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11 Cards in this Set
- Front
- Back
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A school recycling drive has an arrangement with a local municipality in which they receive three plastic lunch room chairs for every four large sacks of recyclable material they collect.
How many chairs will they receive if they submit sixteen bags? |
Rearrange the formula to isolate the variable
3 × 16 = 4x 48 = 4x 12 = x The school will receive twelve chairs if it submits sixteen bags. |
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You spent 6 hours compiling a report, 1.5 of which you spent creating charts.
Question: What percentage of your time did you spend creating charts? |
solving for percentages
Portion / Total amount * 100 = percentage 1.5/6 * 100 = percentage .25 * 100 = percentage 25% = Percentage |
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Solving for percentage
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Portion over Total amount times 100 equals Percentage
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Solving for the portion
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Percentage times Total amount over 100 equals portion
Percent x Total amount /100 = PPortion |
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A door manufacturer increases the price of its products due to increases in the minimum wage and the cost of importing raw materials. The price of a $150 door increases by 20%.
Question: By how many dollars did the price of the door increase? |
(20 x 150) / 100 = Portion
3000 / 100 = Portion $30 = Portion |
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Solving for the total amount:
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Portion x 100 over percentage equals Total amount
portion x 100 / Percentage = Total amount |
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The tax on an item is $5. The tax rate is 12%.
Question: What is the full price of the item before tax? |
(5 x 100) / 12 = Amount
500 / 12 = Amount $ 41.67 = Amount |
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When you want to calculate profit margins, you need to know the net income and revenue of a company
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Net income over revenue times 100 = Profit margin
Net income / Revenue x 100 = Profit margin |
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For example, a company has a net income of $365,200 and revenue of $6,286,000.
Question: What is the company's profit margin? |
365,200 / 6,286,000 x 100 = Profit margin
0.058 x 100 = Profit margin 5.8 % |
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percentage increase formula
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Absolute increase over Original amount times 100 = Percentage increase
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percentage increase formula
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Absolute incease over original amount times 100 = percentage increase
Absoulet increase / oringinal amount x 100 = percentage increase |
