Answer:
Second option: 5E 10 = 5*10^(10) galaxies.
Step-by-step explanation:
The exponential notation is used as:
AE N
This is equal to:
A*10^(N)
And we need to add N zeros to the right of A.
While if we had:
AE - N
A*10^(-N)
We need to add N - 1 zeros at the left of A.
Now we have the number:
50,000,000,000
Let's count the number of zeros at the right of the 5, we have 10 zeros.
Then we would write this as:
5*10^(10)
OR
5E 10
Then the correct option is the second one.
Answer:
8.75 or 8 3/4
Step-by-step explanation:7
The numbers in 7 divided by 4/5 are labeled below:
7 = whole number
4 = numerator
5 = denominator
To make it a fraction form answer, you multiply the whole number by the denominator and make the result the new numerator. The old numerator becomes the new denominator:
7 x 5
4
=
35
4
Thus, the answer to 7 divided by 4/5 in fraction form is:
35
4
To make the answer to 7 divided by 4/5 in decimal form, you simply divide the numerator by the denominator from the fraction answer above:
35 / 4 = 8.75
The answer is rounded to the nearest two decimal points if necessary.
35/4 is an improper fraction and should be written as 8 3/4.
3x + 2 = 5x - 4
3x = 3 times the value of x
2 = The sum of 2
5x = 5 times the value of x
-4 = 4 less
Distributive property
5 + 6x - 8 - x
Combine like terms
5 - 8 = -3
6x - x = 5x
Answer: -3 + 5x
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