Question 651498
 the product of two numbers is 30. if one of the numbers i four fifths, what is the other number?
:
Let x = the other number
{{{4/5}}}x = 30
multiply both sides by 5
4x = 150
x = 150/4
x = 37{{{1/2}}}
:
:
Check this using decimal values, x = 37.5 and 4/5 = .8
.8 * 37.5 = 30