Joe has 12 blue marbles and 8 red marbles. Write the ratio of blue to red marbles in simplest form.
CHALLENGE (worth 100 extra points): What is the ratio (in simplest form) of blue marbles to the total?
Ratio is 12:8, which in simplest form is 3:2 (it can also be written "3/2" or "3 to 2."
CHALLENGE answer: 3:5
100
Josh scored 4/5 on his quiz. What percent did he earn?
80%
100
The prices for some dinners at Carter's Pizzeria are shown in the table. What is the range of prices in dollars for the meals?
Turkey: $9
Cheeseburger: $7
Chicken Salad: $6
Spaghetti: $8
$3
200
The average weight of a bass in a neighborhood lake is 5.1 pounds. Norma and her friend caught 4 bass. What was the total weight in pounds of the fish they caught?
20.4
200
5x - 4 = 21 (hint: add and subtract first, multiply and divide last)
x = 5
200
Joe has 12 pencils for every 3 erasers, and Kyle has 54 pencils for every 9 erasers. Are these ratios equal?
No, 12/3 becomes 4/1 and 54/9 becomes 6/1 (make them both unit rates).
200
1/8 of the students are excited about eating breakfast. If there are 192 students, how many are excited to eat breakfast?
24
200
Find the median of the following ages of people attending a concert: 2, 7, 41, 25, 19, 22, 28, 32, and 24.
24
300
Find 2 divided by by 3/4
Find 2 divided by by 3/4? Answer: 2 2/3 (put 2 over 1, then flip the second number and multiply)
300
Gena is ordering DVDs online. She has saved $61. The equation 14x + 5 = 61 can be used to find the number of DVDs she can order with her savings. How many DVDs can she order?
4
300
If there are 78 erasers in 3 packages, how many are in one package? (hint: this is a unit rate problem!)
25 erasers in 1 package
300
Order from least to greatest: 0.4, 5/8, 38%
38%, 0.4, 5/8
300
Find the area of a triangle with a base of 8 inches and a height of 11 inches.
FORMULA: 1/2bh
44 square inches
400
Half of Mr. Carson's students play a sport. OF these students, 2/3 are male. What fraction of the class is male and plays a sport? (HINT: 2/3 OF 1/2)
1/3
400
In a certain function table, x = 3 and y = 6. In the same table, x = 12 and y = 24. What would be the function rule for these two?
2x
400
At a sports camp there is one counselor for every 12 campers. If there are 156 campers attending the camp, how many counselors will there be?
13
400
Find 32% of 60.
19.2 or 19 1/5
400
Find the volume of a prism with a base of 3 feet, a width of 4 feet, and a height of 7 feet.
FORMULA: A = BWH
84 cubed feet
500
What is 2 4/5 divided by 5 3/5?
1/2
500
3x + 12 > 36 (HINT: solve just like an equation)
x > 8
500
Leo buys 5 DVDs for $60. At this RATE, how much would be pay for 3 DVDs?
$36
500
If a pair of glasses cost $42 and are on sale for 30% off, how could you find out how much money you would receive off?
Find 30% of 42, so 0.3 x 42 OR 3/10 x 42/1
500
If a parallelogram has an area of 100 square meters and a base of 10 meters, what is the height?
FORMULA: A = BH