Ratios and Proportional Relationships
Hannah's antivirus program scans 160 megabytes of data in 4 seconds. At what rate, in megabytes per second, does the antivirus program scan the data?
40 megabytes per second
What is the result when 8.06 is subtracted from 22.92?
14.86
Which value of x in the list below makes the equation x+35=80 true?
45,55,105,115
45
How do you find the area of a triangle?
Find the area of a triangle with a base of 7 ft and a height of 9ft.
Area=1/2BH
31.5 ft squared
How do you find the mean, range, mode, and median of a set of numbers?
What happens if you have an even number of numbers in a set of data when finding the mean?
What happens if you have two numbers in the middle when you find the median?
Mean- Add all of them up and divide by how many numbers are in the set.
Range- Take the highest number and subtract the lowest number.
Mode- The number that occurs the most.
Median- Put in order from least to greatest, then find the middle.
Add both up and divide by 2.
George spent 80% of his savings to buy a camera. The camera cost $580. How much did he have in savings before he brought the camera?
$725
What is 164.4 divided by 2.4?
68.5
What expression is equivalent to a+a+a+b+b+b?
3a+3b
The length of a rectangle is represented by the line segment with endpoints at A (0,0) and B(8,0). The width of the rectangle is one half its length. What is the area of the rectangle?
32 Square Units
Jamal scored 62, 75, 76, and 90 on four tests. What does he need to score on the fifth test in order to have a mean of exactly 80?
97
Kate pays $36 for 2 sets of candles. Each Set contains 3 red candles and 3 white candles. What is the cost per candle in these sets?
$3
14
What is the value of the expression?
14^2-(5-3)^2+(6-2)^2
208
A rectangular prism is 6 1/2 inches long, 3 inches wide, and 4 1/2 inches tall, what is the volume of the prism, in cubic inches?
87 3/4 cubic inches
What is the mean, median, mode, and range of the following numbers?
15, 20, 25, 25, 30, 35, 40
• Mean = 27.14 • Median = 25 • Mode = 25 • Range = 25
Elena found that 42 of the eggs in the box were cracked. Of all of the eggs in the box, 30% were cracked. How many eggs were in the box?
140
What is 1,476 divided by 12?
123
What are the coefficients in the expression 8y^2+12x+5y+7+1
8,12, and 5
A rectangular prism is 5 1/2 inches long, 3 inches wide, and 3 1/2 inches high. What is the volume?
57 3/4 cubic inches
Corey scored 85,89,87,92,and 98 on his math tests. What is the mean of Corey's test scores?
90.2
A can contains 16 ounces of refried beans. One ounce is approximately equal to 28.35 grams. How many grams are in the can? Round to the nearest tenth.
453.60
What is the product of 14.5 and 20.3?
294.35
"14 more than three times a number" means what?
3x+14
A box is in the shape of a rectangular prism. The length is 6.4 cm the width is 4cm, and the height of 10.5cm. What is the surface area of this prism?
269.6cm squared
Home runs hit in a local baseball league
54,48,50,36,50,44,39,and 55
What is the median of these numbers?
What is the average/mean of these numbers?
Median is 49
Average/Mean is 47.