cbrelax wrote:
If (0.00000016∗10m)(800∗10−5)=0.02∗1014, what is the value of m?
A. 15
B. 16
C. 17
D. 18
E.19
Given:
0.00000016∗10m800∗10−5=0.02∗1014Multiply both sides of the equation by
800 to get:
0.00000016∗10m10−5=16∗1014Rewrite
0.00000016 as
16∗10−8 to get:
16∗10−8∗10m10−5=16∗1014Divide both sides by
16 to get:
10−8∗10m10−5=1014Multiply both sides by
10−5 to get:
10−8∗10m=109Divide both sides by
10−8 to get:
10m=1017Since the bases are equal, we know that the exponents are equal.
So,
m=17Answer: C