I need to find the estimated lengh of copper pipe with a radius of 2.5 cm and a mass of 1760g. I know the density of copper is 8.96 g/cm3. I'm stuck there.

I need to find the estimated lengh of copper pipe with a radius of 2.5 cm and a mass of 1760g. I know the density of copper is 8.96 g/cm3. I'm stuck there.

ALgebra question. Solved by simplifying then solving equation.

Complete factor form

Setup and explanation, don't solve

The school that Stefan goes to is selling tickets to a choral performance. On the first day of ticket sales the school sold 3 senior citizen tickets and 1 child ticket for a total of $38. The school...

please help.

when three pipes fill a pool, they can finish in 12 hours. Two of the pipes can finish in 18 hours if they are working together. How long would it take a third pipe to fill the pool on its own?

A creamery operator wants to mix milk(which contains 4% fat) and cream(which contains 40% fat) to make 90 liters of a mixture that will contain 20% fat.

I don't understand the wording of the question, and how I'm suppose to make the equation

pls help me solve this question!!

How does the distance Plane A traveled in 1 hour compare to the distance Plane B traveled in 1 hour?

Two planes left the airport traveling in the same direction. The distance Plane A traveled is modeled by the function d(t)=290t where d represents distance in miles and t represents time in hours...

Algebra word problem

A rectangular sheet of paper has a perimeter of 36 inches. The length of the paper is 10 inches less than three times its width. Find the dimensions of the sheet of paper.

I would figure w^2-34 but i dont know how to find w from there on..? Help!!

i dont understand how you would write this equation

A chartered riverboat cruise travels 48 miles upstream, then returns to port. The boat speed without a current is 20 mph. If th round trip takes 5 hours, what is the speed of the current?

Setup, work, and answer, please. I have an idea of what to do but my teacher requires a full algebraic setup so I got confused.

The birth rate is the number of births per 1000 women. A multiple birth rate is any birth with 2 or more children born. A) What are the independent and dependent variables? B) What is the...

1,344 people 621 males

Fractions in word problems