Answer:a. (5 * 9) * (10^3 * 10^7)
45 * 10^3+7
45 * 10^10 = 4.5 * 10^11
b. 7 * 10^5/2 * 10^2
7 * 10^3/2
7 * 1000/2
7 * 500 = 3500 or 3.5 * 10^3
Step-by-step explanation:
Answer:
Step-by-step explanation:
C
Answer:
The original fraction is 
Step-by-step explanation:
Let the denominator be x
We are given that The numerator of a fraction (which is in its simplest form) is 5 less than the denominator.
Numerator = x-5
So, Fraction =
If the numerator is multiplied by 2, and the denominator is increased by 16, then the fraction becomes smaller by 1\3 of it.
A.T.Q




x=8
Denominator = 8
Numerator = x-5=8-5=3
Fraction : 
Hence the original fraction is 
Answer: 2
Step-by-step explanation:
We don't know what is the Y.
Then, 4 + 2y < 18 is:
6y < 18
If y=2, it'll make this equation true.
6*2 < 18
12 < 18.
So, Y=2