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SoccerHalo
25.06.2019 •
Mathematics
Rosa works in an office building with many floors.from her office she goes down 5 floors for a meeting .then she goes up 8 floors to have lunch.after lunch she goes down 13 floors to the first floor what floor is rosa's office on
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Ответ:
11th floor
Step-by-step explanation:
So to figure out what floor Rosa's office is in, we need to declare some variables.
x = Rosa's office
down 5 floors = -5
up 8 floors = 8
down 13 floors = - 13
One major clue to find Rosa's office is that she went down 13 floors to get to the 1st floor. So let's declare that Rosa is on the first floor.
x - 5 + 8 - 13 = 1
x - 10 = 1
x = 1 + 10
x = 11
So Rosa's office is at the 11th floor of the building.
Ответ:
(4, 0)
Step-by-step explanation:
When a point that lies one a segment, having endpoints and , divides the segment into the ratio of m : n,
Then, the coordinates of the point are,
Given,
Line segment EG is partitioned by point F in the ratio 1:3. Point E is at (0, 4), and point F is at (1, 3),
Let (x, y) be the coordinates of G,
By the above formula,
By comparing,
Hence, the coordinates of G are (4, 0),
Last option is correct.