Josh is mixing together concrete to build a brick wall. He's made 6 gallons of concrete with a mixture of 50% water. The instruc
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For this case we have the following variables:
x: number of hours that it takes Mr. David to complete a job working alone.
y: number of hours it takes Mr. Ludwing to complete a job working alone.
k: number of hours it takes for both of them to do a job working together.
We now write the equation that models the problem.
To do this, we must add the work rate per hour of each and equal to the rate of work per hour of both.
We have then:
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The algebraic expression that models the problem is:
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<h2>37.5</h2>Step-by-step explanation:
Use Pythagorean theorem to solve for the right triangle.
Rounded answer to the nearest tenth would be 37.5 cm.