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Anvisha [2.4K]
3 years ago
15

Please help me add this fractions(show work) ​

Mathematics
1 answer:
tatuchka [14]3 years ago
6 0

Answer:

Step-by-step explanation:

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A bookmark has an area of 14 square centimeters and a perimeter of 18 centimeters. What are the dimensions of the bookmark?
Naily [24]

Answer:

2 x 7

Step-by-step explanation:

a * b = 14

2a + 2b = 18

(a * b)/b  = 14/b Dividing both sides by b

a = 14/b

Substitute a in the perimeter equation

2(14/b) + 2b = 18

28/b + 2b = 18

2b - 18 + 28/b = 0

Multiply both sides by b

2b^2 - 18b + 28 = 0

Divide both sides by two

b^2 - 9b + 14 = 0

The Factors of 14 include -2 and -7 which add up to -9

(b - 2) * (b - 7) = 0

This has two answers because b can be either the side that is 2 long or 7 long, so there's no need to go back and solve for a.

2 x 7

4 0
3 years ago
Which statements are true for the image below? Check all that apply.
Arlecino [84]

Answer:

its 1,3,4,and 7

Step-by-step explanation:

i just did it

so A,C,D,and G

3 0
3 years ago
Read 2 more answers
Write the inequality (without solving)
Lesechka [4]

Answer:

2.15f+4.6n\leq 150

Step-by-step explanation:

She has a budget of $150, which means that she can spend no more than that amount. Therefore, use the less than or equal to symbol: ≤

Each folder is $2.15, so you are going to multiply: 2.15 × f

Each notebook is $4.60, so you will multiply: 4.6 × n

You want to know how many notebooks and folders you can buy for $150, so add the notebooks and folders.

Make the equation:

2.15f+4.6n\leq 150

:Done

6 0
3 years ago
A manufacturer has designed a process to produce pipes that are 10 feet long. The distribution of the pipe length, however, is a
Lina20 [59]

Answer:

first of all, this person is a hacker, their malicious files will destroy your computer

Step-by-step explanation:

B is the answer I think

8 0
3 years ago
Tell whether the angles are complementary or supplementary. Then find the value of x.
Paha777 [63]
The angles are complementary meaning they =90 degrees.

So take (x-20) and x, and write this equation,

x-20+x=90

2x-20=90

move the 20 over

2x-20=90
    +20  +20

2x=110

x=55.

You can check it by plugging it back in,

(55-20)=35
and
x=55

35+55=90.

Thus, you know your answer is correct.
8 0
3 years ago
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