A rate is a non simplified ratio so a rate could be
4:2=rate
the UNIT rate=the simplest for or 2:1
so exg
300 jumps in 3 days=rate
100 jumps per day=unit rate
USE G O O G L E you will get your answer quicker than a jiffy on a stick:)
X and y represent the two students.
Teacher wants to spend at least $5 in each of x and y. That means x or y could be either equal to 5 or higher than 5.
x ≥ 5
y ≥ 5
Teacher only spends under $30. That means the sum of x and y couldn't be equal to higher than 30. It should be lower than 30.
x + y < 30
The correct answer is option D
Find the total of male students:
4 + 6 + 2 + 2 = 14 total males.
There are 2 male juniors.
The probability of a male being a junior is 2/14 = 1/7 = 0.143 = 14.3 = 14%