Answer:
Step-by-step explanation:
Given
There are 120 Pianist in a competition
(a)In first round 30 pianist is selected
this can be done in
(b)In the second round 5 pianist is selected out of 30
this can be doe by
Using radicals, write an equivalent expression for the expression y^{\frac{1}{5}}.
2 answers:
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Answer:
38.25 kg
Step-by-step explanation:
Let the number of apples sold = x
Now, on the first hour he sold 15% of the apples i.e. he sold 0.15x kg of apples.
So, the remaining apples = x - 0.15x = 0.85x
Further, on the second hour he sold 20% of the remaining apples i.e. he sold 0.20 × 0.85x = 0.17x kg of apples.
Thus, the remaining apples = 0.85x - 0.17x = 0.68x
Then, on the third hour he sold 25% of the remaining apples i.e. he sold 0.25 × 0.68x = 0.17x kg of apples.
So, the remaining apples = 0.68x - 0.17x = 0.51x
Moreover, on the fourth hour he will sell 30% ( i.e. 5% more of 25% ) of the remaining apples i.e. he sold 0.30 × 0.51x = 0.153x kg of apples.
As, during the second hour, he sold 25.5 kg of apples.
Then, 0.17x = 25.5 i.e. i.e. x = 250
Hence, during the fourth hour, he will sell 0.153x = 0.153 × 250 = 38.25 kg of apples.
The average speed of Joshua during that time is 2500 m/h.
Explanation:
It is given that Joshua started cycling at 5:15 pm. By 8:09 pm he has covered a distance of 7250 m.
The total time taken by Joshua from 5:15 pm to 8:09 pm is
Dividing we get,
Adding, we have,
Thus, the total time taken by Joshua is
To determine the average speed we use the formula,
where and
Hence, substituting the values we have,
Dividing, we get,
Thus, the average speed of Joshua during that time is 2500 m/h.