8th-Unit 3 PreTest

Front

What is the ratio of red paint to blue paint needed to mix a specific shade of purple paint?

Back

The ratio of red paint to blue paint is 5:3.

Front

If you want to make 20 gallons of purple paint using the ratio of red to blue paint (5:3), how many gallons of each color do you need?

Back

You need 12.5 gallons of red paint and 7.5 gallons of blue paint.

Front

What is the formula to calculate the total cost of an ice cream with toppings?

Back

Total cost = Base price of ice cream + (Cost per ounce of toppings * Number of ounces of toppings).

Front

If an ice cream costs $3.00 and toppings cost 50 cents per ounce, how much would an ice cream with 4 ounces of toppings cost?

Back

The total cost would be $5.00.

Front

How do you determine the weight difference in toppings between two ice creams if one costs $3.50 more than the other?

Back

Calculate the difference in cost and divide by the cost per ounce of toppings.

Front

If Elena's ice cream costs $3.50 more than Jada's and the cost per ounce of toppings is $0.50, how much more did Elena's toppings weigh?

Back

Elena's toppings weighed 7 ounces more than Jada's.

Front

What is a rotation in geometry?

Back

A rotation is a transformation that turns a figure around a fixed point, known as the center of rotation.

Front

What is the significance of the origin in a rotation?

Back

The origin is often used as the center of rotation in geometric transformations.

Front

What is the equation of a vertical line in the coordinate plane?

Back

The equation of a vertical line is x = a, where 'a' is the x-coordinate of all points on the line.

Front

How can you identify a line that describes all points in the plane with a specific x-coordinate?

Back

A line that describes all points with a specific x-coordinate is a vertical line.