40. ok so 1 part almods 2 parts walnuts 3 part rasins multiply them almonds=12 per pound walnuts=9 per pound rasins=5 per pound
therefor 12 times 1+9 times 2+5 times 3=cost of ratio=45 45=a ratio with 1lb almond, 2lb walnuts, 3lb rasins
we need it to get down to 15 45/x=15 x=3
$45=1a+2w+3r divide both sides by 3 $15=1/3a+2/3w+1r
we need to find total so add them 1/3+2/3+1=2
answer is 2lb
41. repair so he has to pay the employees so that is a minus from his income therefor 8600-22x 8600 is his income -22x is the amount he has to pay his employees
they are paid 22 dollars an hour and that is taken from his income so -22 times number of hour=amoont to pay employee therefor x=number of hours worked per week
Y = mx+b (slope intercept form). I imagine the point is (2,2) and m = 0. So the answer is y = 2. A sketch would be a horizontal line on the x-y plane going through (2,2).
