C. Johannes Gutenberg borrowed money to create the printing press.
Domestic slave trade was common because it was believed to increase productivity.
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 massacre left somewhere between 30 and 300 people dead, mostly African Americans, and destroyed Tulsa's prosperous Black neighbourhood of Greenwood, known as the “Black Wall Street.” More than 1,400 homes and businesses were burned, and nearly 10,000 people were left homeless.
Explanation:
obvious
question number two is the last one and the question number 3 is the first answer
