Sam has a beaker with a capacity of 50 milliliters. He puts 20 milliliters of alcohol
in the beaker. The inequality x + 20 < 50
can be used to determine x, the number
of millimeters of liquid that can then
be added to the beaker. Which number
line best represents the solution to the
inequality?
F
0
0 5 10 15 20 25 30 35 40 45
G
+ +
5 10 15 20 25 30 35 40 45
H
+
+ ++
5 10 15 20 25 30 35 40 45
0
+ +
0 5 10 15 20 25 30 35 40 45
OF
G

Compare the cost of the bike trips from the two companies shown. for both the cost in a linear function of the number of days which statements is true

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?