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


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Answer:
A. by showing the relentless pace that enslaved people had to keep during the harvest.
Explanation:
Answer:
Immigration has triggered the development of different and new cultures around the world, <u>for</u> the customs and the different languages are mixed with those already established in a determined place.
Explanation:
The compound sentences comprise two simple sentences:
1. Immigration <em>has triggered</em> the development of different and new cultures around the world.
2. The customs and the different languages <em>are mixed</em> with the ones already established in a determined place.
Each sentence contains a subject and a <em>verb.</em> The two sentences are joined with a comma and a <u>coordinating conjunction</u>, in this case <u>for</u>, which is used to express reasons.