23.456 = (2 x 10) + (3 x 1) + (4/10) + (5/100) + (6/1000)
20% = 1⁄5
X = " a number " X + 20
d
2.45 = 49/20 in its lowest terms
20 in scientific notation is 2 x 10^1
20/1000000 0.000020
It is: 2.0*107 if you prefer scientific notation or 20 mil, If you're not familiar with scientific notation.
Write 10 Gaga grams in scientific notation and convert the answer into imperial unites
It is simply: 2.0*10^1
2.0 × 107
6.3819 × 10-20
If you mean: 20/1,000,000,000 then it is 2.0*10^-8
The first step to writing a number in scientific notation is to divide that number by a power of 20 such that the greatest place value is the units. In this case, this can be done by dividing by 100: 321/100=3.21 This is the start of our answer. The second part is to express the number we divided by as its power of 10. 100 is the second power of ten, or 102, so we need to write this alongside the number as a multiplication. Thus, 321 in scientific notation is 3.21x102
3.34 x 10^20
In scientific notation, the value turns out to be (2.0 x 10)°C. From the starting point of 20, which is same as 20.0, move a decimal place to the left!
Take for example the numbers 2, 20, and 200. 2 would be 2 x 100 in scientific notation. 20 would be 2 x 101. 200 would be 2 x 102.