Ratios, Rates, & Percents
There are 12 boys and 18 girls in Ms. Garza's class. What is the ratio of boys to girls in Ms. Garza's class as a simplified fraction?
2/3
Megan has a bag of lollipops, 4 are red, 6 are green, and 5 are purple. If she chooses one lollipop randomly, what is the probability that it will be red as a simplified fraction?
4/15
Solve for x:
12+3x = -24
x = -12
Taylor paid $149 for 4 concert tickets. Each ticket cost the same amount. What was the cost of each concert ticket?
$37.25
Mohammed has a bag of chocolates from Halloween. If the bag has 27 milk chocolates, 32 dark chocolates, and 15 white chocolates, what are the odds that he will grab a dark chocolate?
16/37
Solve for x:
4k + 18 = 66
x=12
There are 1,200 students at Springfield Middle School, and 42% of students are in the fine arts program. How many students are in the fine arts program?
504 students
A 6-sided die with the numbers 1, 2, 3, 4, 5, and 6 is rolled 42 times. What is a reasonable prediction for the number of times the die would land with a 6 faceup?
7 times
Solve for x:
-5x - 8 = 22.5
x = -6.1
The price of a Nike shirt is $45. A Gap shirt is 85% of the cost of a Nike shirt. What is the cost of a Gap shirt?
$38.25
A survey of 15 students revealed that 9 students brought their lunch from home, and 6 students bought their lunch in the cafeteria. Based on this information, if there are 500 students in the school, how many students could be expected to bring their lunch?
300
Write an equation for the following situation:
Paulina is reading a book with 677 pages total. If she has already read 345 and plans to read 23 pages a day, how many days, x, will she need to read at that pace until she finishes the entire book?
23x + 345 = 677
Niko has a collection of 60 stamps. Of these stamps, 30% are from New York, 25% are from California, and the rest are from countries outside of the United States. How many stamps in Niko's collection are from countries that are outside of the United States?
27 stamps
A study of a population of 4,000 golden retrievers found that 8 out of every 160 have hip dysplasia. Based on the results of this study, how many golden retrievers of this population do NOT have hip dysplasia?
200
A family of 4 went to an amusement park. They bought their tickets online. At the park, they spent $109.99 throughout the day for food and souvenirs. The total cost of the trip, including the tickets, was $347.95. Write an equation where t=the cost of 1 ticket.
4t + 109.99 = 347.95