How do you evaluate x+2y given x=1/2 and y=-2/5?
1 Answer
Nov 8, 2016
Explanation:
Substitute the given numeric values for x and y into the expression.
#rArrx+2y=1/2+(2xx-2/5)#
#=1/2+(-4/5)=1/2-4/5# Before subtracting the fractions, we require them to have a common denominator.
#rArr(1/2xx5/5)-(4/5xx2/2)=5/10-8/10=-3/10#
