If 20 female Kodiak grizzly bears produce 50 cubs every 4 years, how many years will it take 30 female grizzlies to produce 100 cubs? Assume a constant rate of cubs per grizzly per year. Round up to the nearest whole number of years.

600 gallons of fuel was enough energy for the company to assemble 20 pipes in 10 days Then, 400 more gallons of fuel were added so that more pipes could be produced. How many pipes could they now produce in 11 days? Assume a constant rate of gallons per pipe per day. Round down to the nearest pipe.

Elijah Jun 13, 2022

#1**+2 **

600 gallons of fuel was enough energy for the company to assemble 20 pipes in 10 days Then, 400 more gallons of fuel were added so that more pipes could be produced. How many pipes could they now produce in 11 days? Assume a constant rate of gallons per pipe per day. Round down to the nearest pipe.

20/10 = 2 pipes per day could be produced by 600/10 = 60 gal of fuel

So....30 gal of fuel will produce one pipe every day

So when 400 gallons of fuel are added we now have 1000 gallons

So........1000/11 = the number of gallons available in one day

So [ 1000 / 11 ] / 30 = 3.03 pipes per day can now be produced in one day

So 11 * 3.03 = 33.33 pipes can be produced in 11 days = 33 pipes

CPhill Jun 13, 2022

#3**+2 **

If 20 female Kodiak grizzly bears produce 50 cubs every 4 years, how many years will it take 30 female grizzlies to produce 100 cubs? Assume a constant rate of cubs per grizzly per year. Round up to the nearest whole number of years.

50 cubs every 4 years = 50 / 4 = 12.5 cubs per year

So each female (on average) produces 12.5 / 20 = .625 cubs per year

So 30 females can produce 30 * .625 = 18.75 cubs per year

So...it will take them

100 / 18.75 ≈ 5 years to produce 100

CPhill Jun 13, 2022