Expressions an Equations
Ratios and Percents
Numbers make sense
(number sense)
(number sense)
Vocabulary
Formulas
100
Which expression represents the sum of (2x – 5y) and (x + y)?
3x – 4y
100
Last year 950 people attended a towns annual parade. This year 1,520 people attended. What was the percent increase in attendance from last year to this year?
A. 37.5%
B. 57.0%
C. 60.0%
D. 62.5%
C. 60.0%
100
What's the value for the expression
-0.75 - (-2/5) + .40 + (-3/4)
A. –1.5
B. –0.7
C. 0.8
D. 2.3
B. -0.7
100
The rate of one of something
Unit Rate
100
Constant of proportionality
y/x=k
200
What expression is equivalent to -3(4x – 2) – 2x?
-14x + 6
200
A recycling plant processes an average of 13 ton of glass each minute. At approximately what rate does the recycling plant process glass, in tons per day? (1 day = 24 hours)
A. 20
B. 180
C. 480
D. 4,320
c. 480
200
Which expression is equivalent to 4 – (–7)?
A. 7 + 4
B. 4 – 7
C. – 7 – 4
D. – 4 + 7
A. 7 + 4
200
The whole in a fraction
Denominator
200
What is the circumference of a circle?
300
Mike took a taxi from his home to the airport. The taxi driver charged an initial fee of $6 plus $3 per mile. The total fare was $24, not including the tip. How many miles did Mike travel by taxi on this ride?
6
300
Last week Len spent $18 to bowl 4 games. This week he spent $27 to bowl 6 games. Len owns his bowling ball and shoes, so he only has to pay for each game that he bowls. If each of these bowling games costs the same amount of money, what is the constant of proportionality between the money spent and the number of games played?
A. 1.5
B. 2.0
C. 4.5
D. 9.0
C. 4.5
300
Scientists determined that Antarctica’s average winter temperature was – 34.44ºC. The difference between the temperature and Antarctica’s Highest recorded temperature was 49.44 degrees. What was Antarctica’s highest recordered temperature?
A. –83.88 ºC
B. –15 ºC
C. 15 ºC
D. 83.88 ºC
C. 15 ºC
300
"per hundred"
Percent
300
Simple Interest Formula
I= PRT
400
A company ordered 10 boxed lunches from a deli for $74.50. each boxed lunch cost the same amount. Which equation represents the proportional relationship between y, the total cost of the boxed lunches, and x, the number of boxed lunches?
7.45x = y
400
Charis invested $140. She earned a simple interest of 3% per year on the initial investment. If no money was added or removed from the investment, what was the amount of interest Charis received at the end of two years?
A. $4.20
B. $6.00
C. $8.40
D. $12.60
c. $8.40
400
The initial balance of a savings account was $275. After which transactions will the balance of the savings account be the same as the initial balance?
A. A withdrawal of $232 followed by a deposit of $132
B. A deposit of $278 followed by a withdrawal of $278
C. A withdrawal of $115 followed by a deposit of $312
D. A deposit of $205 followed by a withdrawal of $317
B. A deposit of $278 followed by a withdrawal of $278
400
the original amount of money put in or invested
Principal
400
formula for area of a circle
500
For her cell phone plan, Heather pays $30 per month plus $0.05 per text. She wants to keep her bill under $60 per month. Which inequality represents the number of texts, t, Heather can send each month while staying within her budget?
t < 600
500
Jeanette purchased a concert ticket on a web site. The original price of the ticket was $75. She used a coupon code to receive a 20% discount. The website applied a 10% service fee to the discounted price. Jeanette’s ticket was less than the original price by what percent?
A. 7%
B. 10%
C. 12%
D. 28%
C. 12%
500
What is the value of the expression below?
3/8 + (-4/5) + (-3/8) + 5/4
9/20
500
A mathematical statement consisting of an equal symbol between two algebraic expressions that have the same value.
Equation
500
Formula to find the whole in a percent
P=% x n