2 boxes of salt and a box of sugar cost 6.60. a box of salt is 1.20 less than then a box of sugar. what is the cost of a box of sugar?

Question

Please help me figure this out soon thanks

Answer 1

Let X be the cost of a box of Salt and

Let Y be the cost of a box of Sugar

 

then from above question,

 

2X+Y=6.6.............(1) Eqn

 

X=Y-1.2................(2) Eqn

 

Solving Eqn (1) And Eqn (2), we get

 

Substituting the value of X from Eqn(1) into Eqn (2)

2(Y-1.2)+Y=6.6

or, 2Y-2.4+Y=6.6

or, 3Y=6.6+2.4

or, Y=9/3=3

 

Hence, the cost of a box of Sugar (Y) is 3.0//