# Scientific notation

Approximately 7.5x105 gallons of water flow over a waterfall each second. There are 8.6x104 seconds in 1 day. Select the approximate number of gallons of water that flow over the waterfall in 1 day.

Result

x =  64500000000

#### Solution:

Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Dr Math
= 6.45 x 1010 in scientific notation

Math student
(4×104)×(2×107)

#### To solve this example are needed these knowledge from mathematics:

Do you know the volume and unit volume, and want to convert volume units?

## Next similar examples:

1. 4 pipes
The tank flows out by 4 pipes in 6 hours 120 hl water. How much water flows out of 5 pipes of the same diameter in 14 hours?
2. The shop
The shop has 3 hectoliters of water. How many liter bottles is it?
3. 15 teachers
15 teachers teach for a combined amount of 128 days over a period of 64 days. What is this expressed as a percentage?
4. Jane plants
Jane plants flowers in the garden. If she planted 12 every hour instead of 9 flowers, she would finish with the job an hour earlier. How many flowers does she plant?
5. Helmet
In nowadays cycling better results could be obtained not only due to rider physical preparation but also thanks to using updated technologies. One of the most important part of rider´s equipment is his or her helmet. While most bikers wear a helmet mainly
6. Ages 2
A man's age is 4 times his son's age. After 5 years he will be just twice his son's age, find their ages.
7. Days2minutes
Write a formula that converts x days to y minutes. The formula is:
8. Price increase 2x
If two consecutive times we increase the price of the product by 20%, how many % is higher final price than the original?
9. Hours
How many hours is 9 days?
10. Fifth of the number
The fifth of the number is by 24 less than that number. What is the number?
11. Heart as pump
Heart pumps out 5.17 liters of blood in 1 minute. How many liters of blood pumped per hour and how much per day?
12. Drunk and alcohol
One drunk measured 2.7 ‰ alcohol in the blood, another 1.75 ‰. How many grams of alcohol in the blood they had if they has 6 kg of blood?
13. Theatro
Theatrical performance was attended by 480 spectators. Women were in the audience 40 more than men and children 60 less than half of adult spectators. How many men, women and children attended a theater performance?
14. Liters od milk
The cylinder-shaped container contains 80 liters of milk. Milk level is 45 cm. How much milk will in the container, if level raise to height 72 cm?
15. Bulb
A 60 W bulb consumes 0.12 kWh of electricity. How long did she stand light without a break?
16. Ice cream in cone
In the ice cream cone with a diameter of 5.2 cm is 1.3 dl of ice cream. Calculate the depth of the cone.