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Let's paint a happy little picture here. The two numbers we're looking for are 18 and 30. When you multiply them, you get 540, and when you add them together, you get 48. Just remember, there are always happy little solutions waiting to be found.
Here's how I did it:
I set up my two equations:
xy=540
x+y=12
Then, by subtraction
x=12-y
By substitution:
xy=540
(12-y)y=540
12y-y2=540
-y2+12y-540=0
Through the quadratic formula...
y=6 ± -6i√14
If you use addition for y, then you should subtract for x, so that x + y = 12
Add your answer:
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What is Two number multiply to 9 and add to 7.5?
16.5
What two number multiply to 1600 and add to 60?
1660
What two number multiply to get 16 and add to get -10?
6
What two numbers add up to -8 and when you multiply them they equal 36?
28
What is a trick for multiplying by the 12s?
First, multiply the original number by 10. Then multiply the original number by 2. Add the two answers that you got and you have just multiplied by 12. For Example: 7x12=(7x10)+(7x2) 70+14 84
What two numbers multiply to 540 but add up to 12?
552
What is Two number multiply to 9 and add to 7.5?
16.5
What two number multiply to 1600 and add to 60?
1660
What two number add up to -31 and multiply to -90?
-121
What two number multiply to get 55 and add to get 16?
71
What two number multiply to get 16 and add to get -10?
6
How do you multiply a three-digit number by a two-digit number?
Multiply the three-digit number by the one's digit, or last digit, of the two-digit number. That is your first part. Now multiply by the second-to-last digit, or ten's digit, and multiply the result by 10. That is your second part. Add the two parts and that is your answer.
What two numbers add up to -8 and when you multiply them they equal 36?
28
What two number can you add to get negitave 12 and multiply to get 20?
32
What is a trick for multiplying by the 12s?
First, multiply the original number by 10. Then multiply the original number by 2. Add the two answers that you got and you have just multiplied by 12. For Example: 7x12=(7x10)+(7x2) 70+14 84
How do you add two fractions with a different denominator?
You add two fractions with a different denominator by multiplying the denominators by a number that will make them equal. Be sure to multiply the numerator by that number too.
What two numbers do you add to get 0 and multiply to get 80?
80
