Bell Ringer: Rank the liquids below from least to most expensive A. Crude Oil B. Bottled Water C. Penicillin D. Blood E. HP Ink F. Red Bull Take guesses…then move on

What are some of your guesses A. Crude Oil B. Bottled Water C. Penicillin D. Blood E. HP Ink F. Red Bull Take guesses…then move on…let them want the answers

Rank the 6 liquids from most to least expensive Cost A. Crude Oil $80 B. Bottled Water $17.99 C. Penicillin $18.49 D. Blood $200 E. HP Ink $63.99 F. Red Bull $51.15

Rank the 6 liquids from most to least expensive Cost For A. Crude Oil $80 1 Barrel B. Bottled Water $17.99 480 oz C. Penicillin $18.49 250 ml D. Blood $200 500 ml E. HP Ink $63.99 84 ml F. Red Bull $51.15 24 pack of 8.4 oz cans

Rank the 6 liquids from most to least expensive Cost For A. Crude Oil $80 158,987 ml B. Bottled Water $17.99 14195 ml C. Penicillin $18.49 250 ml D. Blood $200 500 ml E. HP Ink $63.99 84 ml F. Red Bull $51.15 5962 ml

Rank the 6 liquids from most to least expensive Cost For $/ML A. Crude Oil $80 158,987 ml 0.0005 B. Bottled Water $17.99 14195 ml 0.001 C. Penicillin $18.49 250 ml 0.07 D. Blood $200 500 ml 0.40 E. HP Ink $63.99 84 ml 0.76 F. Red Bull $51.15 5962 ml 0.0086

Let’s Look at Graph

Today Objective: I CAN solve problems involving rates Agenda: BR Notes Independent work

So I was grocery shopping the other day and …

What do you want to know?

So, which one is the better deal?

What do you need to know?

Take 5 minutes and try to find the answer?

If you finish How large would the individual bottle have to be for it to be the better deal?

Let’s go over it – Individual bottle 32 ounces 189 cents cost per ounce

Let’s go over it – Package of bottles 160 ounces 699 cents cost per ounce

cost per ounce cost per ounce

Notes Rate: the change in one number relative to another number Examples: miles per hour, miles per gallon, points per game, rebounds per game, etc When reading “per” think of every. Ex: 70 mph, 70 miles every hour

How to determine a rate To determine miles per hour Rebounds per game

Guided Practice An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there.

Make a table to help An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there. Part of trip Rate (km/h) Hours KMs Going there

Make a table to help An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there. Part of trip Rate (km/h) Hours KMs Going there 3

Make a table to help An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there. Part of trip Rate (km/h) Hours KMs Going there 3

Make a table to help An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there. Part of trip Rate (km/h) Hours KMs Going there 3 Going back 4

Make a table to help An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there. Part of trip Rate (km/h) Hours KMs Going there 3 Going back 4

Make a table to help An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there. Part of trip Rate (km/h) Hours KMs Going there 3 Going back 6 4

Make a table to help An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there. Part of trip Rate (km/h) Hours KMs Going there 3 Going back 6 4 24

Make a table to help An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there. Part of trip Rate (km/h) Hours KMs Going there 3 24 Going back 6 4

Make a table to help An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there. Part of trip Rate Hours KMs Going there 8 3 24 Going back 6 4

Independent Work Complete the problems the back of the worksheet

Homework The standard toilet uses 3.5 gallons of water per flush. New High efficiency toilets use 1.6 gallons of water per flush. Estimate how much water would be saved if the entire world used high efficiency toilets? Hint – there are 6,697,254,041 people in the world