Homework Help: algebra

Posted by kate on Wednesday, October 24, 2012 at 12:40am.

Ben Cole was hired to shovel 100 tons of coal. He has been shoveling coal at a rate of 16 tons per day. After 3 days his brother Char joins him so they can finish the job faster. Char can shovel 10 tons per day.
Find the amount of the 100 tons shoveled by each brother and the amount of time each brother works shoveling coal.

algebra - Henry, Thursday, October 25, 2012 at 5:19pm
3days * 16tons/day=48 Tons by Ben Cole
Bal. = 100 - 48 = 52 Tons.

X = The # of days they worked together.

10x + 16x = 52 tons.
26x = 52.
X = 2 Days.

48 + 16*2=80 Tons shoveled by Ben Cole
in 5 days(3+2).

100 - 80 = 20 Tons shoveled by Char in
2 days.

Answer this Question

Related Questions

Econimics - A coal producer has the following total cost: TC=$187,500+$5Q+$0....
Algebra 2 (Linear Programming) - The Carbon coal company has 2 mines, a surface ...
Power generation - need help 2. Large central power stations typically have a ...
chemistry - A particular coal contains 2.55% sulfur by mass. When the coal is ...
physics - How many joules of energy are required to run a 100 W light bulb for ...
chem - A particular coal contains 2.55% sulfur by mass. When the coal is burned...
physics - A sample of anthracite has a moisture content of 5% when mined and an ...
Thermo - Calculate the standard cahnge in enthalpy for the combusation of coal/ ...
chemistry - In a coal-fired electric generating plant, the coal is pulverized ...
MATH - A RADIO USES THE ENERGY EQUIVALENT 1/20 TON OF COAL PER YEAR. FIND THE ...

For Further Reading

First Name:
School Subject:
Answer: