7th Math Fall Exam - Advance

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is always 180°.

Front

How do you find the measure of the third angle in a triangle if two angles are known?

Back

Subtract the sum of the known angles from 180°. For example, if angles are 54.6° and 17.8°, then the third angle x can be found using the equation: x = 180 - (54.6 + 17.8).

Front

What is the formula to find the net worth of a person?

Back

Net worth is calculated as: Net Worth = Total Assets - Total Liabilities.

Front

If Tricia saves $5.15 every month starting with $10.25, what is her savings after m months?

Back

Tricia's savings after m months can be expressed as: 5.15m + 10.25.

Front

What is the definition of π (Pi)?

Back

Pi (π) is the ratio of a circle's circumference to its diameter.

Front

How do you calculate the time taken to assemble multiple items at a constant rate?

Back

Use the formula: Time = (Number of items) / (Rate of assembly). For example, if 8 boxes take 21 seconds, then for 20 boxes, it would take: Time = (20/8) * 21.

Front

What is the equation to find when two linear savings plans will be equal?

Back

Set the two equations equal to each other. For example, for Tricia and Melanie: 5.15m + 10.25 = 10.25m.

Front

What is the relationship between circumference, diameter, and radius in a circle?

Back

Circumference = π × Diameter; Diameter = 2 × Radius.

Front

How do you convert a word problem into an equation?

Back

Identify the quantities involved, define variables, and express relationships using mathematical operations.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height.