What is the slope of the line represented by the equation
10x +5y = 4?
a. 2
b. 1/2
c. -1/2
d. -2

D. -2

One may ask how I got this answer. Well, by simply isolating y.
The slope-intercept form also isolates y; it is y= mx + b, m being slope.
Thus, 5y =-10x +4. Then divide 5 to all sides. y= -2x  + 4/5
In the place of m is -2.
Hurray!

If you make it a little more clear i can answer it

If there are four friends then each would get, 1.25 or 1 1/4. so this is how i solved 5 ÷ 4 = 1.25 . hope this ; )