It is not proportional because the different weights of books have a different rate of change. Having a constant rate of change is something you need for a relationship to be proportional.
Hope this helps!
Answer: 7/12
Step-by-step explanation:
1/3 + 1/3 = 2/3
2/3 - 1/3 = 1/3 (Rearrange the denominator together)
= 1/3 + 1/4
(Multiple 1/3 by 4 for the numerator and the denominator)
(Multiply 1/4 by 3 for the numerator and the denominator as well)
= 4 + 3 / 12
=7/12
Answer:
(10-2)/4
Step-by-step explanation:
10-2=8
8/4=2
Answer:
$46.43
Step-by-step explanation:
First, let's use the compound amount equation,
A = P(1+r/n)^(nt), where P is the principal, r is the annual interest rate as a decimal fraction, n is the # of compounding periods per year, and t is the number of years.
Here,
A = $600(1 + 0.05/4)^(4*[1 1/2]). Let's evaluate this:
A = $600*(1.0125)^6
= $646.43.
This is the amount due after 1.5 years if $600 were the original principal borrowed.
If you want ONLY the compound interest, subtract $600 from $646.43:
Compound interest was $46.43.