0.181818… = 18 (0.010101…)
… = 18 (0.01 + 0.0001 + 0.000001 + …)
… = 18 (1/100 + 1/100² + 1/100³ + …)
… = 18 (1 + 1/100 + 1/100² + 1/100³ + …) - 18
Then you have
Answer: 31
Step-by-step explanation:
Answer:
70
Step-by-step explanation:
91 ÷ 1.3 = 70
Equation 1:
Answer:
x = 1.22
Step-by-step explanation:
x = 1.22
Equation 2:
Answer:
x = -13.97
Step-by-step explanation:
x = -13.97
The number of ways they can be seated in a row if both families want to sit together is 2 ways
Given that two families with four people in each family go to a movie theater, in order to determine the number of ways they can be seated in a row if both families want to sit together
We will use the permutation rule since it is about the arrangement.
We will take 4 people as 1 group and the other 4 people as another group.
If the groups are to sit together, the number of ways this can be done is 2!
2! = 2 * 1
2! = 2ways
This shows that the number of ways they can be seated in a row if both families want to sit together is 2 ways
Learn more here: brainly.com/question/25500566