The unit rate that the boat can travel during this time frame is 511 kilometers in 1 hour.
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So the teacher bought 1/4 of the brownie pan. And it came out to $4.
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The answer is straightforward, by the "rule of product":
There are
3×8×2=48
3×8×2=48
different combinations (distinct possible cars) that can be created.
There 33 choices for body style; 88 choices for exterior colors, and 22 choices of interior color schemes:
Since each of these choices are independent (the choice of body style doesn't depend on exterior or interior color, e.g.) we multiply the number of choices for each quality to obtain: 3×8×2=483×8×2=48 distinct ways to create a car
12n = 3-5n-1 or n =3-5n-1???