20 = Faces on an icosahedron.
what is the mathematical phrase for the verbal phrase the sum of a number and three
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 + 20x = 60
any number plus 0 equals the previously said number 20+0=20 demonstrates the zero property
20 nickels in a dollar
20 equals 8 more than a number y 20=y+8
20
20 can be divided by 20 and by 2. 20 divided by 20 equals 1, and 20 divided by 2 equals 10.
803 - 20 = 783
20 x 20
To find the number that, when added to a certain number, equals 46, you would subtract that number from 46. In this case, the number would be 46 minus the given number. For example, if the given number is 20, then the number that, when added to 20, equals 46 would be 46 - 20 = 26. Therefore, the number that, when added to the given number, equals 46 is 46 minus the given number.
At No(F) + At No(Na) = 20.At No of Calcium = 20.
20