+491 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.
+129852 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
+129852 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
