Let n be the amount of time it takes william to cut the lawn. Then Shelly takes
n-2 hours. So:
1/n+1/n-2=1/3
3(n-2)+3n=n²-2n
6n-6=n²-2n
n²-8n+6=0
Using the quadratic formula, we get a positive value of 7.1623 hrs as the amount of time william takes working alone, and 5.1623 as the amount of time Shelly takes working alone
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Answer:
$36.88
Step-by-step explanation:
4 inch cost $2.95
50 inch cost 2.95*50 / 4 = $36.875 = $36.88
To solve this answer, you are trying to find 55% of 600, because that is the number of people who chose plastic bag.
55% can be re-written as 55/100 OR 0.55 since percentages are always out of 100.
So, we do 0.55*600, which gives us 330. 330 people carry plastic bags.
Answer:
40250
Step-by-step explanation:
Every 10 years the population goes up by 13,500. So divided 13500/2=6750. Then add6750 to 33500
42.8% players practised more than one time a week
Step-by-step explanation:
Total no of players practising = 7
Players who practice more than once a week= 3
(According to graph player no 1,3 and 5 played more than once in a week)
To find the percentage of the players who practised more than one time a week
The formula used is:
percentage of players practising more than one time a week= ( no of player playing more than once / total no of players ) x 100%
Putting values in the formula
percentage of players playing more than one time a week=
%
=
%
= 42.8%
So, 42.8% players practised more than one time a week
Keywords: Calculation of percentage
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