AnswersGrade 7 MathematicsProportional Reasoning with Percents — TestQuestion 3
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Proportional Reasoning with Percents — Test

Question 3 • Grade 7 Mathematics

The following information is known about a savings account. Time is equal to 6 years Interest rate is equal to 1 point 9 percent Principal is equal to 850 dollars What amount of total interest will be earned at the end of year 6 ?

Answer
A
9 dollars comma 690 point 0 0
B
16 point 1 5 dollars
C
946 point 9 0 dollars
D
96 point 9 0 dollars

Explanation

Use the simple interest formula I = P × r × t. Substituting the values gives I = $850 × 0.019 × 6 = $96.90. Therefore, the total interest earned is $96.90, choice D.

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