x) = 99

35 + 10x + 14x + 4x² = 99

4x² + 24x + 35 - 99 = 0

4x² + 24x - 64 = 0

Dividing through by 4, it becomes

x² + 6x - 16 = 0

x² + 8x - 2x - 16 = 0

x(x + 8) - 2(x + 8) = 0

x - 2 = 0 or x + 8 = 0

x = 2 or x = - 8

The width cannot be negative. So

x = 2 in

-BARSIC- [3]3 years ago
5 0

Answer: B.) 2 inches

Step-by-step explanation:

You might be interested in
Please answer this correctly
vovangra [49]

Answer:

Cable: 10%  Satellite: 40%  Streaming Service: 50%

Step-by-step explanation:

There are 10 friends  

1 has cable

4 have satellite

5 have streaming service  

Which means:

Cable is 10%

Satellite is 40%

Streaming Service is 50%

5 0
2 years ago
Read 2 more answers
11. The formula for finding a number that's the square root of the sum of another number n and 6 is
Dafna1 [17]

Answer:

x = \sqrt{x+6}

Step-by-step explanation:

The question states that it is the square root of the sum of both n and 6. That means n and 6 are added first before square rooted. Between B and C, choose the answer that has the parenthesis around x and 6, like (x + 6).

6 0
3 years ago
For the line segment whose endpoints are A (0, 0) and B (4, 3), find the x coordinate for the point located 2 over 3 the distanc
WARRIOR [948]

Answer:

<h3>3.3</h3>

Step-by-step explanation:

Distance between AB is expressed as;

AB = √(3-0)²+(4-0)²

AB = √3²+4²

AB =√9+16

AB = √25

AB = 5

2 over 3 the distance from A to B is expressed as;

2/3 of AB

= 2/3 * 5

=10/3

= 3.3

6 0
2 years ago
Read 2 more answers
What is the greatest common factor of 12 and 36
konstantin123 [22]

12 is a factor of 36 and of course 12, so

Answer: 12

4 0
3 years ago
Read 2 more answers
Nvm i did it . it took me a long time but i did it
ra1l [238]
Wooooooo hoooooooo you goooooooo
                                          
                     
7 0
2 years ago
Other questions:
  • Identify the height of the rectangle, in which A=200x2 m2.
    14·1 answer
  • Whats is 20x6+2x0+1 ????
    14·2 answers
  • What is the answer for m.a.d 6,8,5,3
    5·2 answers
  • A function is created to represent the height above sea level of a mountain climber every hour. What restrictions would be made
    6·1 answer
  • PLSSSSSS help ASAP <br> ANSWER 3 OF THEM PLSS
    5·1 answer
  • How do you find the total cost of a $12.95 DVD after the tax is added?
    10·1 answer
  • Mary drove from her home to the library. After she left the library, she drove to the park. After that, she drove home. The map
    10·1 answer
  • Is this correct? Or are the numbers wrong
    13·1 answer
  • a farmer has sheep and hen .the sheep and hen together have 100heads and 356 legs .how many sheep and hens does the farmer have?
    8·1 answer
  • I need to find side x of this 30 60 90 triangle i think with special right triangle methods
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!