Topic 3 Review 7th grade

Front

What is simple interest?

Back

Simple interest is calculated using the formula: I = P * r * t, where I is the interest, P is the principal amount, r is the rate of interest per year, and t is the time in years.

Tags

CCSS.HSF-IF.C.8B

Front

How do you calculate the principal amount when given interest, rate, and time?

Back

Rearranging the simple interest formula, the principal can be calculated as: P = I / (r * t).

Front

If a loan has a simple interest rate of 4% for 4 years and the interest paid is $240, how much was borrowed?

Back

The principal borrowed is $1500.

Tags

CCSS.7.RP.A.3

Front

What is the formula to find the total amount paid back on a loan with simple interest?

Back

Total Amount = Principal + Interest.

Tags

CCSS.7.RP.A.3

Front

How do you find the interest rate if you know the principal, interest, and time?

Back

Use the formula: r = I / (P * t).

Tags

CCSS.7.RP.A.3

Front

If Mason took out an $800 loan and paid back $120 in interest over 5 years, what was the interest rate?

Back

The interest rate is 3%.

Tags

CCSS.7.RP.A.3

Front

What does a discount of 40% mean in terms of price reduction?

Back

A discount of 40% means the price is reduced by 40% of the original price.

Tags

CCSS.6.RP.A.3C

Front

If a pair of headphones costs $36.80 and is on sale for 40% off, how much do you pay?

Back

You pay $22.08 after the discount.

Tags

CCSS.6.RP.A.3C

Front

What is a survey in the context of data collection?

Back

A survey is a method of gathering information from individuals, often used to understand opinions or behaviors.

Tags

CCSS.RI.7.7

CCSS.RI.8.7

CCSS.RL.6.7

CCSS.RL.7.7

CCSS.RL.8.7

Front

If 80% of 7th graders like country music, how many students is that if there are 80 students surveyed?

Back

80% of 80 students is 64 students.

Tags

CCSS.6.RP.A.3C