In solving this type of problem always look for the person you don't have any information about in this case it's Eve therefore Eve is X, Justin has $7.50 more than Eve, therefore X+$7.50 is Justin and Emma has $12 less than Justin, therefore subtract $12 from Justin X+$7.50-$12, since the total amount is $63 add all the numbers and equal them to $63. x+7+x+7.5-12+ x=63 3x+3=63 3x=60 x=20 Plug in the x for each person therefore Eve=$20 Justin=$20+$7.50= $27.50 Emma has $12 less than Justin therefore $15.50 Add all the money and it equals $63
8 p.........250 ml milk.........1 egg..........140 g flour.....5g butter 12 p.............................................................................x g butter 8/12=5/x x= 12*5/8=60/8 g= 7,5 g butter
