Yes it is a geometric sequence and the common ratio is 2/3
Any singular matrix (a matrix with zero determinant) has no inverse.
Let the amount of adult tickets sold be x
Since the total of 380 tickets sold consists of the amount of adult tickets and the amount of children tickets that are 70 fewer:
x + (x - 70) = 380
2x - 70 =380
2x = 450
x = 225
Therefore, the amount of adult tickets sold is 225
Answer:
See below.
Step-by-step explanation:
1. The opposite sides of a parallelogram and a rectangle are equal.
All angles in a rectangle are right angles. A parallelogram has 2 pairs of opposite equal angles, the angles are not necessarily right angles.
A rectangle is a special form of a parallelogram.
