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kaheart [24]
3 years ago
10

A gym has three trainers, Aldo, Bertha, and Coco, who each have 1/3 of the new members. A person who trains with Aldo has a 60%

chance of being successful, a person who trains with Bertha has a 30% chance of being successful and a person who trains with Coco has a 90% chance of being successful. What is the probability that a successful member had Bertha as her trainer?
Mathematics
1 answer:
GarryVolchara [31]3 years ago
8 0

Answer:

1/10

Step-by-step explanation:

P(a successful member

had Bertha as her trainer)  = P(Bertha being you trainer) x P(being successful if

                                                trained by Bertha)

                                             = 1/3 x 30/100

                                             = 30/300

                                             = 1/10

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the perimeter of a rectangle is 192 ft. the ratio of its length to its width is 7:5 what are dimensions of the rectangle?
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Answer:  Hence the dimensions are 56 ft and 40 ft.

Step-by-step explanation:

Alright, lets get started.

The ratio of sides of rectangle is given as 7:5.

It means, the length of rectangle is : 7x

It means, the width of rectangle is : 5x

So the perimeter of rectangle will be : 2(length + width)

Plugging the value of sides length and width,

the perimeter of rectangle will be : 2\times(7x+5x)

the perimeter of rectangle will be : 2\times 12x

the perimeter of rectangle will be : 24x

As per question, the given perimeter is 192, so

24x=192

Dividing 24 in both sides,

x=\frac{192}{24}

x=8

Hence the length of rectangle will be : 7\times 8 =56

Hence the width of rectangle will be : 5\times 8 =40

Hence the dimensions are 56 ft and 40 ft.  :   Answer

Hope it will help :)

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Step-by-step explanation:

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