HCP220_CheckPoint_Mathematical Functions

HCP220_CheckPoint_Mathematical Functions - solution 6...

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Checkpoint: Mathematical Functions 1. Solve the equation for x to find out how many ml of 3% solution you require. 2g NaCl / 100 ml = 2% solution 3g NaCl / 100 ml = 3% solution To decide the amount of the 3% solution required to make a 2% solution: 2g / 100ml = 3g / X 2g X = 300gml X = 300gml / 2g X = 150 ml - 3g100 m 3gx = 2gx – 3g x 100m X = 300 gmg = x = 150m 2. Change 3% to a decimal. 3% = 3/100 = 0.03 3. Change 2% to a fraction. 2% = 2/100 = 150 4. Percents are frequently used to demonstrate the power of solutions. Which solution is more powerful, the 2% or the 3%? The 3% solution is more powerful as it contains more parts per 100 than the 2% solution. 5. What does 3% of sodium chloride signify?

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The 3% solution is more powerful as it contains more parts per 100 than the 2%
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Unformatted text preview: solution. 6. Referring to the proportion regarding NaCl in the scenario, show the product of the means equals the product of the extremes. 7. Convert 12% to a fraction. 12% = 12/100 = = 12100 325 8. What percent of 15 ounces is 5 ounces? 515 x = = . 1001 50015 33 333 9. Convert 1/5 to a percent. 15 x = = % 1001 1005 20 10.Convert 33% to a decimal. 33% = = . 33100 0 33 Critical Thinking 3. = 5g100mL x500mL 5/100 = 20 so, 20/500 = 25, therefore = 5g100mL 25g500mL 20:25 = 4:5 is a true portion because the product of means is equal to the product of extremes. Stop and Review 1a. 6:25 = 15:x (x = 34) 1c. 5:8 = 3:x (x = 6) 1f. 32128= 4 x = 32/128 =4, so 4/128 =32 therefore, x = 32 1h. 0.40.12= x 8 (x = ) 1l. 20:40 = x:15 (x = 7.5)...
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HCP220_CheckPoint_Mathematical Functions - solution 6...

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