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Angelina_Jolie [31]
2 years ago
7

I just need help it seems easy but not for me

Mathematics
2 answers:
damaskus [11]2 years ago
4 0

Answer:

7 paperbacks, 2 hardcovers

Step-by-step explanation:

2x8=16

7x5=35

35+16=51

Hope this answers your question.

Nezavi [6.7K]2 years ago
3 0
Two hand covers and seven paperbacks
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A metal bar is 7 5/8 inches long. If 9/32 inches is cut off one end, how long is the bar after the cut?
Blizzard [7]
7 11/32 inches i do believe
8 0
3 years ago
Read 2 more answers
The sector COB is cut from the circle with center O. The ratio of the area of the sector removed from the whole circle to the ar
mafiozo [28]

Answer:

Ratio = \frac{R^2 - r^2 }{ r^2}

Step-by-step explanation:

Given

See attachment for circles

Required

Ratio of the outer sector to inner sector

The area of a sector is:

Area = \frac{\theta}{360}\pi r^2

For the inner circle

r \to radius

The sector of the inner circle has the following area

A_1 = \frac{\theta}{360}\pi r^2

For the whole circle

R \to Radius

The sector of the outer sector has the following area

A_2 = \frac{\theta}{360}\pi (R^2 - r^2)

So, the ratio of the outer sector to the inner sector is:

Ratio = A_2 : A_1

Ratio = \frac{\theta}{360}\pi (R^2 - r^2) : \frac{\theta}{360}\pi r^2

Cancel out common factor

Ratio = R^2 - r^2 : r^2

Express as fraction

Ratio = \frac{R^2 - r^2 }{ r^2}

6 0
3 years ago
7(1 - 76) - 2b = -197
noname [10]

Answer:

b= -164

Step-by-step explanation:

calculate the difference

7x(-75)-2b= -197

multiply the numbers

-525-2b= -197

move the constant to the right- hand side and change the sign

-2b= -197+525

add

-2b=328

divide

b= -164

4 0
3 years ago
F 6. A carpenter bought a table for 3500. He spent 500 on repairing and painting it. He then sold it for 3500. What was his prof
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Answer:

the carpenter lost 500

Step-by-step explanation:

if he bought the table for 3500 and spent an additional 500 on repairs but only sold it for 3500 he didn't make a profit and lost 500

8 0
1 year ago
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