1. 9/10 Warm-Up Turn in your scientific notation practice.
Answer on your Warm-Up sheet for #6:
Convert 1.46 billion meters to kilometers and then write the answer in scientific notation.

2. Dimensional Analysis

3. The Steps Determine the units of the known
Determine the units of the unknown
Find your conversion factors
Set up multiplication steps so the top units in one step cancel out the bottom units of the next step
Do the math
Multiply all the top numbers
Divide by all the bottom numbers

4. Practice
On DSA Island there are trees filled with bananas that resident monkeys love to eat. A perfect population on DSA Island allows two monkeys to live in one tree. No more and no less. The production of bananas allows for each monkey to get one bundle of bananas and each bundle consists of 20 bananas. Help scientists discover the perfect ratios to keep DSA Island in harmony.
Conversion Factors:

5. Problem #1
If there are 50 trees on an island, how many monkeys can live on the island?

6. Problem #2
If there are 92 monkeys on the island, how many trees must the environmentalists plant on the island?

7. Problem #3
Is there are 179 trees on the island, how many bananas are being grown?

8. Problem #4
If the island has a shortage of bananas for the year and only produces 1253 bananas, how many monkeys from problem #1 must move to a different island?

9. Real World Examples Convert 16.7 inches to feet
Convert 25 yards to inches.

10. Real World Examples Convert 84 miles to kilometers (0.6 mi = 1km)
Convert 48,987 days to seconds.

11. Warm-up Write the following in Scientific Notation:
cm = _____ x ____ cm
dkL = _____ x ____ dkL
4000 m = ______ x ____ m

12. Problem 1
The longest female beard on record belongs to Vivian Wheeler from Wood River, IL. The longest strand of her beard was measured at 10.0 inches in How many centimeters long is this?

13. Practice Problem 2
The heaviest person in medical history was Jon Brower Minnoch, who died at age 42. He was 6’1” tall and weighed 442 lbs in September What was his mass in kilograms?

14. Practice Problem 3
At the Nathan’s Famous hot dog eating competition, Takeru Kobayashi won by a landslide when he ate 53.5 hot dogs in 12 minutes. How many pounds of hot dogs did he eat?

15. Practice Problem 4
In the 2011 NFL Combine, AJ Green ran the 40-yard dash in 4.5 s. What was his speed in miles per hour?

16. Practice Problem 5
A cube has a volume of about 27.0 cm3. What is the volume of the cube in cubic inches?

17. Practice Problem 6
Bill Gates’ house in Medina, WA cost $147.5 million and is 66,000 sqft. How many square meters is this?