7x+(x+20)=180
Just simplify. Hope this helped:)
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.
45w = 500 + 85
45w = 585
w = 585/45
w = 13 <=== 13 weeks
Answer:
the answer is 5
Step-by-step explanation:
