Simple Interest, Percent Change, Percent Error
7th Grade
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Simple Interest, Percent Change, Percent Error
Quiz
•
Mathematics
•
7th Grade
•
Hard
Standards-aligned
Anthony Clark
FREE Resource
15 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Suppose you deposit $700 in a bank with a simple interest rate of 3.4%. You want to keep your deposit in the bank long enough to earn at least $150 in interest. How long should you keep your deposit in the bank? ROUND UP TO THE NEXT FULL YEAR. ONLY TYPE THE NUMBER.
Tags
CCSS.6.EE.B.7
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Find the balance of an account after 5 years that you deposited $4,400 with an interest rate of 8%. DO NOT TYPE A DOLLAR SIGN OR ANY COMMAS OR SPACES.
Tags
CCSS.7.RP.A.3
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
You deposit $600 into a savings account that earns simple interest. After 5 years your balance is $720. Find the interest rate.
HINT: FIND THE AMOUNT OF INTEREST YOU HAVE FIRST
ONLY TYPE THE NUMBER, NOT THE PERCENT SIGN
Tags
CCSS.7.RP.A.3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
To find simple interest, you multiply the principal (in dollars), the interest rate (as a decimal), and the time in years. The equation 6.40=200•0.016•2 shows how to find the simple interest for a certain account after 2 years. What is the interest rate (as a percent)?
6.40%
200%
0.016%
1.6%
2%
Tags
CCSS.7.RP.A.3
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
An account has a principal of $100 and a simple interest rate of 3.8%. The table shows the simple interest earned and the new account balance for 1, 2, and 3 years. Complete the table for the fourth year. YOU WILL CHOOSE 2 ANSWERS.
$3.80
$15.20
$115.20
$126.60
Tags
CCSS.7.RP.A.3
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Find the principal if you earn $5.25 in interest after 21 months and the simple interest rate was 2.0%.
DO NOT TYPE A DOLLAR SIGN.
Tags
CCSS.7.RP.A.3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You estimate that 200 people attend a school concert. The actual attendance was 240. What is the percent error?
20%
18%
16%
17%
Tags
CCSS.6.RP.A.3C
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