Answer:
Step-by-step explanation:
D is the answer
Marcia dissolved 1 kg of salt in 3 litres of water.
Bobby dissolves 2 pounds of salt in 7 pints of water
2.11 pints = 1 litre
7 pints = 7/2.11
= 3.32 litre
1 pound =0.45 kg
2 pound = o.45*2 kg
= 0.9 kg
So we find that Bobby is dissolving 0.9kg of salt in 3.32 litre of water
Marcia is dissolving 1 kg of salt in 3 litres of water.
Remembe you can do anything to an equation as long as you do it to both sides
multiply both sides by 3/2 or divide both sides by 2/3 (same thing)
we get x=36/2 or x=18
That would be
12,000(1.05)^2 = 13,230
