The fact that the first chosen student was a girl is already decided, so there is no need to find the probability of that happening. There are a total of 13+10, or 23 students. A girl was already selected, so that leaves 22 students. The chance that a boy is chosen is 10/22, or 5/11.
Answer:
35*35=1225
37*37=1369
so a^+1225=1369
a^2=144
answer is the first option
Step-by-step explanation:
I really don't know where on earth my pen is;(((
Answer: 5 pounds
Step-by-step explanation: 90 - 47.65 ÷ 8.47 = 5
Okay, first figure out how much one cone-shaped cup can hold, this is the volume. Use the formula for the volume of a cone:
Plug in what we know, remember that the radius is half the diameter(9/2 = 4.5), and use 3.14 to approximate for Pi:
Just simplify the exponent and multiply them all:
So this is the amount that one cone-shaped cup holds. You have 8 gallons of lemonade, let's convert this to cubic centimeters:
Now divide the amount that fits in one cup by the total amount to find out how many cups you need to sell to sell all the lemonade:
So you need to sell approximately 119 paper cups to sell all of the lemonade.