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Otrada [13]
2 years ago
11

A child has a bottle full of pennies, nickels,dimes and quarters. There are twice as many quarters as pennies, four times as man

y nickels as pennies, and five times as many dimes as nickels. How many more dimes does the child have than quarters?
Mathematics
1 answer:
s344n2d4d5 [400]2 years ago
3 0

Answer:19x

Step-by-step explanation:

Take x as the value of pennies

If there are twice as many quarters as pennies then the explanation should be

Pennies =x

Quarters =2x

If there are 4 times as many nickels as pennies then the explanation is

Pennies =x

Nickels =4x

If there are 5 times as many dimes as nickels then the explanation is

Nickels =4x

Dimes=20x

So the values of them all is

Pennies =x

Nickels =4x

Dimes =20x

Quarters =2x

So to get how many more dimes does the child have than quarters you subtract

20x-2x=19x

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The stem-and-leaf plot below shows the number of pages each student in the class read the previous evening. A stem and leaf plot
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Answer:

75% students read less than 35 pages.

Step-by-step explanation:

The stem and leaf plot is given below

0    |   5   0   5   8  

1     |   2   3   5   8   8   9

2    |   2   4   6   7   7   7

3    |   3   5   6

4    |   2   4   6

5    |   7

Count the students in each row.

Row 1 = 4 students

Row 2 = 6 students

Row 3 = 6 students

Row 4 = 3 students

Row 5 = 3 students

Row 6 = 1 student

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75% of 23 students ≅ 17 students

From the stem and leaf plot, 17th student read 33 pages while 18th student reads 35 pages.

Which means

75% students read less than or equal to 33 pages.

OR

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So 10^-2 x 10^-1 = -2 + -1

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So = 1/10^3

Meaning the missing power is -1  

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2 years ago
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