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mash [69]
3 years ago
14

List the different combinations of heads and tails that can occur when 33 ordinary coins are tossed. Use h for heads and t for t

ails.
One combination is thtt. List the other​ combinations, taking order into account.
Mathematics
1 answer:
Crank3 years ago
4 0
There's thtt, <span>hh,ht,th,tt</span>

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Las edades de dos hermanos tienen una razón de 2 a 1. Cuando transcurran 4 años, la razón entre sus edades será de 8 a 6. ¿Cuánt
Nataly [62]

Answer:

The age of brothers are 4 years and 2 years respectively.

Step-by-step explanation:

We are given that the ages of two brothers have a ratio of 2 to 1. When 4 years have passed, the ratio of their ages will be 8 to 6.

Let the age of the first brother be 'x years' and the age of the second brother be 'y years'.

So, according to the question;

  • The first condition states that the ages of two brothers have a ratio of 2 to 1, that means;

                                      \frac{x}{y} =\frac{2}{1}  

                                      x=2y  -------------- [equation 1]

  • The second condition states that when 4 years have passed, the ratio of their ages will be 8 to 6, that means;

                                       \frac{x+4}{y+4}=\frac{8}{6}

                               6({x+4})=8}(y+4)

                               6x+24=8y+32

                               6(2y)+24=8y+32

                               12y-8y=32-24

                                    4y=8

                                     y=\frac{8}{4} = 2 years

Putting the value of y in equation 1 we get;

                                     x = 2y

                                      x = 2 \times 2 = 4 years

Hence, the age of brothers are 4 years and 2 years respectively.

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3 years ago
Suppose an item is originally
Sonbull [250]

Answer:$21.207 or $21.21

Step-by-step explanation:

You would take $24.95 *85% (that is how much you are going to pay) and the result is your answer

4 0
3 years ago
Can anybody help out this math question it’s about graph please
malfutka [58]

Neither one of the slopes are going to be minus. It means you are travelling backwards in time, which is wonderful if you are a sci-fi fan, but not so good if you are Sharon. A and D has Sharon going from 70 to 0. That can't be happening so both are wrong.


Now you have to decide between B and C. The intersection point has Sharon going upwards until she is 20. She started out at 70. The graph has John starting at 70. That's not right.


So we've eliminated A,D and now C.


The answer must be B. They meet when Sharon is 90 and John is about 22.5 which is what it should be.

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Find the discriminat of each quadratic equation then state the number and type of solutions
Julli [10]
Hello : 
the discriminat of each quadratic equation : ax²+bx+c=0 ....(a <span>≠ 0) is :
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2 ) Δ = 0 : one solution : x = -b/2a
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8 0
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Pls help me complete this
s2008m [1.1K]

Answer:

wow thats alot of "stuff"

Step-by-step explanation:

7 0
3 years ago
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