Answer:
1) Find the probability that a chosen book is nonfiction and hard-covered. P(N ∩ H) = 4/20
2) Find the probability that a chosen book is hard-covered. P(H) = 11/20
3) Calculate the conditional probability. = 4/11
---------------------------------------------------------------------------------------------
1.) 4/20
2.) 11/20
3.) 4/11
Revenue > Cost
R(x) > C(x)
0.50x > 10+0.20x
0.50x-0.20x > 10
0.30x > 10
x > 10/0.30
x > 33.333 which is approximate
Round up to the nearest whole number to get x = 34. You need to sell at least 34 cups of lemonade to have the revenue R(x) be larger than the cost C(x)
Answer: 34
Well 9×10 is 90, 90+46 is 136. the paint covered 136 square feet
Answer:
308.2 - 293.8 = 14.4 km
14.4 - 2.3 = 12.1
So the library is 12.1 km from the park.