Answer:
x=3
Step-by-step explanation:
2^x=9-1
2^x=8
2^x=2^3
x=3
You must use the Lease Common Multiple technique.
We factor them first...
500 = 5 x 5 x 5 x 2 x 2
800 = 5 x 5 x 2 x 2 x 2 x 2 x 2
1,200 = 2 x 2 x 2 x 2 x 3x 5 x 5
Then we express them with exponents:
500 = 5³ x 2²
800 = 2⁵ x 5²
1,200 = 2⁴ x 5² x 3
Now we multiply the biggest exponents.
5³ x 2⁵ x 3 = 12,000
Answer: The 12,000th customer. Hoped this helped :)