you nee dot find the unit rate then anser the question

you nee dot find the unit rate then anser the question

A small lake is stocked with a certain species of fish. The fish population is modeled by the function P(t)=25/1+3e-0.07t, where P is the number of fish in thousands and t is measured in years...

I really need help with this!

Find the number of years needed to triple an investment that is earning a 7.5% interest as follows: a)the interest is compounded annually b) the interest is compounded continuously

Given the half-life of cesium-137 is 30 years a)find the equation in base 1/2 and a second equation in base e of the amount of cesium that remains after t years b)how many years will it take...

This is on my daughters math homework and I am having a hard time helping her with it. Please help

How much with the IRA contain when he retires at age 65? The total deposits made over time?

a group of campers and one group leader left a campsite in a canoe. they traveled at an average rate of 10 km/h. two hours later, the other group left the campsite in a motorboat. they averaged 25...

a stack of $20, $50, and $100 bills were confiscated. There were 46 more $50 bills than $100 bills. also, the number of $20 bills was 7 times the number of $100 bills. The total value was $9550. Find...

Please show how to solve the problem

Last month Kim trained 3 times as many dogs as cats. If the total number of cats and dogs she trained last month was 28, how many cats did Kim train?

The freight train is traveling 18 mph slower than the passenger train. Find the rate of each train if the passenger train overtakes the freight train in 3 h.

A ham sandwich and a drink cost a total of $3.25. If the sandwich cost four times as much as the drink, what is the cost of each?

An object is projected vertically upward with an initial velocity of v0 ft/sec, and its distance s(t) in feet above the ground after t seconds is given by the formula s(t) = −16t2 + v0t. (a)...

There are two car rental options available for a five-day trip. Option I is $50 per day, with 200 free miles and $0.40 per mile for each additional mile. Option II is $65.28 per day, with a charge...

Please help me solve this. Thanks! An aquarium of height 1.5 feet is to have a volume of 6 ft^3. Let x denote the length of the base and y the width. (Assume the aquarium has an open top.) (a)...

For this story problem, I could solve part a, but not part b. Help please? Thanks! In 1870 the average ground temperature in Paris was 11.8°C. Since then it has risen at...

A cash register contains only five dollar and ten dollar bills. It contains twice as many five's as ten's and the total amount of money in the cash register is 620 dollars. How many ten's are in the...

a new restaurant is to contain six- seat booths and five-seat round tables. fire codes limit the restaurants maximum occupancy to 136 customers .if the owners hired enough servers to handle 26 tables...

A square and an equilateral triangle have a combined perimeter of 101 inches. The side length of the triangle is 8 inches less than twice the side length of the square. What is the perimeter of the...

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