Answer:
x=12
Step-by-step explanation:
put the x at one side and the numbers ar the other
5/2x-3/4x=14+7
10/4x-3/4x=21
7/4x=21
7x=84
x=12
The decimal is 0.543 and the fraction is 543/1000
12 simply because it’s right at the middle between 6 and 18 which are the the first and third multiples of the number six
The correct answer should be: Eight years. To get ½ of the 300, you need 0.5^(t/8) to equal ½, or 0.5. That means that the exponent must be 1. This happens when t = 8 years.