Posted by **mary** on Monday, October 26, 2009 at 7:40pm.

what are two whole numbers whos product is 1,224 and whos sum is 70

- math -
**jim**, Monday, October 26, 2009 at 7:57pm
You can do this with an equation.

Let one of the numbers be x. Then the other is (70-x).

And we know that x(70-x) = 1224

So -x^2 + 70x = 1224

and solve the quadratic from there.

Another way is to list the prime factors of 1224, and guess your way through. Hint: 17 is a prime factor, which means one of the numbers would have to be 17, 34, 51 or 68, and 68 doesn't look awfully likely!

## Answer this Question

## Related Questions

- English - I have this sentence: Whos in the office now? My answer choices are ...
- math algebra - what are 4 consecutive integers whos sum is -2
- math - Find the two numbers that multiply to the product number and add to the ...
- Math - Two numbers have a product of 3 1/5 and a sum of 3 3/5. One of the ...
- math 5th grade - two numbers have a product of 3 1/5 and a sum of 3 3/5. One of ...
- maths - the sum of N positive integers is 19. what is the maximum possible ...
- Math - The number 4641 can be expressed as the product of two 2-digit whole ...
- Math - The sum of two whole numbers is 9,and their positive difference is 5.what...
- math - I am thinking of 3 different whole numbers which have a product of 36. 5 ...
- math-word problems with quadratics - I have 5 questions... 1) The sum of two ...

More Related Questions