11. Set up the rational work application problem. Shelby and Mary started a beading business to make mask lanyards. If they work together they can make 5 lanyards in 40
mins. Mary can make 5 lanyards in 70 mins if she works alone. How would you set up
the equation to solve for how long will it take for Shelby to make 5 lanyards by herself?
40 40
+ = 5
5 X
40 40
+
= 1
b. 70 X
40 70
+ = 1
c. 5 X
70 5
+ - = 1
d. 40 x
a.