Algebra 1 2-9 Guided Practice: Percents

Last updated over 5 years ago
16 questions
10

Solve It! Some recommended daily intakes of vitamins are shown. Carrie consumed 10 mg of niacin today. Her brother consumed 11 mg of niacin. Who consumed the greater percent of thier recommended intake?

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How do you know?

Take Note: The word percent is made by combining per and centium. Per means "out of" and centium means "hundred".
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Take Note: Which of the following are equivalent to thirty percent? Select all that apply.

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Problem 1 Got It? What percent of 90 is 54?

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Problem 2 Got It?

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Problem 3 Got It? A family sells a car to a dealership for 60% less than they paid for it. They paid $9000 for the car. For what price did they sell the car?

10

Problem 4 Got It?

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Take Note: Write the Simple Interest Formula. Do not use any spaces. Capitalization matters.

1

Take Note: What does the t in the Simple Interest Formula represent?

1

Take Note: What does the P in the Simple Interest Formula represent?

1

Take Note: What does the r in the Simple Interest Formula represent?

1

Take Note: What does the I in the Simple Interest Formula represent?

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Take Note: Match each element from the Simple Interest Formula on the left with its description on the right.
Recall the Simple Interest Formula: I=Prt

Draggable itemCorresponding Item
Interest, I
Money paid or charged regularly at a particular interest rate.
Principal, P
The original sum of money in an account.
interest rate, r
The percent of a loan that is charged as interest.
time, t
The number of time intervals over which interest has accrued.
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Take Note: Match the equivalent fractions and common percentages below. You may need to zoom out to see all of the items. You can also place each item from the left column by selecting it (click it) then selecting (clicking on) the category for it.

Draggable itemCorresponding Item
100%
25%
75%
5%
\frac{1}{100}
\frac{3}{4}
10%
1
66.666...%
\frac{1}{2}
\frac{1}{5}
1%
\frac{1}{3}
\frac{1}{10}
\frac{1}{20}
20%
50%
33.333...%
\frac{1}{4}
\frac{2}{3}
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Problem 5 Got It? You deposited $125 in a savings account that earn a simple interest rate of 1.75% per year. You earn a total of $8.75 in interest. For how long was your money in the account?

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Take Note: Summarize the mathematical content of this lesson. What topics, ideas, and vocabulary were introduced?