Answer:
20 members of the rappelling club are going on the trip
Explanation:
Total cost of the trip is $540.
If only one person goes, the cost is $540.
We can make the total number of people going x since we are not given.
Therefore, each member would pay (540/x)
We can also rep 7 with non members since the number is given as 7
Total people going= Members + non members.
Therefore, the cost per person is now (540/x+7).
Problem.
540/x -540/x +7 = 7
Multiply each with lowest common denominator.
When you expand, you get
540(x+7) - x(540)/x(x+7) =7
Simplify multiplication.
540x+3780-540x=7(x^2+7x)
Combine like terms
540x-540x+3780=7x^2+49x
3780=7x^2+49x
7x^2+49x-3780= 0
When we divide through by 7, we have
x^2+7x-540
Factorize, we have
(x^2+27x)-(20x-540)=0
x(x+27)-20(x+27)=0
(x-20)(x+27)=0
x is therefore 20 or -27
Since we know -27 cannot be a reasonable answer hence must be excluded.
The exact number of the people going on the trip is 20.
Answer:
The boom and bust cycle is a key characteristic of capitalist economies and is sometimes synonymous with the business cycle. During the boom the economy grows, jobs are plentiful and the market brings high returns to investors. In the subsequent bust the economy shrinks, people lose their jobs and investors lose money.
Explanation:
One of the Egyptian inventions is geometry, since the earliest written evidence of geometry originates in Egypt. Egyptian geometric experts were called "ardenoapti" which used the rope to calculate the land area. Something later influenced and transmitted to Greece.
Although the Egyptian alphabet is not in use today, the idea of phonetic alphabet comes from Egypt. In addition to image symbols, the hieroglyphs, the Egyptians also had 24 phonetic symbols along with hieroglyphs. The Semitic nations in Egypt adopted these symbols and created a phonetic alphabet, and also their influence, these symbols also had on the Phoenicians who created a phonetic alphabet for easier trade.
The Egyptians devised and developed a system of multiplication and division, in a way that is computable, involving doubling numbers, a technique that is used even in modern computing.
The Egyptians did not discover the paper, but their invention was papyrus. This was a huge step, primarily because of easier recording and transmission of recorded data, than it was the case with engraving in stone. Of course this influenced the later invention and the appearance of paper. inspirisani ovim, evropljani su prešli na pergament a u Kini se pojavio papir.
The earliest surgical tools and procedures were in Egypt, there were even tools that looked like tools for removing tumors.
The invention and the production of glass also draw roots from Egypt and from Mesopotamia. The Egyptians have improved glass processing technology. This technology inspired Romans through trade and conquest to also deal with this craft.
