All about percentages
What's the word again?
Transforming Numbers
I have an equation for that
100
A person bought a car for 20,000 dollars in a state with a 7% sales tax. The tax added was 1,500 dollars. Were they overcharged?
Yes, the tax should have been 1400 dollars
100
What is the largest source of revenue for the federal government, that also happens to be a progressive tax where as people have higher incomes the percent that income is taxed increases?
Income Tax - which all workers pay into, but some get money back
100
What is .5 when converted to percentage?
50%
100
John scores 4 points per game (g). What is a function in function notation for Points (function p()) that can be used to determine the number of points John has after g games?
P(g) = 4g
200
A diner at a restaurant finished eating and recieved the check. The price with tax was 73 dollars. The customer added a 20% tip. How much did they pay?
87.6 dollars
Calculated by multiplying 73 by 1.2 since the check is 100% and tip was 20% for a total of 120% turned into a decimal of 1.2.
200
Any number that can be written as a fraction?
A rational number
200
What is 9/20 when converted to decimal form?
.45
200
Peyton is saving to buy a car. She has 1200 dollars and makes 300 dollars a week. What is a function in function notation that Peyton can use to determine how much money she will have after (w) weeks?
F(w) = 300w +1200
300
Rachel has 18% of her check removed from income tax and 7.5% removed for payroll taxes. If she makes 25,000 dollars how much is removed from her check?
6,375 dollars
300
What is the mathematical term for a process where each input has one and only one output?
What is a function
300
What is .07 when converted to fraction form?
7/100
300
Quinton has 850 dollars in his back account. He is currently spending 20 dollars a day more than he is making. Write a function in function notation to track how much money he has left in his back account and determine how many days until he no longer has any money left.
Use M() as the name of the function and D as the variable for days.
M(D) = 850 - 20D, Quinton will run out of money in 43 days.
400
John earned 800 dollars. How much will be deducted for payroll taxes according to the table above?
61.2 dollars
Multiply the gross wages by the employee paycheck deduction 7.65%. 800 * .0765 = 61.2
400
What are the vertical and horizontal lines on the coordinate plane that cross at the origin?
The Y- Axis and the X- Axis
400
What is 45% in decimal and fraction form?
45/100 (or reduced to 9/20) and .45
400
John has a varied work schedule and works a minimum of 10 hours a week, and a maximum of 45 hours. He makes 17 dollars an hour, minus 12 dollars a week for bus pass to get to and from work. Write a function in function notation for John's earnings and indicate the domain and range of the function.
E(H) = 17*H -12
Domain is [10,45]
Range is [158, 753]
500
If Julia makes 32500 dollars. How much of her pay will she have left after payroll deductions are removed based on the percentages above?
30,013.75 dollars
You can either multiply 32,500 by .0765 and then subtract that total from 32500
or
You can minus 100% by 7.65% to get 92.35% and then convert to decimal .9235 and multiply that by 32500
500
What are the term for all valid numbers that can be input into a function and for all the possible valid outputs from a function?
Domain (inputs) and Range (outputs)
500
In the school there are 225 students of those students 35 are wearing green socks. What is a fraction, decimal and percentage that represent this scenario?
Fraction - 35/225 or 7/45
Decimal - 15.5555...
Percentage - 15.56%
500
What is the domain and range of the graphed function below?
Domain [10,30]
Range [230, 670]