One species of fish in a fishery had an initial population of 255 fish and grew by 25 fish each season. A second species that wa
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<h2>Answer with explanation:</h2>
Let x denotes the number of days and y denotes the total change in gas price ( in dollars).
Given : During the past seven days the price of regular gas is decreased by $0.2 each day.
Rate of decrease =$0.2 per day
Then , Total change in gas price = Rate of decrease x Number of days
i.e.
i.e. (1)
To find the total change in gas price in 7 days , we put x= 7 in (1) , we get
Hence, the total change in gas price in 7 days = $1.4
ANSWER
30 students
EXPLANATION
The cost per student varies inversely as the number of students.
Inverse proportion is written as:
Let the cost per student be y.
Let the number of students be x.
It will cost each student $250 if 24 students attend. This means that:
If the cost is down to $200, it means that y is now $200.
That is:
Therefore, 30 students could attend.