He paid ...
-- The cost of the lunches (100% = 1.00 of it)
-- 15% of the cost as a tip (15% = 0.15 of it)
-- 12% of the cost as sales tax (12% = 0.12 of it)
Total that he paid = (1.00 + 0.15 + 0.12) = 1.27 of $248.40
= $315.47 .
Trevor is one generous guy !
The second choice is correct. We know that x is less than or equal to five, so there should be a mark at 5 with the arrow pointing left. Since the problem shows the less than or equal to sign, the circle should be filled in.
Let L, W and P denote length, width and perimeter.
L = (2/3)W - 5
The perimeter, P, is 2W + 2L, and this, in turn, is
2W + 2((2/3)W - 5), or 2W + (4/3)W - 10, or
(2 + 4/3)W - 10, or (10/3)W - 10
x and 4x are supplementary to each other, meaning they add up to 180. So your equation is 180=5x. Divide both sides by 5 to get 36=x.
Answer:
Step-by-step explanation:
h(t)=160t-16t^2=-16(t²-10t+25-25)
=-16(t-5)²+400
max. height reached=400 ft