How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide

Answers

Answer 1

Answer: um 12 liters i would think cause you double it

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Using a twenty sided number cube, what is the probability that you will roll an even number or odd prime number? the number 1 isnt an odd prime. round to three decimals. A) 0.85
B) 0.8
C) 0.9
D) 0.75

Answers

0.85 is the probability that you will roll an even number or odd prime number

What is Probability?

It is a branch of mathematics that deals with the occurrence of a random event.

A twenty-sided number cube has 10 even numbers (2, 4, 6, 8, 10, 12, 14, 16, 18, 20) and 7 odd prime numbers (3, 5, 7, 11, 13, 17, 19).

To find the probability of rolling an even number or an odd prime number

We need to calculate the total favorable outcomes (even numbers and odd prime numbers) divided by the total possible outcomes (numbers 1 to 20).

Total favorable outcomes = 10 (even numbers) + 7 (odd prime numbers) = 18

Total possible outcomes = 20

Probability = Total favorable outcomes / Total possible outcomes = 17 / 20 = 0.9

Hence, 0.85 is the probability that you will roll an even number or odd prime number

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Answer:

0.85

Step-by-step explanation:

total samples cases = 20

chances that are even or odd prime are 17 chances

2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20

probability = 17/20

= 0.85

5)Trevon's school is selling tickets to the annual dance competition. On the first day of ticket salesthe school sold 5 senior citizen tickets and 8 student tickets for a total of $94. The school took in
$164 on the second day by selling 10 senior citizen tickets and 13 student tickets. Find the price
of a senior citizen ticket and the price of a student ticket