Exam 2: Ratios, Percents, Simple Equations, and Ratio-Proportion

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A class of students consists of 9 men and 51 women. Write a proper fraction to represent the part of the total class that is women. Reduce the fraction. Change the fraction to a percent. Reduced Iraction:________ \quad \quad \quad \quad \quad Percent:________

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There are 51 women in the class of 60 students. 5160=1720;1720=85100=85%\frac { 51 } { 60 } = \frac { 17 } { 20 } ; \quad \frac { 17 } { 20 } = \frac { 85 } { 100 } = 85 \%

Convert as indicated. 78\frac { 7 } { 8 } written as a ratio.

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7 : 8

Find the value of X in the following equation. X4=324\frac { X } { 4 } = \frac { 3 } { 24 }

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X4=324\frac { X } { 4 } = \frac { 3 } { 24 } 24X = 12
X = -0.5

A student received a score of 48 points on a test that was worth 60 points. Write a fraction to represent the portion of the test the student had answered correctly. Reduce the fraction. Change the fraction to a percent. Reduced Iraction:________ \quad \quad \quad \quad \quad Percent:________

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Given: Decimal Frattion Percent Ratio 1. 0.05 2. 3. 45\% 4. 3:10 -Complete row 1 in the table above.

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In order to pass a chapter test, a student must answer 80% or more of the questions correctly. If a chapter test has 25 questions, what is the smallest number of questions that the student must answer correctly in order to pass the test?

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Convert as indicated. 34\frac { 3 } { 4 } written as a ratio.

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In order to pass a unit test, a student must answer 80% or more of the questions correctly. If a unit test has 75 questions, what is the largest number of questions that the student could answer incorrectly, but still pass the unit test?

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Convert the following decimal to a percent. 0.04

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Change the following ratio to a fraction. Reduce to the lowest term. 5 : 35

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Change the following ratio to a decimal. Round to the hundredths place. 3 : 7

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A client is to receive 1,800 mL of fluid during a 24-hour period. The client is to receive 34\frac { 3 } { 4 } of the fluid between 7 AM and 10 PM. Calculate how many mL the client will drink during that time.

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Given: Decimal Frattion Percent Ratio 1. 0.05 2. 3. 45\% 4. 3:10 -Complete row 3 in the table above.

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Change the following ratio to a percent. Round to the hundredths place. 0.7 : 2.8

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Convert the following % to a decimal. 5.25%

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Given: Decimal Frattion Percent Ratio 1. 0.05 2. 3. 45\% 4. 3:10 -Complete row 4 in the table above.

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Determine what % one number is of another number. -5 is what % of 1,500?

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Solve the following problem for X. X6=80.4\frac { X } { 6 } = \frac { 8 } { 0.4 }

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Change the following ratio to a decimal. Round to the hundredths place. 1.4 : 2.8

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Upon admission to the hospital, a child weighed 62 lb. One week later, upon discharge, the child weighed 571257 \frac { 1 } { 2 } lb. How much weight did the child lose?

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