May 5 MCAP 7th Review

Front

What is the importance of doing the same operation to both sides of an equation?

Back

It maintains the equality of the equation, ensuring that both sides remain equal after the operation.

Front

How do you calculate the sale price of an item with a discount?

Back

Subtract the discount amount from the original price. For example, if an item costs $15 and has a 25% discount, the discount is $3.75, making the sale price $11.25.

Front

If a snail crawls 4/5 mile in 4.5 hours, how do you find its speed in miles per hour?

Back

Divide the distance by the time: (4/5) / (4.5) = 8/45 miles per hour.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

How do you find the area of a circle?

Back

Area = π × radius².

Front

What is the process to find the total area of a composite figure made of a rectangle and a circle?

Back

Calculate the area of the rectangle and the area of the circle, then add them together.

Front

How do you calculate percent change?

Back

Percent Change = (New Value - Old Value) / Old Value × 100%.

Front

What does a decrease of 40% mean in terms of price?

Back

It means the price has reduced to 60% of its original value.

Front

What is the significance of understanding unit rates?

Back

Unit rates help compare different quantities and understand the cost per unit, making it easier to make informed decisions.

Front

How do you convert a fraction to a decimal?

Back

Divide the numerator by the denominator.