If you spin the spinner 18 times, what is the best prediction possible for the number of times it will not land on green?

Mathematics

1 answer:

Sunny_sXe [5.5K]3 years ago

6 0

Answer:

The (prediction) for the number of times the spinner wont land on green is 14 times.

Step-by-step explanation:

First you need to find the possibility it will land on green. since there are 2 green spaces out of 9 possible spaces, there is a 2/9 chance you will get green from spinning. This means there is a 7/9 chance you won't get green from spinning once. By multiplying the fraction by the number of times you will spin, it is most likely you will get green 14 times out of 18 spins.

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the units digit of a two-digit number is twice the tens digit. If the digits are reversed, the new number is 9 less than the ori

Anton [14]

Answer:

Step-by-step explanation:

Here is the correct and complete question: The units digit of a two-digit number is twice the tens digit. If the digits are reversed, the new number is 9 less than twice the original number. What is the original number?

Lets assume the original number be"10y+x". (x is unit digit and y is 10th digit)

∴ if number is reversed then resulting number be "10x+y".

As given: x= 2y

and $10x+y= 2(10y+x)-9$