Percent of a number.

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Presentation transcript:

Percent of a number

Warm-up Warm-up On Tablet

Learning Targets I can solve percent of a number problems. I can set up and use cross product to solve percent of a number problems. I can interpret percent of a number word problems.

Percent of a number notes Percent proportion: compares part of a quantity to the whole quantity, called the base, using a percent. Is = % of 100

Guided Practice Find each number. Round to the nearest tenth if necessary. 1. 75 is 20% of what number? 2. 18 is 25% of what number? 3. 80 is 75% of what number? 4. 50 is 20% of what number?

Examples on your own: Find each number. Round to the nearest tenth if necessary. 1. 73 is 20% of what number? A.356 B. 365 C. 375 D. 366 2. 54 is 25% of what number? A. 261 B. 216 C. 206 D. 2016 3. 16% of what number is 2? A. 12.4 B. 12.3 C. 12.6 D. 12.5 4. 12% of what number is 50? A. 416.7 B. 416.5 C. 416.6 D. 416.8

Word Problems 1. A girls’ softball team has 3 pitchers. The pitchers make up 20% of the team. How many total players are on the softball team? 2. Li rode her bike 25% of the way to school. She rode 5 blocks. How many blocks does Li live from school?

Word Problems Bob brought 40% of the collected canned goods to the food pantry. If Bob brought 160 cans to the pantry, how many can were collected?

Exit Ticket 180 is 30% of _______. 25% of ________ is 40.