Seriously? the 20oz bag for $1.60 is cheaper per oz.
Hope this helps!
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V - the crew rowing rate,
u - rate of the current.
Downstream: v + u = 13.5/1.5 = 9 mph
Upstream : v - u = 13.5/4.5 = 3 mph
u = 9 - v
v - ( 9 - v ) = 3
v - 9 + v = 3
2 v = 12
v = 6 mph, u = 9 - 6 = 3 mph
Answer: the crew`s rowing rate is 6 mph and the rate of the current is 3 mph.
7 + 8 + 5 = 20 total marbles
8 blue
probability of picking a blue marble = 8/20, reduces to 2/5 = 0.40
since she puts the first marble back, the 2nd pick is the same probability as the first one
so the probability of picking 2 blue would be 0.40 x 0.40 = 0.16
The correct answer is 21.2.
Answer and Explanation:
If the rectangle is dilated by a scale factor of 2, that means that all of its sides are doubled.
(a) Originally, AB = CD = 15
So, we just multiply 15 by 2: 15 * 2 = 30. Now, A'B' = C'D' = 30 cm
Originally, AC = BD = 8
We just multiply 8 by 2: 8 * 2 = 16. Now, A'C' = B'D' = 16 cm
(b) Basically, the drawing will be of a new rectangle with dimensions of 30 cm by 16 cm.