Ratios & Proportions
Write the ratio of 5 cats to 10 dogs.
5 to 10, 5:10, or 5/10
1 to 2, 5:10, or 1/2
What is the result of -4 - 9?
-13
What is the value of 2x + 3 when x = 4?
11
What is the perimeter of a triangle with sides measuring 3 cm, 4 cm, and 5 cm?
12 cm
What is the median in the set: 1, 2, 3, 4, 5, 6?
3.5
If 3 pounds of apples cost $6, how much would 5 pounds cost?
$10
Calculate: 10 + (-7) + 3
6
Simplify: 7a - 2a + 5
5a + 5
Calculate the area of a square with side lengths of 3 cm.
9 cm2
What is the range of the following numbers: 4, 8, 15, 16, 23, 42?
38
If 4/x = 2/3, what is the value of x?
x = 6
What is the product of -5 and -2?
10
Solve for y: 4y - 8 = 12
y = 5
Find the height of a triangle with an area of 30 cm² and a base of 10 cm.
6 cm
In a class of 30 students, 12 have brown eyes. What fraction of the class has brown eyes?
12/30 or 2/5
A car travels 150 miles on 3 gallons of gas. How many miles can it travel on 5 gallons?
250 miles
Solve: -8 + 3 × 4
4
If 5(x - 2) = 20, what is x?
x = 6
A net is made up on one hexagon and six congruent triangles. What polyhedron does this create?
a hexagonal pyramid
If you roll a standard six-sided die, what is the probability of rolling a number greater than 4?
1/3
If a map's scale is 1 inch = 20 miles, how far would 3 inches represent?
60 miles
Find the value of 2 - 3(-4) + 5
19
What is the value of 3(x + 1) - 2x if x = 2?
7
A rectangular garden measures 10 m by 15 m. If a path 1 meter wide surrounds it, what is the area of the path?
54 m2
A spinner has 5 equal sections colored red, blue, green, yellow, and orange. What is the probability of landing on blue or green?
2/5