Math Facts
Unit of measurement America uses
You and a friend go to a restaurant. Your bill totals to $72.31 and you want to tip 20%. 20% of your bill is (round to the second decimal space)
What is 14.46?
Meredith adds the same amount of money to her savings each month, it is growing _____
What is linearly?
A student randomly selects a marble from a bag of 50 marbles, 30 marbles are red and 20 marbles are blue. The target population of this survey is
What is the 50 marbles?
The original price of a shirt was $11, it was marked down to $7. The discount percent was... (round to the second decimal space)
First five digits of pi
What is 3.1415?
9 feet of 5 inch wide crown molding costs $13. For 117 feet of crown molding it'll cost
What is $169?
Consider a population that grows recursively using the formula Pn= Pn-1 + 85, with an initial population of P0= 40. P1 is...
What is 125 people?
The measure of variation based on how far each data value deviates from the mean.
What is the standard deviation?
A brand of cereal has 1.4 mg of iron in each serving. They changed their recipe to have 1.1 mg of iron per serving. The percent decrease in iron is (round to the second decimal place)
What is 21.43%?
Mathematician who established the theory of triangle
Who is Pythagoras?
A train travels 114 kilometers per hour. In 4 seconds it covers this many meters. (round to the nearest meter)
What is 127 meters?
The population of grasshoppers is growing linearly. The initial population is P0= 6 and the population after 8 weeks in P8= 54. Write the explicit formula.
What is Pn= 6 + n(6)
Name four measures of variation (not measure of center).
What are the range, percentiles, IQR, standard deviation?
A store has a clearance rack marked down 40% from the original price. They're having a sale advertising an additional 25% on clearance items. You pay this percent of the original price.
What is 45%?
The famous six unsolved math problems.
What are the millennium prize problems?
A 20 ft by 25 ft patio costs $2,378 to install. Estimate the cost of having a 25 ft by 27 ft patio installed.
What is $3.210.3?
A city currently has 135 streetlights. The city council has decided to add 3 new streetlights each week for 49 weeks. After 49 weeks there is this many streetlights.
What is 282 streetlights?
Consider the data set: 4, 9, 4, 7, 1, 7, 7, 7, 5, 2, 3. Find the mean and the median. Round to first decimal place if needed.
What is 5.1 and 5?
You have a savings account with a 1.2% monthly interest rate. You start with $450, in 7 months you will have. (round to the nearest dollar).
What is $489?
π/6 equals (blank) degrees in a circle
What is 30 degrees?
You want to put a 4 inch thick layer of topsoil for a new 26 ft by 32 ft garden. The dirt store sells by the cubic yards. The store only sells in increments of 1/4 cubic yards. This many cubic yards are needed
What is 10.5 cubic yards?
Diseases grow exponentially. In the early days of smallpox the growth factor was around 2.1. In 1983, about 1800 people in the U.S. died of smallpox. Considering this, in 2003 this many people died. Round to the nearest whole number.
What is 5,007,931,730 people?
Every year, the students at a school are given a musical aptitude test that rates them from 0 (no musical aptitude) to 5 (high musical aptitude). This year's results were: 1 person got a zero, 3 people got a 1, 4 people got a 2, 4 people got a 3, 3 people got a 4, and 6 people got a 5. Find the average aptitude score, and the median aptitude score. Round to the first decimal place.
What is 3.1 and 3?
Your friend has an 85% average before the final exam for a course. That score includes everything but the final, which counts for 25% of the course grade.
The best score your friend can earn is...
Minimum score your friend can earn to get a 75% in the course is....
What is 88.75% and what is 45%?