Answer:
x + y = 29
5x + 2y = 100
Explanation:
Has 29 problems
then
x + y = 29
x be the number of worth 5 points questions:
5x
y be the number of worth 2 points questions
2y
the total both worth is 100 points
then:
5x + 2y = 100
Answer:
x + y = 29 5x + 2y = 100