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Sonny Kuphal
Wiki User
∙ 12y agoIf we call the two numbers a and b then ab = 140 and a + b = 31. Solving the second equation for b results in b = 31 - a. Then substituting this back into the first equation results in:
a(31 - a) = 140
Distribute and subtract 31 from both sides:
-a2 + 31a - 140 = 0
Use the quadratic formula to solve for a:
a = about 5.488 or 25.516
Then plug this numbers back into an original equation (such as a + b = 31) and solve for b. If a is 5.488 then b ends up being 25.516. If a is 25.516 then b ends up being 5.488.
So the two numbers are about 5.488 and 25.516. (The exact forms are (1/2)(31 - sqr(401)) and (1/2)(31 + sqr(401)) The plus or minus in the quadratic formula takes care of what both numbers will be, so you don't have to substitute back if you find both possible values for a.)
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-144
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-171
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15 and 10 if you multiply them. 140 and 10 if you add them. 160 and 10 if you subtract them. 1500 and 10 if you divide them.
What two numbers multiply together to equal 140?
There are infinitely many pairs. The simplest is 1 and 140.
What two numbers add up to -4 and multiply to -140?
-144
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-171
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280
What two numbers multiply to be 140?
70*2
What two numbers equal 150?
15 and 10 if you multiply them. 140 and 10 if you add them. 160 and 10 if you subtract them. 1500 and 10 if you divide them.
What two numbers multiply together to equal 140?
There are infinitely many pairs. The simplest is 1 and 140.
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what 2 numbers add to make five and multiply to make -36
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What two numbers add to give you 20 and multiply to give you 25?
45
What two numbers can you multiply and get 216 and then add the same numbers and get 15?
i do not no
