April 29 Mcap 7th Math

Front

What is the formula to calculate simple interest?

Back

Simple Interest = Principal × Rate × Time

Front

If the principal is $500, the interest rate is 5%, and the time is 5 years, what is the interest earned?

Back

$125

Front

How do you calculate the percentage decrease from an original value to a new value?

Back

Percentage Decrease = ((Original - New) / Original) × 100

Front

If the original value is 80 and the new value is 52, what is the percentage decrease?

Back

35% decrease

Front

What is the total amount to be paid back if you borrow $1200 at 8% simple interest for 2 years?

Back

$1392

Front

How do you calculate a tip based on a percentage of the bill?

Back

Tip = Bill Amount × Tip Percentage

Front

If the bill is $8.50 and the tip percentage is 20%, how much is the tip?

Back

$1.70

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity of one.

Front

In a proportional relationship, if you travel 120 miles in 2 hours, what is the unit rate?

Back

60 miles/1 hour

Front

What is the formula to find the total amount after interest is applied?

Back

Total Amount = Principal + Simple Interest