A reasonable estimate of the
1 answer:
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Answer:
(a)
(b)
Step-by-step explanation:
(a) can also be written as
x
the = ± y
Therefore :
= ±
since it was given that y < 0 , then the factor will be
(b) can also be written as :
x
Therefore , one of the factor is
1 cleaning crew = 5 offices in 6 hours
You want to find out the number of offices they can clean in 12 hours
6 (hours) is
of 12 (hours)
The opposite of is 2
6 (hours) multiplied by 2 (opposite of ) is equal to
12
6 x 2 = 12, 12 = the number of offices you're trying to find.
Therefore, you need to multiple 5 by 2 (number that is double), so
5 x 2 = 10
The crew can clean 10 offices in 12 hours
You want to find out the number of offices they can clean in 12 hours
6 (hours) is
The opposite of
6 (hours) multiplied by 2 (opposite of
12
6 x 2 = 12, 12 = the number of offices you're trying to find.
Therefore, you need to multiple 5 by 2 (number that is double), so
5 x 2 = 10
The crew can clean 10 offices in 12 hours