7th grade Formula Chart and vocab.

What is the formula for constant of proportionality?

• y=mx+b

• k=y/x

• d=rt

• k=bh

How do you find the area of a triangle?

• A=bh

• A=bh/2

• A=πr²

• V=Bh

In word problems, what operation do the key words per, each, and every represent?

• addition

• subtraction

• multiplication

• division

What formula would you use to find circumference?

• a) C = 2πr

• b) A = πr²

• c) C = πd

• d) Both a and c

How many meters are in 1 kilometer

• 1,900

• 1,800

• 1,000

• 2,000

How many feet are in 1 yard?

• 12 feet

• 10 feet

• 3 feet

• 3 inches

What number can be used to represent π (pi)?

• A) 3.14

• B) 9

• C) 4

• D) Both a and b

What formula can be used to find distance?

• d = r*t

• d = r/t

• d = C/π

How do I change rate from a percent to a decimal?

• Drop the percent sign and add a decimal at the end.

• Move the decimal point two places to the left.

• Move the decimal point two places to the right.

• Move the decimal point one place to the right.

What is the formula for finding the volume of a prism?

• V=¹/₃Bh

• V-Bh