probability
What is the probability of landing on tails (in percent form) when flipping a coin?
50%
what is an integer?
whole numbers and their opposites
what is 1.35 as a percentage
135%
Factor 25x + 5 completely
5 (5x + 1)
There are 3 red, 2 white and 5 blue marbles in a bag. What is the probability (in lowest terms) of choosing a white marble?
2/10 = 1/5
You are standing in a hole that is 4 feet deep. What integer represents this number?
-4
What is 4/5 as a percent?
80%
Give an equation that can be used to represent the sentence three less than the product of five and a number is -8
5n - 4 = -8
Which of these is a compound event?
A) rolling a 7 on a set of dice
B) rolling a 2 on a number cube
C) getting heads on a coin
A
What is the cube root of 130 to the nearest integer?
5
(5x5x5=125)
40% of the population of Ermine is male. If there are 2000 people in the city, how many males are there?
0.4 x 2000= 800
The cost of a cell phone plan can be represented by the expression 12 (20 + 1.50m). What is the coefficient in the simplified expression?
18
12(20 + 1.50m) = 240 + 18m, so 18 is the coefficient
What is the probability of getting heads twice in a row when flipping a coin?
1/2 x 1/2 = 1/4
Which of the following is not an integer?
-11 -10/5 0 5.2 43
5.2
Emma invested $600 in the bank for 2 years, earning 5% interest. How much money will she have in the bank after the 2 years?
$660
(600 x .05 x 2= 60; 600+60 = 660)
The relation {(0,2), (1,3), (2,4)} is not a function when which ordered pair is added to the set?
(3,5) (5, 3)
(4,5) (2, 5)
(2,5)... already has another output for the input value of 2
What is the probability of getting a number greater than 1 when a number cube is rolled?
5/6= 83 1/3%
The product of three consecutive whole numbers is 990. What are the numbers?
9, 10, 11
Karalina invested $1500 for 4 1/2 years. She earned $675 in simple interest. What was the annual interest rate to the nearest percent?
10%
[675 = 1500r(4.5) ]
Neptune's distance from the sun is about 2,800,000,000. What is that number in scientific notation?
2.8 x 109