Answer:
some empires inveneted things that we dont no about that could be useful
Explanation
when the roman empire fell medical books where burnt and thoose medicines could be still uncovered by us. so by studying them we might be able to discover inventions and discoveries that they made.
Muslim scholars began obtaining Greek treatises and started
their study and translation into Arabic a few centuries after
the Hijrah (622 A.D.) They critically analyzed, collated , corrected
and supplemented substantially the Greek science and philosophy.
After this period began what is known as the Golden Age
of Islam, which lasted for over two centuries. It is here we find
many of the great scientists of Islam who literally left behind
hundreds and thousands of books on the various branches of science.
Answer:
4:7
20 divided by 4 = 5
So 5X7= 35.
There are now 35 girls in the club.
New ratio: 20:35
Simplify it.
The simplest form of 20/35 is 4/7.
This IS NOT A TYPO. This IS NOT INCORRECT.
Since we multiplied by 5, and both 20 and 35 are divisible by 5, is will always be 4/7 if you multiply it by 5 in simplest terms.
One more boy joins.
Now the ratio is 5/7.
5/7 cannot be simplified, therefore, 5/7 simplified is 5/7.
Hope this helps!!
