Using Rates Rate is a comparison of two











- Slides: 11
Using Rates Rate is a comparison of two amounts measured in different units we us the word "per" (means to or for) and is written using a/ 100 km per hour =100 km / hour type 45 words per 2 minutes = 45 words / 2 min.
Usain runs 10. 1 meters in 1 second, what is his rate? 10. 1 in mone / s minute, what is her rate? Dori can type 52 words Tori can swim 5 meters in 1 second, what is her rate? 52 words / min. Dan can fold 6 pairs of socks in 5 minutes, what is his rate? 5 m / min. Kate can drink 15 cups of water in 17 seconds, what is her rate? 6 socks / 5 min 15 cups / 17 s
Unit Rate a rate in which the second term is 1. The bus traveled 12 km in 3 minutes, what is the rate? 12 km / 3 minutes What is the unit rate? 4 km / min When we communicate unit rate: the 1 in the unit rate is not written.
How did I find the unit rate? At last years Carnival, the school served 160 liters of hot chocolate to 250 people. About how much did each person have? Find the unit rate for one person. Rate is 160 l / 250 ppl. Unit Rate is ______ / 1 person 160 l. 250 ppl. 0. 64 1 Each person drank 0. 64 l of hot chocolate Gary can take 245 pictures in 12 minutes with his high speed camera, how many can he take in 1 minute? Find the unit rate. To find Unit Rate: STEP 1: Identify what term you need to put to "1" STEP 2: 245 pictures / 12 min. _____/ 1 min. Divide that term by itself to get to "1" STEP 3: 245 ___ Divide the other 1 same number, that is 12 term by the your unit rate! 20. 4 / min
Basically divide one term by the other Find the unit rates of the following $ 67 for 4 Blue Ray Discs $16. 75 / Blue Ray 10 goals in 25 games, how many goals per game? 0. 4 goals / game Peter walked 28 km in 6 hours. 4. 7 km / h
Solving Problems using unit rate Henry paid $57. 00 for 6 tickets to the Breaking Dawn. How much would he have paid if he bought 11 tickets? How many tickets did he buy if he spent $47. 50.
A 3 kg box of Christmas oranges costs $10. 99. At the same rate, how much would a 4 kg box cost? How many kg's can you buy for about $28. 00 The ratio of dogs to cats registered in Grande Prairie is 7 to 8. If there are 2800 dogs in GP, how many cats are there? TIPS Ask yourself. . . at the same rate what could I. . When working with rate, try to find the unit rate first. Then go back and solve the problem.
How do we use this? VERSUS 6 cans of diced peaches at Safeway for $2. 10. 15 cans of diced peaches at Costco for $4. 80. What is the better deal?
Trick - Cross Multiply Served 90 Hot Dogs in 6 hours, how many in 8 hours He biked 98 km in 7 hours, how many did he bike in 5 hours 104 chocolate bars for every 26 people. How many for 19 people
Knowledge Check. Show me two ways to solve. . . The Air Tanker climbed 1320 ft in 6 min, how many feet did it climb in 9 minutes? Way # 1 Way # 2