
DCP #2 Review 8th Grade
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a proportional relationship?
Back
A proportional relationship is a relationship between two quantities where their ratio is constant. For example, if y is proportional to x, then y = kx for some constant k.
2.
FLASHCARD QUESTION
Front
How do you calculate simple interest?
Back
Simple interest can be calculated using the formula: Interest = Principal × Rate × Time. For example, if you invest $1000 at a 5% interest rate for 2 years, the interest earned would be $1000 × 0.05 × 2 = $100.
3.
FLASHCARD QUESTION
Front
What is scientific notation?
Back
Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form. It is written as a product of a number between 1 and 10 and a power of 10. For example, 12,000,000 can be written as 1.2 x 10^7.
4.
FLASHCARD QUESTION
Front
What is compound interest?
Back
Compound interest is the interest on a loan or deposit calculated based on both the initial principal and the accumulated interest from previous periods. It can be calculated using the formula: A = P(1 + r/n)^(nt), where A is the amount of money accumulated after n years, including interest, P is the principal amount, r is the annual interest rate, n is the number of times that interest is compounded per year, and t is the time in years.
5.
FLASHCARD QUESTION
Front
What is the formula for calculating simple interest?
Back
The formula for calculating simple interest is: Interest = Principal × Rate × Time.
6.
FLASHCARD QUESTION
Front
Convert 12,000,000 to scientific notation.
Back
12,000,000 in scientific notation is 1.2 x 10^7.
7.
FLASHCARD QUESTION
Front
If the principal is $1500, the interest rate is 7%, and the time is 2 years, what is the simple interest?
Back
The simple interest is $210.
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