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Bell Work. What is best? 20oz popcorn for $4.50 or 32 oz popcorn for $7.00 ?. Here is the Unit Cost:. $ 4.50 / 20 = $0.225 per oz so $0.23. $7.00 / 32 = $0.21875 per oz so $0.22.
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Bell Work What is best? 20oz popcorn for $4.50 or 32 oz popcorn for $7.00 ? Here is the Unit Cost: $4.50 / 20 = $0.225 per oz so $0.23 $7.00 / 32 = $0.21875 per oz so $0.22 So the lowest Unit Price (and the best bargain) is 32oz for $7.00
Ratios and Rates Day 2
A ratio is the comparison of two numbers with the same units by division. A ratio may be written in three ways. What ratios can we form from the tiles above? 12 to 8
Create as many ratios as possible. Write each ratio three different ways.
Simplest Form • Write the ratio 50 to 300 in simplest form.
Write the ratio of filled cells to total cells? The ratio illustrated here is four filled cells to ten total cells. The ratio shown here is twofilled cells to five total cells. How are they equivalent?
Unit Rate To find the Unit Rate, you would find the cost or amount for 1. Or the rate when the denominator is 1. “How much for just 1?”
The cost of a 12-ounce box of Cheerios is $3.29. Publix brand Cheerios cost $4.89 for an 18-ounce box. Find the unit rate to find the better buy.
How can you show an infinite number of possible answers? Egg salad: 2 pound for $6 You can display all the possibilities in a proportional relationship by graphing! 1 pound for $5 1 pound for $3 2 pounds for $6 20 pounds for $100 6 pounds for $18
2 pounds for $6 Cost ($) Weight (lb.) 2 6 4 12 18 6
Cost ($) Cost ($) Weight (lb.) 2 6 4 12 18 6 Weight (lb.)
Distance (mi.) 45 miles in 3 hours 15 miles in 1 hour 30 miles in 2 hours Time (hr.)
Graph the proportional relationship “2 pounds of prime rib for $11.” Cost ($) Weight (lb.) Cost ($) 2 11 1 5.50 Weight (lb.) 4 22
Distance (ft.) State in words the proportional relationship shown here. (There are many correct answers!) 2 feet per min Time (min.)
Graph “a loss of 2 dollars per day.” Discuss why the graph is in the fourth quadrant. Day ($) Day $ 1 -2 3 -6 5 -10
You Try: Graph the proportional relationship “15 miles in 3 hours.” Miles 3 6 9 12 15 hours
You Try Cost ($) State in words the proportional relationship shown here. (There are many correct answers!) 5oz for $2 Weight (ounces)
Skills Check! When you finish turn your paper over and put it in the corner of your desk. Silent read, work on other homework or practice more problems. No talking. Practice: Worksheet