Proportions by Ms. Johnson
Marshall bought 8 potatoes for $1.60.  How many potatoes could he buy for $3.00? <ul><li> Step 1: Label the proportion wi...
What is 40% of 20? <ul><li> Step 1: Write the percent over 100.  Write the number by “is” in the numerator, and the numbe...
Unit Reflection <ul><li>I liked  the proportions word problems that related to shopping. </li></ul><ul><li>I didn’t like  ...
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Proportions powerpoint

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Proportions powerpoint

  1. 1. Proportions by Ms. Johnson
  2. 2. Marshall bought 8 potatoes for $1.60. How many potatoes could he buy for $3.00? <ul><li> Step 1: Label the proportion with the items you are comparing, and fill in the numbers. </li></ul> Step 2: Multiply the diagonals.  Step 3: Solve by isolating the x. x 8 * 3.00 = 1.60x 24 = 1.6x 15 = x /1.6 /1.6 Potatoes Dollars 8 1.60 3.00
  3. 3. What is 40% of 20? <ul><li> Step 1: Write the percent over 100. Write the number by “is” in the numerator, and the number by “of” in the denominator. </li></ul> Step 2: Multiply the diagonals.  Step 3: Solve by isolating the x. x 40 * 20 = 100x 800 = 100x 8 = x /100 /100 40 100 20
  4. 4. Unit Reflection <ul><li>I liked the proportions word problems that related to shopping. </li></ul><ul><li>I didn’t like the problems that involved decimals. </li></ul><ul><li>The hardest part was solving percent problems when I didn’t see an “is” or “of” in the problem. </li></ul><ul><li>The easiest part was solving the proportions after I wrote them. I learned how to do that in elementary school. </li></ul>

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