Answer:
7 1/2 cups
Step-by-step explanation:
20 gallons is ten times 2 gallons.
Ten times the amount of water will require ten times the disinfectant (we assume).
... 10 × 3/4 cup = 30/4 cups = 7 1/2 cups
310-85=225
225/25=9
Therefore it will take her 9 weeks
Answer:
7/145
Step-by-step explanation:
We have
9 chocolate chip cookies
7 peanut butter cookies
7 sugar cookies
7 oatmeal raisin cookies.
9+7+7+7 = 30 cookies.
What is the probability that Krystal randomly selects a peanut butter cookie from the bag, eats it, then randomly selects another peanut butter cookie?
Initially, there are 30 cookies, 7 of which are peanut butter cookies. So the probability that Krystal selects a peanut butter from the bag is 7/30.
Suppose she selected the peanut butter cookie. Now there are 29 cookies, of which 6 are peanut butter. So the probability that the second one is a peanut butter cookie is 6/29.
Probability that both are peanut butter cookies:
Multiplication

Answer:
8n
Step-by-step explanation:
8n is the factor of both 8 and n. in the following question.
Factor ⇒ If a number, that use to divide another number and we get zero as a remainder, the number is called the factor of another number.
In this question, 8n is divided by both 8 and n and also we get zero as a remainder.
Therefore, 8n is the factor of both 8 and n .
Answer:
B
Step-by-step explanation:
0.9/1=0.9
13.5/15=0.9
8/5=1.6