Unit 6 Review

Front

What is the formula for calculating the perimeter of a triangle?

Back

The perimeter of a triangle is calculated by adding the lengths of all three sides: P = a + b + c.

Front

If the perimeter of a triangle is 104 units and the combined length of two sides is 64 units, how do you find the length of the third side?

Back

Subtract the combined length of the two sides from the perimeter: Third side = Perimeter - Combined length = 104 - 64 = 40 units.

Front

What equation can be used to determine how many days it will take Alyssa to finish her book if she reads 5 pages a day after the first day?

Back

The equation is 5x + 25 = 350, where x is the number of days after the first day.

Front

Back

In this equation, 'x' represents the unknown value that, when added to 10, equals 45.

Front

Back

The situation 'There are 45 students in a group. There are also 10 adults in the group.' cannot be represented by this equation.

Front

What is the solution to the equation -12x = 54?

Back

To solve for x, divide both sides by -12: x = -rac{54}{12} = -4.5.

Front

What does the number line representation of an equation indicate?

Back

A number line representation shows the possible values of the variable that satisfy the equation.

Front

How can you express the relationship between gigabytes available on a phone and the total needed for downloads?

Back

The equation is g + 3.5 = 16, where g is the number of gigabytes available.

Front

What is the first step in solving the equation 5x + 25 = 350?

Back

Subtract 25 from both sides: 5x = 350 - 25.

Front

What is the meaning of the term 'perimeter'?

Back

Perimeter is the total distance around a two-dimensional shape, calculated by adding the lengths of all sides.