Ratios & Proportions
Jeff hikes 1/2 mile every 15 minutes. How long will he hike in 2 hour?
4 miles
Name & Draw all 4 inequality signs.
Greater than >
Less Than <
Greater than or equal to >(line underneath)
Less than or equal to <(line underneath)
What are complementary angles
Angles that add together for a sum of 90 degrees
What is a sample? What is a population?
Sample - part of surveyed group, part of population
Population - entire surveyed group
positive x positive x negative equals what type of integer?
a negative integer
Raheem cuts grass at a rate of 1/6 acre in 1/4 hour. How many acres does Raheem cut per hour?
4/6 of an acre
A construction worker bought several bottles of juice for $3 at the convenience store. She paid for them with a $20 bill. If j represents the number of bottles of juice, write an expression for the change she should receive.
20 - 3j
Angles that are across from each other and share the same vertex
what are vertical angles?
What is the probability of rolling an odd number on a number cube containing numbers 1 through 6?
3/6 or 1/2
The temperature outside was 60°F at 7:00am. At Noon the temperature was 84°F. The temperature at 7:00pm was 72°F. What was the overall change in temperature from 7:00am to 7:00pm?
12 degrees
If a TV is on sale for $125 and the Original price was $250. What is the percentage off of the sale?
50%
The sum of eighteen and seven times a number t is one-hundred and nine. What is the number?
t = 13
What is the area of a trapezoid with the following dimensions:
height: 4in
base1: 7in
base2: 12in
38in2
What is the median of the set of numbers: 13, 18, 13, 14, 13, 16, 14, 21, 13
median - 14
Tamia had a balance of $125 in her savings account. After making a deposit, she has $200 in her account. What is the overall change to her account?
$75
Officer Brimberry wrote 16 tickets for traffic violations last week, but only 10 tickets this week. What is the percent decrease?
37.5%
An electrician charges $60 to come to your house. She also charges $30 for each hour that she works. The electrician charges you a total of $270. How many hours does the electrician work at your house? Use h for the number of hours.
7 hours
What is the surface area of a cube with a length of 8 inches?
384 in2
The survey only included results from boys at the school and not girls. What kind of sample is this?
Biased sample.
An hour long television drama usually has about 5 commercial breaks with all of them being the same in length. The actual show was only on television for 45 minutes. How long was each commercial break?
3 minutes
At a discount grocery store, Jessica paid $0.72 for an 8-ounce bottle of spring water. What would the cost of a 12-ounce spring water cost?
$1.08
2 1/2 years of local Internet service costs $685, including the installation fee of $85. What is the monthly fee?
$20 per month
What would the cross-section of a square pyramid cut perpendicular to the base through the vertex be?
A Triangle
What is the probability of drawing a spade or a diamond in a deck of cards WITHOUT the jokers included?
ANSWER MUST BE SIMPLIFIED FOR CREDIT
1/2
Three rock climbers started a climb with each person carrying 12.7 kilograms of climbing equipment. A fourth climber with no equipment joined the group. The group divided the total weight of climbing equipment equally among the four climbers. How much did each climber carry?
ROUND TO THE NEAREST HUNDREDTH
3.18 Kilograms