If you divide the cost by the ounces, that will be the unit rate.
3.60 divided by 12 is 0.3 or 30 cents. 5 divided by 20 is 0.25 or 25 cents. 6.40 divided by 32 is 0.20 or 20 cents
Let Sister's age now = s
So Larry is now s + 8
In THREE Years Sister = s + 3
Larry = {s + 8} + 3
But We are told that he will be TWICE as old as Sister is NOW!!!
So s + 11 = {2s}
Solve s = 11
So Sister is ELEVEN Years old and Larry is NINETEEN Years old.
Answer:
-x^4 - 2x^3 +2x + 5
Step-by-step explanation:
(x + 3) – [(x + 2) (xᶺ3 – 1)]
(x + 3) - [(x^4 - x + 2x^3 - 2)]
(x + 3) - (x^4 - x + 2x^3 - 2)
-x^4 - 2x^3 +2x + 5
