To solve this problem, let us say that the action of
totally painting a small house is called “1 job”. Therefore the rates of each
person in painting the small house are:
Bill = 1 job / 3 days = 1 / 3
Sharon = 1 job / 4 days = 1 / 4
Wilber = 1 job / 5 days = 1 / 5
Therefore the total rate is calculated by simply adding
the rates of the three.
(1 / 3) + (1 / 4)
+ (1 / 5) = 1 / x
where x is the number of hours it take if all them paint
together
Calculating for by multiplying both sides by 60:
60 [(1 / 3) + (1 /
4) + (1 / 5) = 1 / x]
(60/3) + (60/4) + (60/5) = 60 / x
20 + 15 + 12 = 60 / x
47 = 60 / x
x = 60 / 47 hours
Answer:
60/47 hours
Answer:
22
Step-by-step explanation:
94-6 divided by 4
1/12 =0.0833
so i think it's less than whole
when rounding a number to the nearest thousand we have to first check the digit in the hundreds place.
if the digit in the hundreds place is equal to or greater than 5 then we increase the value of the thousands place by 1
If the digit in the hundreds place is lesser than 5 then there's no change to the digit in the thousands place
number given is 18 366
digit in the thousands place is 8
digit in the hundreds place is 3. This is lesser than 5 therefore no change is done to the digit in the thousands place. So no change is done to 8.
therefore 18 366 rounded off to the nearest thousand is
18,000
