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tamaranim1 [39]
4 years ago
8

If i flip three fair coins what is the probability that exactly one of the coins will end up heads​

Mathematics
2 answers:
Ipatiy [6.2K]4 years ago
7 0

Answer:

about 50 percent

Step-by-step explanation:

hope it helps!

Nonamiya [84]4 years ago
3 0

Answer: 3/6 or simplified 1/2

Step-by-step explanation:

Since there are 3 coins we times the 3 by how many sides we have in 1 coin:

3×2=6

So there are 6 sides, so that is the bottom number (/6)

Then how many times can we land on heads? 3

So that is the top number:

3/6

Which can be simplified to 1/2

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ohn lives 3/8 mile from the Museum of Science. Sylvia leaves 1/4 mile from the Museum of Science. How much closer is Sylvia from
Sonja [21]

Answer: 1/8 of a mile

Step-by-step explanation: because 3/8 minus 1/4 is 1/8

4 0
4 years ago
For a sphere with a radius of 8, what is the surface area
stepan [7]

Answer:

64

Step-by-step explanation:

4 0
4 years ago
Ian bought a discounted item for $50, if it was originally $75. What was the discount rate ? round to the nearest percent
kogti [31]

Answer:

Discount rate=33%

Step-by-step explanation:

Step 1

Determine the discounted amount as shown;

A=I-F

where;

A=discounted amount

I=initial price/original price

F=final price after discount

In our case;

A=unknown

I=$75

F=$50

replacing;

A=(75-50)=25

The discounted amount=$25

Step 2

Determine the discount rate using the formula;

Discount rate=(discount amount/original amount)×100

Discount rate=(25/75)×100=33.33%

Discount rate=33%

3 0
3 years ago
The owners of the Burger Emporium are looking for new supplier of onions for their famous hamburgers. It is important that the o
djverab [1.8K]

Answer:

Follows are the solution to this question:

Step-by-step explanation:

Let assume that X and Y reflect the diameters of onions by companies A and B.

\to P(9

                          = P(-1.0833 < Z < -0.25)\\\\= P(Z < -0.25) - P(Z

\to P(9

                          = P(-1.7778 < Z < -0.6667)\\\\= 0.2148\\\\

As a result, onions through company A are chosen and they're more likely to be accepted.

6 0
3 years ago
Kamila buys a dress for £30 in a sale. It was advertised "25%off". Kamila says"25% of £30 is £7.50 so i saved £7.50". Explain wh
sveta [45]

Answer:

She was wrong in her analysis because the sales discount of 25% is the discount on the original cost of the dress and not the purchasing cost of the dress as explained below:

Step-by-step explanation:

From the question:

Purchasing cost price of the dress = £30

However, this cost (£30) was after a 25% Sales Discount        

It, therefore, implies that £30 is equal to 75% of the cost price

75% of the original cost price  = £30

100% of the original cost price = (30 x100%)/75%

   Original cost price                 = £40

Therefore the 25% discount / savings on the cost

                                                     = £ (40-30)

                                                      = £10    

She saved £10 by buying the dress at £30 instead of the original cost of £40                                        

                                           

6 0
3 years ago
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