I guess you mean: What number when you subtract 20, gives 40 as the answer?
x - 20 = 40.
Add 20 to both sides: x - 20 + 20 = 40 + 20
x = 60
A number "m" plus 40 equals 60. Therefore, 60 minus 40 equals m. m therefore equals 20.
The numbers are: -2 and -20
20 is the GCF. The LCM is 40.
Of course!
2/x =16/20 16x = 40 x = 2.5
A number "m" plus 40 equals 60. Therefore, 60 minus 40 equals m. m therefore equals 20.
The numbers are: -2 and -20
20 is the GCF. The LCM is 40.
It is: 20*40 = 800
20% of 40= 20% * 40= 0.2 * 40= 8
20 times 2 = 40
Percentages seem to confuse a lot of people but they really shouldn't. A percentage is simply a fraction. 40% is written as .40 or 4/10. So let's say your given number is 20. To add 40% to 20 you multiply 20 by 1.4 and the answer is 28. The reason you multiply by 1 is you are ADDING 40% so you want the original number you started with. 20 times 1 equals 20. So we have our original number in our answer. The .4 comes from 40%. 20 times .4 equals 8. So 20 plus 8 equal 28.
Of course!
Well, isn't that just a happy little math problem? If we take a moment to think about it, we can see that 20 times what number equals 800? That's right, it's 40! Just like painting a beautiful landscape, sometimes all it takes is a little patience and a gentle touch to find the answer.
2/x =16/20 16x = 40 x = 2.5
40/10 = 20/a 4= 20/a 20/4 = a a= 5
40/2