Measurement conversions
Melinda must take 30 cubic centimeters of her medicine every 6 hours. How many milliliters are equivalent to 30 cubic centimeters?
30
In a class of 54 students there are 6 more girls than boys. What is the ratio of the number of boys to the number of girls?
4 to 5
The preschool class has 18 students in the 3-year old class. There are 3 full-time teachers and 1 half-time teacher for this group of children. What is the ratio of students per teacher rounded to the nearest whole number?
5:1
Six hundred people bought tickets to a concert. If 46% were students, how many were NOT students?
324
Andrew sold 60 baseball cards to a friend. This was 80% of Andrew's total baseball card collection. How many total baseball cards were in Andrew's collection?
75
Susan read that her adult St. Bernard dog should weigh between 55 and 90 kilograms. About how many pounds should the dog weigh?
between 121 and 199 pounds
In a club that has 56 members, there are 32 males. What is the ratio of females to males in the club?
3/4
Celia earned $5.00. She saved $1.00 and spend the rest. What is the ratio of the amount saved to the amount spent?
1:4
What number is 30 percent of 50?
15
Devon completed 20% of his math homework. If Devon finished 8 math problems, how many total problems was he assigned?
40
75 square yards
In a class of 31 students, there are 17 females. What is the ratio of males to females in the class?
14/17
A camera store developed 2100 rolls of film in one month. Customers wanted double prints from 1500 of these rolls. What is the ratio of rolls with double prints to rolls developed?
5:7
An art teacher has 28 students in her first-period class and 24 students in her second-period class. If almost 30% of the students in these classes are boys, about how many boys are in her first two classes?
15
Kelly has to read 25% of a 212-page book every day. How many pages does she have to read each day?
53
A car is traveling at 25 miles per hour on a residential street. About how many feet does it travel per second?
36.7 feet per second
A hardware store sold 630 lawn mowers in one year. If 441 lawn mowers were purchased in the spring, what is the ratio of the number of lawn mowers purchased in the spring to the number purchased during the entire year?
7:10
What fraction shows the unit rate that is equal to the ratio 18:2?
9/1
What is 20% of 120?
24
Mrs. West taught 120 science students last year. Of these students, 25% earned an A in her class. How many students earned an A?
30
Six machines can polish 42 tables in one hour. What is the ratio of the number of machines to the number of tables polished in one hour?
1:7
An auto club drove a new hybrid car 442.4 miles. They refilled the gas tank with 10.2 gallons of gas. How many miles per gallon did the hybrid car get?
43.37
What is 12% of $19.50?
$2.34