Section 1
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solve: (8/5)x = 6
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Cards (121)
Section 1
(50 cards)
solve: (8/5)x = 6
15/4
A cat owner gets a vitamin prescription from his veterinarian that lists the dosage as 5 mL twice a day. The bottle contains 300 cc. How many days will the bottle last?
30 5x2=10 a day then 300c/10=30
round 53,642 to thousands place
54,000
round 17/35 to ones place
0
Which of the following lists numbers in decreasing order: -2, -0.2, 2 (2/10), 2? a. -2, -0.2, 2, 2 2/10 b. 2 2/10, 2, -2, -0.2 c. -2, 2, -0.2, 2 2/10 d. 2 2/10, 2, -0.2, -2
d
solve: (12-2) / (11-6)
2
Which of the following estimates the answer to: (418.6 * 3.876)/(53.7)? a. (419*4)/(54) b. (400*4)/(50) c. (4*4)/(5) d. (400*3)/(50)
b
round 6.008 to hundredths place
6.01
While shopping, you find a shirt that is marked 30% off. If the regular price is $45, which of the following is the reduced price? a. $13.50 b. $15 c. $31.50 d. $33.75
c. 30\100=0.3 then 0.3x45=13.5 then 45-13.5=31.5 total
round 17/3 to ones place
6
solve: x + 7 = -3x
-7/4
-a real number that cannot be expressed as terminating or repeating decimals -ex: square root of any prime number; natural number e; and pie
irrational number
solve: x - 5 = 32
37
solve: 6 5 + 4 / 2 - 2 5
22
Which percentage is equivalent to 8/5? a. 1.6% b. 160% c. 0.625% d. 62.5%
b
weight of one aspirin tablet
g
average adult walks 1 of these in about 15 minutes
km
convert to fraction: 0.516
516/1000
5-pound bag of sugar weights just over 2 of these
kg
Parentheses, Exponents, Multiplication, Division, Addition, Subtraction
PEMDAS
round 19.796 to tens place
20
solve: 4 + 3 * (9 - 6)
13
George wants to use square pavers that are 6 inches on each side to completely surround his flower garden. The garden is 12 feet long and 3 feet wide. How many pavers should George buy?
64
solve: (30 - 3 * 2)/(18 - 24 / 2)
4
solve: 3 + 2 * 6 - 4
11
round 47.38 to tenths place
47.4
solve: (15 + 2 * 5)/(11 - 24 / 4)
5
Convert to percent: 1.22
122%
irrelevant
extraneous
Which of the following is an expression to compare 8.33 and 8 (2/3)? a. 8.33 > 8 (2/3) b. 8 (2/3) >= 8.33 c. 8.33 = 8 (2/3) d. 8 (2/3) <= 8.33
b
convert to decimal: 13/50
0.26
-one divided by original number -for nonzero fraction: a/b -> b/a
reciprocal
round 19.796 to hundredths place
19.80
thickness of dime
mm
convert to decimal: 138%
1.38
Zero is freezing, 10 is not. 20 is warm, and 30 is hot
C
convert to decimal: 73.7%
0.737
convert to fraction: 1.07
107/100
Your current salary is $50,000. Next year you will get a 4% increase in your salary. How much more money will you make next year?
2,000 4/100=0.04 Then 50,000x0.04=2,000
Which of the following is 25% of 680 pounds? a. 1,700 lbs b. 510 lbs c. 68 lbs d. 170 lbs
d. 25/100=0.25x680=170 pound
solve: 3x = 10
10/3
width of average pinkie fingernail
cm
incorrect
erroneous
round 19.796 to tenths place
19.8
Which fraction is equivalent to 83.1%? a. 831/1000 b. 83.1/10 c. 831/10 d. 0.831
a
Write in increasing order: -5,5 2/3, 0.523
-5, 0.523, 5 (2/3)
Given the equation: 2x - 3 = 5x + 4 which of the following is an acceptable first step toward solving the equation? a. subtract 3 from both sides of the equation b. add 4 to both sides of the equation c. subtract 2x from both sides of equation d. add 5x to both sides of equation
c
convert to percent: 0.384
38.4%
average adult height is 1.5 to 2 of these
m
covert to decimal: 19/10
1.9
Section 2
(50 cards)
parallelogram area formula
h*b
round 99.473 to hundreds place
100
-distributions with fewer observations on the left (toward lower values) -tall at the right and gets skinnier toward the left
skewed left
round 293 to tens place
290
part of the circumference of a circle
arc
covariance if both variables increase and thus are directly related
positive
triangle area formula
(1/2)bh
mathematical statement that indicates the equality of two expressions
equation
when there are two modes for a list
bimodal
Carl is thinking of retiring to either Flagstaff or Phoenix. Phoenix has an average of 4,041 hours of sunlight per year out of a possible 4,380 hours. Flagstaff has an average of 10 hours and 58 minutes per day. Carl wants to retire where there is the most sunshine. Which of the following expressions helps Carl decide where to retire? a. 4,041 hours is more than 10 hours and 59 mins, so pick Phoenix. b. 4380 hours/4041 hours equals 1.08 c. 4041 hours/4380 hours d. (4041 hours/365 days)=(11.07 hours/day). 11.07 hours equals about 11 hours and 4 mins per day. Thus, Phoenix gets more sunshine than Flagstaff, so Carol should choose Phoenix
d
Which of these statements are true? a. every scatter plot is example of covariance b. more I study for a test, the higher grade I get. This is example of positive covariance c. "practice makes perfect" is an example of direct variation, positive covariance d. "the faster I go, the more behind I get" is example of direct variation, negative covariance
b, c
a mathematical statement with two expressions that do not have the same value
inequality
Kevin charts how many miles he drives back and forth to school. By the end of the 3rd, he drove 42 miles; by the end of week 7, he drove a total 98 miles. How many miles does he drive in a week?
14 98miles-42miles/7weeks-3weeks=56miles/4week= 14miles
circumference formula
2pier, dpie
-distributions with fewer observations on the right (toward higher values) -line is tall at the left and gets skinnier toward the right
skewed right
a shape in which not all sides and angles are equal
irregular
square area formula
l*l
round 293 to hundreds place
300
the way two variables change together
covariance
a finite string of mathematical symbols (numbers, operations, variables) that are grouped to show a value
expression
arc formula
(subtend/360)*(2pier)
Write an inequality for: "How many dollars do I get for my allowance?" asked the young boy. "Well, if I gave you $12 more than three times your current allowance you'd still have less than $19," says his dad.
3D + 12 < 19
round 99.473 to tenths place
99.5
round 17/33 to ones place
1
distribution with two clear peaks
bimodal distribution
Nancy decides to track her total steps over 1 months. Her progress is recorded as this: Day 3: 1,248 steps Day 7: 2,912 Day 20: 8,320 Day 22: 9,152 Nancy draws several conclusions based on her incomplete records. Which of the following is true? a. 3 days/1,248 steps = 0.002 days/step b. unit rate is 1,248 steps/3 days c. unit rate is 416 steps/day d. rate of change is 416/1
c 1,248/3= 416 steps/day
what is k called if y=kx
constant of proportionality
The success rate for a salesperson is 1 out of 8 calls. At this rate, how many sales would the salesperson expect to get out of 32 calls? a. 8 b. 256 c. 0.128 d. 4
d. 1/8=0.125 then 0.125x32=4
Tom is saving money to go to a concert. From his part-time job, he is able to save $18.50 per week. His older bro gave him $25 to start with. If W= number of weeks, which of the following expressions represents the number of weeks until Tom has saved at least $235? A. 18.50W + 25 = 235 B. (25 + 18.50)W >= 235 C. 18.50W + 25 >= 235 D. 18.50W + 25 < 235
c
containing two variables
bivariate
A company found an average of 5 defective televisions for every 1,000 checked. If the company produced 85,000 televisions in 1 year, how many of them would be expected to be defective? a. 425 b. 5,000 c. 85 d. 0.005
a. 5/1000=0.005 then 0.005x85,000=425
distribution with a single clear peak
unimodal
a symmetric distribution with a single peak at the center
bell shaped, normal
-form an angle at a particular point on an arc -the angle formed when the two endpoints of an arc meet at the center
subtend
covariance if one variable increases and the other decreases, and thus are inversely related
negative
round 57.44445 to tenths place
57.4
circle area formula
pie*r^2
unexpected values that do not follow the trend curve
outliers
change in y/change in x
slope
distribution when observations in data set are spread equally across the range of distribution
uniform
Micah spends 17 hours in a 2 week period practicing piano. At this rate, how many hours will he practice in 5 weeks?
42.5 17hr/2weeks=8.5 Then 8.5x5weeks=42.5hrs
If the radius of a circle and the area of the circle are directly related and show positive covariance, which of the following statements is true: a. if these two variables were graphed, slope of the line between any two points would be negative b. if these two variables were graphed, the radius of the circle would be the dependent variable c. if the points were graphed, it should be connected with a straight line to show that they represent variables d. if these two variables were graphed, the slope of the line between any two points would be positive
d
During the 20th century, economists noticed a relationship between length of women's skirts and stock market. As the length of skirts became shorter, the stock market tended to go up. As the hemline fell, so did the stock market. No one means to suggest that on caused the other, but the parameters follow same general trends. Which of the following best describes this relationship? a. two parameters show positive covariance b. two variables are constants and represent fixed points in time c. length of a fashionable skirt is the dependent variable d. two parameters are inversely related
a
Mary wants to take a taxi. She has $20 for the ride, plus some change for the tip. The taxi charges $2.75 to get in the taxi, plus $1.25 per mile. If M=miles to her destination, which of the following expressions represents the maximum distance to a restaurant that Mary can afford? a. 1.25M < 20 b. 2.75 + 1.25M > 20 c. (2.75 + 1.25)M <= 20 d. 2.75 + 1.25M <= 20
d
trapezoid area formula
(1/2)h(b1+b2)
rectangle area formula
l*w
when one variable is always the product of the other and a constant
directly proportional
round 99.473 to hundredths place
99.47
distribution that can be divided at the center with each half mirroring the other
symmetric
Sue has 7 cards. Every week, she buys 3 more cards. Write an inequality that would allow her to find how many weeks until she has more than 30 cards.
3w + 7 > 30
Section 3
(21 cards)