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iogann1982 [59]

1 year ago

11

At the craft store, Ayana bought a bag of blue and orange marbles. She received 41 blue marbles and 9 orange marbles. What perce

ntage of the marbles were blue? Write your answer using a percent sign (%).

2 answers:

RoseWind [281]1 year ago

5 0

Answer:

82%

Step-by-step explanation:

41+9 is 50(total marbles)

41/50 (blue/total) is 82%! :)

melomori [17]1 year ago

3 0

Answer:

82%

Step-by-step explanation:

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In a certain library the first shelf is 15.0 cm off the ground, and the remaining four shelves are each spaced 38.0 cm above the

baherus [9]

Answer:

1747.9 J

Step-by-step explanation:

The work done to lift a book by a certain height $\Delta h$ is

$W=mg\Delta h$

where

m = 1.40 kg is the mass of one book

$g=9.8 m/s^2$ is the acceleration due to gravity

The first shelf is 15.0 cm (0.15 m) from the ground, and it can be filled with 28 books. So, the work done to fill the first shelf is

$W_1=28mg\Delta h=28(1.40)(9.8)(0.15)=57.6 J$

The 2nd shelf is 38.0 cm above the first one, so its height from the ground is

$\Delta h =15.0+38.0 =53.0 cm=0.53 m$

It can also contain 28 books, so the work done to fill this shelf is

$W_2=28 mg\Delta h=28(1.40)(9.8)(0.53)=203.6 J$

The height of the third shelf is

$\Delta h =15.0+38.0 +38.0=91.0 cm=0.91 m$

It can also contain 28 books, so the work done to fill this shelf is

$W_3=28 mg\Delta h=28(1.40)(9.8)(0.91)=349.6 J$

The height of the 4th shelf is

$\Delta h =15.0+38.0 +38.0+38.0=129.0 cm=1.29 m$

It can also contain 28 books, so the work done to fill this shelf is

$W_4=28 mg\Delta h=28(1.40)(9.8)(1.29)=495.6 J$

The height of the 5th shelf is

$\Delta h =15.0+38.0 +38.0+38.0+38.0=167.0 cm=1.67 m$

It can also contain 28 books, so the work done to fill this shelf is

$W_5=28 mg\Delta h=28(1.40)(9.8)(1.67)=641.5 J$

Therefore, the total work done is:

$W=W_1+W_2+W_3+W_4+W_5=57.6+203.6+349.6+495.6+641.5=1747.9 J$

6 0

3 years ago

Can i use some help? im really confused on how to show my work and all

telo118 [61]

Answer:

3/20

Step-by-step explanation:

15% = $\dfrac{15}{100}$

Divide the numerator and denominator by 5

= $\dfrac{3}{20}$

6 0

2 years ago

Read 2 more answers

A bowl of fruit contains 10 oranges, 12 apples, 6 plums, and 2 peaches. If you want to compare the number of apples to oranges w

Sergeu [11.5K]

Answer:

Kindly check explanation

Step-by-step explanation:

To compare the number of apples to oranges

Number of apples = 12

Number of oranges = 10

Number of apples in terms of oranges :

12 /10 = 1.2

Number of apples = 1.2(number of oranges)

If number of apples = x

Number of oranges = y

x = 1.2y

There are 1.2 times the number of apples than number of oranges.

7 0

2 years ago

Please help test tomorrow everything you need is in the photo below

Luba_88 [7]

Answer:

yes

Step-by-step explanation:

7 0

3 years ago

-x + 2y=10<br> -3x+6y=11

Licemer1 [7]

Answer:

There is no solution.

Hope this helps!

PLEASE let me know if this is correct.

4 0

3 years ago

Read 2 more answers