Using a system of equations, it is found that the correct option is:
A) 1389x+1660y=787x+1121y.
<h3>What is a system of equations?</h3>
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, considering the amounts in each olympics(1389 men and 787 women participated on the 19th, 1660 men and 1121 women in the 22th), the system is:
A) 1389x+1660y=787x+1121y.
More can be learned about a system of equations at brainly.com/question/24342899
Answer:
16 cups
Step-by-step explanation:
5x8=40
2x8=16
Answer:

Step-by-step explanation:
GIVEN: On a
question test students gain
points for each correct answer and lose
points on each incorrect answer. If everyone required to give an answer to each question.
TO FIND: the formulas that describes how a student's raw score, r, depends on the number of correct answers he or she provided, c.
SOLUTION:
Total number of incorrect questions 
Total marks deducted due to incorrect question 
Total correct questions 
Total marks scored 
Total raw marks 


ormulas that describes how a student's raw score, r, depends on the number of correct answers he or she provided, c is 
Answer:
Step-by-step explanation:
He earned 485.04. You have to add. Hence the words in all
he must buy 24 jackets to get atheist 260 dollars