ratios & proportions
What are the ways you can write a ratio?
Word form __ to ___
Ratio form with a #:#
as a fraction
What is the order of operations?
PEMDAS
What is the mean of the numbers 4, 8, and 12?
8
Five more than a number x.
x+5
How do you know a shape is a square?
All sides are equal.
If the ratio of cats to dogs is 3:4, how many dogs are there if there are 12 cats?
9
What is a numerator?
Top of a fraction
How do you calculate the area of a triangle?
What is 1/2 ×base × height
Evaluate 12−4÷2
10
How much is a right angle?
90 degrees
Are the ratios 4:6 and 8:12 equivalent?
yes
What is the place value of 7 in 0.47?
Hundredths
If your test scores are 85, 90, and 95, 75 what is your range?
20
If 3y=12 what is y?
y=4
Convert 3 feet into inches.
36 inches
If a car travels 150 miles on 5 gallons of gas, how far will it travel on 8 gallons of gas?
240 miles
What is the absolute value of -5?
5
What type of triangle has all sides of different lengths?
What is a scalene triangle?
What is a coefficient?
A coefficient is a numerical factor in a term of an expression, for example, in 3x3x, 3 is the coefficient.
2.5 is what as a fraction?
2 1/2
A school has a ratio of 5 teachers for every 20 students. If there are 100 students, how many teachers are needed?
25
Solve: 23 +5−1
If a data set has the numbers 3, 7, 7, 9, and 10, what is the mode?
7
Evaluate 2(x+4) if x =3
14
What is the least common multiple (LCM) of 6 and 8?
24