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LUCKY_DIMON [66]
3 years ago
13

Thomas has an album that holds 600 baseball cards each page of the album holds 6 cards. If 45% of the album is empty, how many p

ages are filled with baseball cards
Mathematics
1 answer:
My name is Ann [436]3 years ago
3 0

Answer:

55 pages

Step-by-step explanation:

Knowing that the <em>book holds 600 cards and 6 cards/page</em>, we can tell that there are <em>100 pages</em>.

From that, we know that 45% are empty, which means <em>55% of all of the pages have cards</em>.

55% of 100 is 55. Therefore, 55 pages have baseball cards.

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Dahasolnce [82]

Answer:

695

Step-by-step explanation:

6 0
2 years ago
A pharmacist wants to make 36ml of a 65% hydrogen peroxide solution. how many pls of 75% hydrogen peroxide must he mix with 57%
faltersainse [42]

Answer:

16 mls of the 75% solution and 20 mls of the 0.57% solution.

Step-by-step explanation:

Set up a system of equations:

Let x = volume of 75% solution and y be volume of 57% solution

0.75x + 0.57y = 36*0.65

0.75x + 0.57y = 23.4.......(1)

x + y = 36.........(2)

From equation (2):

y = 36 - x

Substituting this into equation(1):

0.75x + (0.57(36 - x) = 23.4

0.75x + 20.52 - 0.57x = 23.4

0.18x = 23.40 - 20.52 = 2.88

x = 2.88/0.18

x = 16

so from equation (2): y = 36-16 = 20.

8 0
3 years ago
Jeans are reduced from 28.00 to 18.20 during a sale at a department store. What percentage was the original price reduced?
Natali [406]

Answer:

The original price was reduced 35%

Step-by-step explanation:

we know that

Jeans are reduced from $28.00 to $18.20

In this problem

The original price of 28.00 represent 100%

so

using proportion

Find out what percentage represent the difference between the original price and the new price

\frac{28}{100}=\frac{28-18.20}{x}\\\\x=100(9.8)/28\\\\x=35\%

therefore

The original price was reduced 35%

6 0
3 years ago
The graph represents how much money Emma makes selling bracelets. The table shows how much Jack makes selling comic books. Which
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Answer:

Bracelets are the same price as the comic books

Step-by-step explanation:

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