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Korolek [52]
3 years ago
12

A pendulum completes 7 swings every

Mathematics
1 answer:
abruzzese [7]3 years ago
5 0

Answer:

140 swings

Step-by-step explanation:

as we know that it completes 7 swings in 3 seconds so, to find swings of 1 second =7/3

an now we have to find swings of 60 seconds(1 minute=60 seconds)

so, swings of 1 min = 7/3×60

= 140 swings

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Our school swimming pool is 25 m long if our coach wants us to swim 3 km how many lengths of food will we need to swim ?
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We will have to divide the length the coach wants you to swim by the length of your pool to find how many laps you must swim.  However, we need to first convert 3 km to meters by multiplying by 1000 (because 1 km = 1000 m).

3 * 1000 = 3000 m

Now we can divide.

\frac{3000}{25} =  \frac{600}{5}= 120

You will need to swim 120 laps (not a realistic number).
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If salmon cost $6.5 per pound, what is the total cost of 1.3 pounds of salmon)
azamat

Explanation:

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Step-by-step explanation:

It's a website that's free and easy

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