The sum is 8 wholes because if you add 3 and 2 you get 5 and the denominator stays the same so that becomes a whole and you add that 7 wholes plus the other 1 whole and you get 8
Example:
5/20 x 100 you put whatever fraction your looking for into calculator and multiply by 100
Answer:


Step-by-step explanation:
Let x be the number of adult tickets and y be the number of children's tickets.
We are given that there are total 12 people. Therefore, we can set:

Moreover, we are given that an adult ticket costs $21.50 and a child's ticket costs $14.75, therefore, cost of x adult tickets will be
and cost of y children's ticket will be
. We can form the second equation by setting the total cost of tickets as:

Therefore, the required system of equations that could be used to find x and y will be:


As the weight increases, the price increases.