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Aleks [24]
3 years ago
13

Michelle bought some pinwheels for a dollar and paid in dimes .How many dimes did she use.Explain.

Mathematics
1 answer:
Mila [183]3 years ago
6 0
100/10=10
Michelle used 10 dimes because a dime is worth 10 cents, a dollar is 100 cents, 10 dimes is equal to 100 cents.
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7 0
3 years ago
Worldwide, the proportion of babies who are boys is about 0.51 . Let the random variable X represent the number of boys in five
solmaris [256]

Answer:

mean = 2.55

Standard deviation = 1.118

Step-by-step explanation:

Probability of babies who are boys

P = 0.51

Then we have q = 1-p

= 1-0.51

= 0.49

We have n = 5

We calculate the mean as:

np

= 0.51x5

= 2.55

Therefore mean = 2.55

The standard deviation

= √variance

= √npq

= √0.51x5x0.49

=√1.2495

= 1.118

6 0
2 years ago
The price of one gallon of milk has increased from$3.24 to $4.06. What is the percentage increase
AlladinOne [14]
25.3% 

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then do that number divided by the original number then times by 100
8 0
3 years ago
Determine the promotional price of each item at each store
MAXImum [283]

Answer:

Step-by-step explanation:

Original price of the music box = $80

Price after 20% discount = Original price - discount

                                         = 80 - 20% of 80

                                         = 80 - (\frac{20}{100}\times 80)

                                         = 80 - 16

                                         = $64

Price after 40% discount = 80 - 40% of $80

                                         = 80 - 32

                                         = $48

Original price of A faux Ming vase = $60

Price after 20% discount = Original price - discount

                                         = 60 - 20% of $60

                                         = 60 - 12                                    

                                         = $48

Price after 40% discount = Original price - discount

                                         = 60 - 40% of 60

                                         = 60 - 24

                                         = $36

8 0
3 years ago
What is 105.6 L/h = to L=min
ANEK [815]
Divide by 60 so 105.6/60=1,76 L/min
8 0
3 years ago
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