You check 20 batteries.Fourteen of the batteries do not have a charge. What is the experimental probability that the next battery you check does not have a charge?

Step-by-step explanation:

Given that

Number of batteries that do not have a charge = 14

Total number of batteries = 20

To find:

Experimental probability that the next battery checked does not have a charge = ?

Solution:

First of all, let us learn about the definition of experimental probability.

Probability is the chances of happening of an event.

Formula for probability of happening of an event E is given as:

Here we have to find the probability of checking a battery that has no charge.

So, number of favorable cases = Number of batteries that do not have a charge = 14

AND

Total Number of cases = Total number of batteries to be checked = 20

So, the required probability is:

48

Step-by-step explanation:

Perimeter of square = 4 x 6x

Perimeter of square = 24x

Perimeter of rectangle = 2l + 2w

Perimeter of rectangle = 2(2x+4) + 2(16)

Perimeter of rectangle = 4x + 8 + 32

Perimeter of rectangle = 4x + 40

Perimeter of rectangle = Perimeter of square

4x + 40 = 24x

-4x             -4x

40 = 20x

20     20

x = 2

Perimeter of square = 24x

Perimeter of square = 24(2)

Perimeter of square = 48

Perimeter of rectangle = 4x + 40

Perimeter of rectangle = 4(2) + 40

Perimeter of rectangle = 8 + 40

Perimeter of rectangle =48