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denpristay [2]
3 years ago
8

kalvin's mother tells him that the chance of a coin showing heads when he tosses it is 1/2. does this mean that every time he to

sses a coin twice, he will get one head and one tail.
Mathematics
1 answer:
MissTica3 years ago
5 0

No it is not necessary that Kelvin will get one head and one tail every time

<u>Explanation:</u>

Probability in math is equal to favorable outcomes/total outcomes

The coin has two sides a head and a tail. When we flip a coin we have 50-50 possibility of getting a head and a tail. It means with every toss we have 1/2 possibility of getting head as well as tail.

But this does not mean that when we toss a coin twice we will get one head at one toss and one tail at another toss.

There is a possibility of getting both heads as well as both the tails.

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Ms. O'Brien makes her own cleaning solution to clean her floors! (yet, she can't clean her measuring cups?) She mixes 8 cups of
Elden [556K]

Answer:

To make a gallons,

Ms. O'Brien needs

12 8/10 cups of water or 12.8 cups of water

3 1/5 cups of water or 3.2 cups of vinegar

Step-by-step explanation:

Ms. O'Brien makes her own cleaning solution to clean her floors! (yet, she can't clean her measuring cups?)

She mixes 8 cups of water with 2 cups of vinegar.

Hence: The total number of cups for the cleaning mixture = 8 cups of water + 2 cups of vinegar = 10 cups

If she wants to make a 1 gallon mixture of her cleaning solution, how much water and how much vinegar should she add?

Note that: There are 16 cups in a gallon

Hence:

For number of cups of water:

10 cups of cleaning mixture = 8 cups of water

16 cups of cleaning mixture = x

Cross Multiply

10x = 16 × 8

x = 16 × 8/10

x = 12 8/10 cups of water or 12.8 cups of water

For the number of cups of vinegar

10 cups of cleaning mixture = 2 cups of water

16 cups of cleaning mixture = x

Cross Multiply

10x = 16 × 2

x = 16 × 2/10

x = 3 1/5 cups of water or 3.2 cups of vinegar

Therefore, to make a gallon

Ms. O'Brien needs

12 8/10 cups of water or 12.8 cups of water

3 1/5 cups of water or 3.2 cups of vinegar

5 0
2 years ago
I really need help!! <br> what number is equivalent to the fraction?<br> 5<br> 9
dangina [55]

Answer:

0.55555555555555555555555555556

<em>(The 5 is repeating, so I rounded the last digit to 6.)</em>

Step-by-step explanation:

Divide 5/9. You get 0.5555... and the 5 is repeating.

5 0
3 years ago
Help if correct will give brainless
Jobisdone [24]
This is Very good correct
7 0
2 years ago
What is -6 divided by -7
Alexeev081 [22]

Answer:

0.85714285714

Step-by-step explanation:

Use a calculator in google.

7 0
3 years ago
Read 2 more answers
Yvonne had a rope that measured 2/5 long. She
yawa3891 [41]

Answer:

Number of smaller ropes she can make from the larger rope = 2/3

Step-by-step explanation:

Total length of rope = 2/5 ft

Length of smaller rope = 3/5 ft

How many smaller ropes can she make from the larger rope?

Number of smaller ropes she can make from the larger rope = Total length of rope / Length of smaller rope

= 2/5 ÷ 3/5

= 2/5 × 5/3

= (2*5)/(5*3)

= 10/15

= 2/3

Number of smaller ropes she can make from the larger rope = 2/3

7 0
3 years ago
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