Answer:
Weight of silver coin = 29.25 units , weight of gold coin = 35.75 units
Explanation:
Let the weight of 1 gold coin be 
Weight of 1 silver coin be 
Total no of gold coins = 9
Total no of silver coins = 11
Total weight of gold coins = 9
Total weight of silver coins = 11
It is given that both weigh same thus we have

After replacing coins the weights become as under

Now it is given that gold stack weighs 13 unit less thus adding 13 units to gold stack gives it's weight equal to silver stack
the above relation modifies as


Answer:
The author uses the word alien because they feel different like their from a different place, like they stand our
Explanation:
Answer:
"The best mirror is an old friend." Meaning: An old friend will give you a better picture of yourself than a looking glass. Old friends will be truthful, honest, and tell it like it is. "It takes a long time to grow an old friend.
Assuming this refers to Flowers for Algernon, no, they do not. At the end of the story, Charlie begins to see a recession in his intelligence. He reverts back to how he was at the beginning of the story. This proves that Dr. Strauss' experiments are not permanent.
Answer: Bicycles enable African girls to attend school despite their busy schedules.