Answer:
What percentage of gold is in the new alloy after the recasting? 4
Step-by-step explanation:
(80/5)*(1/5)/80=0.04
Answer:
5%
Step-by-step explanation:
You sum the lost excess weight: 50% + 20% + 25% = 95%. Meaning that she lost 95% of the excess weight. It remained just 5% to lose.
Answer:
the difference is 2 minutes
Step-by-step explanation:
is that -4 1/2???? cause then it would be -2