Help please! 1/2x + 3 < 4x - 7 ANSWERS ARE BELOW
1 answer:
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Total numbers of cars present in the rally is 135
Amount paid by a single driver to participate in the rally = $25
Total amount generated by the participation fee from each driver is equal to the sum of amount paid by all the 135 cars.
Since we cannot add $25 for 135 times, we use multiplication operation.
Total amount = amount paid by one single driver multiplied by the total number of cars.
Total amount = $ .... Answer
So the car is moving at 651 revolutions per minute, with wheels of a radius of 18inches
so, one revolution, is just one go-around a circle, and thus 2π, 651 revolutions is just 2π * 651, or 1302π, the wheels are moving at that "angular velocity"
now, what's the linear velocity, namely, the arc covered per minute
well
now, how much is that in miles/hrs? well
let's keep in mind that, there are 12inches in 1foot, and 5280ft in 1mile, whilst 60mins in 1hr
thus
notice, after all the units cancellations, you're only left with mi/hrs
so, one revolution, is just one go-around a circle, and thus 2π, 651 revolutions is just 2π * 651, or 1302π, the wheels are moving at that "angular velocity"
now, what's the linear velocity, namely, the arc covered per minute
well
now, how much is that in miles/hrs? well
let's keep in mind that, there are 12inches in 1foot, and 5280ft in 1mile, whilst 60mins in 1hr
thus
notice, after all the units cancellations, you're only left with mi/hrs