Pls help no one will A student worked the problem 35.8 times 9.3. the student answer was 3,329.4 use estimation to check weather
1 answer:
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Answer:
3.9 units
Step-by-step explanation:
We are given that,
Time taken by each swing = 2.2 seconds
The pendulum formula is given by, , where T is the time taken and L is the length of the swing.
So, we have,
i.e.
i.e.
i.e.
i.e.
i.e.
i.e.
i.e. L = 3.923 units
So, rounded to tenths, the length of the swing is 3.9 units.
Given parameters:
Percentage gain = 300%
Selling cost last year = $2420
Unknown:
Selling cost this year = ?
Solution:
To solve this problem;
Profit percent =
300 =
3 =
S- 2420 = 7260
S = $9680
To make a 300% gain, Jefferson Middle school needs a $9680 from fundraiser sales this year.