There are approximately 7.5x10^18 grains of sand on earth.There are approximately 7x10 ^27 atoms in an average human body.Are there more grains of sand on earth or atoms in an average human body ?How do you know?
Answers
Answer:
Step-by-step explanation:
There are approximately 7.5 × 10¹⁸ grains of sand on earth.
There are approximately 7 × 10²⁷ atoms in an average human body.
A. There are more atoms in an average human body. When comparing the order of magnitude of each number 27 it greater than 18.
7 × 10²⁷ > 7.5 × 10¹⁸
B. Now we will calculate how many times more atoms are in a human body compared to grains of sand on earth.
=
≈ 1 × 10²⁷⁻¹⁸
≈ 1 × 10⁹
≈ 10⁹
There are approximately 1,000,000,000 atoms more in a human body compared to the grains of sand on earth.
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Is 75/100 a decimal of 0.75
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Answer:
If you round it would be 4-3=? . If the decimal is above .50 then you would go up one number in the ones place if it is not then it stays the same.
Step-by-step explanation:
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The g(x) function has been scaled by a factor of 2. In other words, each point on g(x) is twice as high as its corresponding point on f(x). Specifically for example, the point (1,1) has been doubled to (1,2). Overall, this vertically stretches out the parent function graph.
Both the parent function f(x) and the other g(x) curve are square root functions.
See the attached image. The blue curve goes through the given points from the table. The red curve is the parent function.
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Answer: x = 15
Step-by-step explanation: since ABCD is a parrallelogram, 9x-28 = 7x+2
if we solve that, we get x=15
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when the distances traveled are the same, they are at the same place (caught up)
the time that the cyclist travels in that distance is t
the times that the hiker travels in that distance is t+1 (1 hour head start)
if hiker rate=3mph
and cyclist=3+6=9mph, then find the distance
hikerdistance=hikderdistance
3(t+1)=9t
3t+3=9t
minus 3t
3=6t
divide both sides by 6
1/2=t
the answer is 1/2 hour after the cyclist left, or 1 and 1/2 hour after the hiker left
0.5 hours it will take the cyclist to catch up with the hiker and this can be determined by equating the distance.
Given :
- One hour after a hiker left a camp, a cyclist set out to catch up.
- The hiker traveled 3 miles per hour and the cyclist traveled 6 miles per hour faster.
Let the total distance be 'd'. Let the time taken by the hiker to travel distance 'd' be 't' then the time taken by the cyclist is (t+1).
The speed of the hiker is 3 miles per hour and the speed of the cyclist is (6 + 3 = 9) 9 miles per hour.
The distance travel by both hiker and cyclist is 'd'.
Hiker Distance = Cyclist Distance
3(t + 1) = 9t
3t + 3 = 9t
3 = 6t
t = 0.5 hour
0.5 hours it will take the cyclist to catch up with the hiker.
For more information, refer to the link given below:
One-fourth (8 minus 4 p) + 2 p = 12
Answers
1/4(8-4p) + 2p = 12
Use distributive property by multiplying 1/4 by each term inside parentheses:
2 - p + 2p =12
Combine like terms:
2 + p = 12
Subtract 2 from both sides:
P = 10
P is equal to 10
How to get your answer:
So 1/4(8-4p) + 2p = 12
First you need to distributive by multiplying 1/4 to each term like this:
2 - p + 2p =12
Then you have to combine to terms just as I did below:
2 + p = 12
Then you need to subtract 2 from both sides to get 10 so:
P = 10