SOLUTION: The product of two numbers is 2400. one number is 20 more than the other. What are the two numbers? i found the answer but not using algebra expressions, so can you explain how to
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Question 830490: The product of two numbers is 2400. one number is 20 more than the other. What are the two numbers? i found the answer but not using algebra expressions, so can you explain how to use with this question.
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
This is probably EASIER with algebra than without it.
Two numbers, m and n.
mn=2400;
and
n=20+m.
What could be easier or simpler than those two small equations?
You simply have this system of simultaneous equations:
----------
----------
---------
Solve for m and n. The simplest thing to do is use the formula for n and substitute into the product equation.
-------which is either factorable OR can be solved (for m) using the general solution to the quadratic formula. Once found, use the known m to compute n.
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