Collin bought 1/2 a pound of chocolate at Rocky Mountain Chocolate factory. Later, they went to The Sweet Shoppe and he bought 6/9 pounds more chocolate. How much chocolate did he buy that day?

1 1/6

Step-by-step explanation:

1/2+6/9

common denominator is 18 (2×9)

now lets divide what's bellow(denominators) by 18 , then multiply to numbers above the line(nominators) by that number and finally find sum of them

1) 18/2=9, 9×1=9

2)18/9=2, 2×6=12

answer will be sum of them with common denominator:

(12+9)/18=21/18

we can simplify both, up and down (denominator and nominator) of that rational number. I'll divide both by 3

(21:3)/(18:3)=7/6= 1 1/6

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.