5a - 10*3 = 45
5a - 30 = 45
5a = 45 + 30
5a = 75
a = 15
1. A
2. should be 42?
3.???
4.27 apples left
5.B 1/4
Simple interest:
Simple interest is simple. Each year, the interest is calculated as a percentage of the principal, as follows: Interest= (principal) x (rate) x (time).
Compound interest:
Compound interest<span> is calculated on the principal amount and also on the accumulated </span>interest <span>of previous periods.</span>
3x + 6y = -24
first you would start by subtracting 3x from both sides which would give you
6y = -3x - 24
then you divide everything by 6 and you’re left with
y = -1/2 - 4
