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Umnica [9.8K]
3 years ago
10

For every two laps Jane swims Betty swims 3 laps. If they swim a total of 35 laps how many did each girls swim

Mathematics
1 answer:
7nadin3 [17]3 years ago
4 0

Answer:

betty swam 21 jane swam 14

Step-by-step explanation:

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I am an odd number. Take away one letter and I become even. What number am I?
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The radius of the tires of a car is 18 inches, and they are revolving at the rate of 651 revolutions per minute. How fast is the
Mumz [18]
So the car is moving at 651 revolutions per minute, with wheels of a radius of 18inches

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now, what's the linear velocity, namely, the arc covered per minute

well   \bf v=rw\qquad 
\begin{cases}
v=\textit{linear velocity}\\
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w=\textit{angular velocity}\\
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r=18in\\
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\\\\\\
v=\cfrac{23436\pi\ in}{min}

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   \bf \cfrac{23436\pi\ in}{min}\cdot \cfrac{ft}{12in}\cdot \cfrac{mi}{5280ft}\cdot \cfrac{60min}{hr}\implies \cfrac{23436\cdot \pi \cdot 60\ mi}{12\cdot 5280\ hr}

notice, after all the units cancellations, you're only left with mi/hrs
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3 years ago
9+10 please tell me.
Dima020 [189]
The answer would be 19.
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3 years ago
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