The number of rows kept empty will be 4 in the meeting room.
The difference between every two successive terms in a sequence is the same this is known as an arithmetic progression (AP).
The arithmetic progression has wider use in mathematics for example sum of natural numbers.
As per the given,
Number of seats in one row = 9
Total number of seats = 126
Maximum number of possible rows =126/9 = 14 rows
Total number of people seated = 90
Number of rows filled = 90/9 = 10 rows
Empty rows = 14 - 10 = 4 rows.
Hence "In the meeting room, four rows will be left unoccupied".
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Answer:
1.211 g/ml
Step-by-step explanation:
Given is a liquid , 63 g in weight and filling up a volume of 52 ml
As we know,
Density =
Mass = 63g
Volume = 52ml
Density =
= 1.211 g/ml
Thus, density of the liquid having mass 63 g and filling 52 ml is
1.211 g/ml.
what is -10-9b+7b+5 simplified
-10+5 -9b+7b
-5 -2b
Answer: -5-2b