Answer:
16.67% of cases of tapes were sold.
Step-by-step explanation:
We are given the following in the question:
Number of cases of tapes sold = 24
Thus is 20% of tapes left.
Let x be the total number of tapes left.
Thus, we can write:
Thus, total number of tapes =
Percentage of tapes sold =
Thus, 16.67% of cases of tapes were sold.
Given:
Trapezoid with bases 10 and 20, and height of the trapezoid is 6.
To find:
The area of the trapezoid.
Solution:
We know that the area of a trapezoid is:
Where, h is the height of the trapezoid and are bases of the trapezoid.
Putting in the above formula, we get
The area of the trapezoid is 90 sq units. Therefore, the correct option is A.