For this case we have to:
x: Be the variable that represents the number of adult rounds
y: Be the variable that represents the number of rounds of children
We want to know for what amount of rounds bingo costs are the same for adults and children.
Adult costs = 2x + 13
Child costs = 3y + 10
Matching:

We want the same number of rounds, x = y:

Thus, for 3 rounds the costs are the same.
Answer:
3
Answer:
option C
15 14
-1 9
Step-by-step explanation:
Given in the question a 2x3 and 3x2 matrix
Since, the column of first matrix and row of second matrix is of equal integer, 3, so we can multiply them.
The resultant matrix will be of 2x2
We will use dot product
1(2) + 3(3) + 1(4) 1(-2) + 3(5) + 1(1)
-2(2) + 1(3) + 0(4) -2(-2) + 1(5) + 0(1)
15 14
-1 9
Answer:
625
Step-by-step explanation:
5x5x5x5=625
you multiply five four times because there are four groups of three in twelve