Statistics & Money Problems
Expressions & Equations
Shapes
Proportional Relationships
Probability & Percents
100
When solving equations, in order to eliminate a term, you must use ___________ operations.
inverse/opposite
100
What is the constant of proportionality in the equation y=3.6x
3.6
100
The probability of an event is 1/10.
Describe the likelihood of the event.
unlikely
200
Find the mean of the data set.
{ 3 , 4.2 , 9.8 , -9 }
mean = 2
Work : 3 + 4.2 + 9.8 + -9 = 8
8 ÷ 2 = 4
200
When solving inequalities, when does the inequality symbol flip?
When you multiply or divide by a negative
200
Find the perimeter of a rectangle that has a side length of 15inches and a width of 11inches.
Perimeter : 52inches
Work : 15 + 15 + 11 + 11
200
There are 3 gold coins and 12 silver coins in a bag. What is the probability of choosing a silver marble?
12/15
300
Find the selling price of a $60 item after a 40% markup.
$84
Work : 0.40 x 60 = $24
$60 + $24 = $84
300
Simplify.
8(2x + 7)
16x + 56
300
Can you create a triangle with side lengths 10, 15 , 5?
EXPLAN!!!
No,
10 + 5 is NOT greater than 15
300
What form must an equation be in to be proportional?
y = kx
300
Becky is painting her nails and has 7 base colors to choose from. She has gold and silver for design colors to choose from.
Find the total number of outcomes when you choose one base color and one design color.
14 outcomes
Fundamental counting principle : 7 x 2 = 14
400
Leo deposits $400 in a savings account. The account earns 2% interest every year. What is the interest earned AND the balance after 4 years?
You must give both answers.
Interest earned = $32
400 x 0.02 x 4
Balance = $432
$400 + $32
400
Simplify
1.5y - 9 + 0.4y + 3
1.9y - 6
400
Find the area of a circle with a radius of 9inches.
254.34 inches2
Work : 3.14 x 92
400
Mark jogs 1/3 miles in 1/15 hour.
What is Mark's speed in miles per hour?
5 miles per hour
400
Finn rolls a 6-sided die and flip a coin.
What is the probability of Finn rolling a number less than 2 and flipping tails?
1/12
Work : 1/6 x 1/2
500
You ask 10 people to name their favorite color. Of the people you asked, 5 said blue, 2 said pink and 3 said green.
There are 100 people in the entire town. Estimate the number of people in the town whose favor color is blue.
50
5/10=x/100
500
Factor 3 out of 21x + 12
3(7x + 4)
500
Find the circumference of a circle with a diameter of 12feet.
37.68feet
Work : 2 x 3.14 x 6
500
What is the equation for the table.
y = 0.25x
500
Ryan estimates that there are 43 M&Ms in a candy jar. The actual amount if 82. Find the percent error.
Round to the nearest tenth of a percent.
47.6% error
Work : 82 - 43 = 39
39 ÷ 82 = 47.6% error