Ratios, Unit Rates, & Proportions
What are the 3 ways we write a ratio? |
As a fraction, with a colon, and with the word "to" |
Lucy is spinning a spinner. The spinner has 4 equal sections labeled A-D. What is the probability the spinner will land on the letter "A"? |
1/4 or 0.25 or 25%
Amir took 7 tests and received his scores. What is the average of his test scores? 96, 87, 85, 100, 99, 79, 91. |
What is .03 written as a fraction and percent? |
3/100 and 3%
This is the total cost of a baseball bat priced at $110 with a 6.5% tax. |
$117.15
Write 6 girls to 8 boys as a ratio in 3 ways.
6/8, 6 to 8, 6:8
The classic wood carousel at Carousel Park in Hampton, VA has 32 jumping horses and 16 standing horses. What is the probability of randomly selecting a jumping horse? |
2/3 or 0.67 or 67%
Here is Jared's number of points scored in a series of football games here listed below. Which score occurred most often? 7, 13, 18, 24, 9, 3, 18, 4, 14 |
The mode is 18.
What is 42% written as a fraction and decimal? |
21/50 and 0.42
This is the sale price for an item regularly $65 with a 15% discount. |
$55.25
If James types 120 words per 3 minutes, what is his rate of typing?
40 words per minute
A letter tile is randomly selected from a bag, recorded, and replaced 100 times. The results are listed below. What is the experimental probability of selecting the letter "E"? A = 16 E = 11 I = 29 O = 19 U = 25 |
11/100 or 0.11 or 11%
Nirendi has 1 sister, 2 stepsisters, 1 stepbrother, and 2 brothers. The sister is 23. The two stepsisters are 15 and 17. The stepbrother is 19. The two brothers are 8 and 18. What is the range of the ages of her siblings? |
The range is 15.
What is 1/5 written as a decimal and percent? |
0.2 and 20%
This is the discount for an item costing $85.50 with a 20% off coupon. |
$17.10
Solve for x. 6/10 = 18/x |
30
How likely is it that a number cube is tossed and it lands on 8? |
Impossible
Laila's family has 5 children, aged 12, 5, 7, 16 and 13. What is the age of the middle child? |
The middle child's age is 12.
What is 52/100 written in simplest form?
13/25
Total bill for a $60 dinner with 20% tip. |
$72
Solve for x. 3/8 = 15/x
40
A six-sided die is thrown 50 times. Using the list below, how does the theoretical probability of rolling a 3 compare to the experimental probability of rolling a 3? Number on Die How Many Times it Landed on that Number
1 8
2 6
3 7
4 12
5 10
6 7
The theoretical probability is higher than the experimental probability. (Theoretical = 17%, Experimental = 14%) |
Avah owns 10 horses in Alabama. They are all different ages. Find the mean, median, mode, and range of these numbers. 8, 9, 2, 6, 24, 15, 14, 21, 9, 14
Mean: 12
Median: 16
Mode: 9 & 14
Range: 22
What is 80/100 reduced to simplest form?
4/5
This is the total amount paid for a stereo that costs $59.99 with 7% tax. |
$64.19