gordan is twice as old as tony was when gordan was as old as tony is now. combined age of gordan and tony is 112 years. how old
2 answers:
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Answer:
45 lbs of 90 cent candies and 5 lbs of 40 cent candies
Step-by-step explanation:
Answer:
Total number of points in the test = 100
Total number of items in the test = 40
Let number of items of 2 points be x and number of items of 3 points be y.
Now, using the given information the situation can be represented by using the following equations :
⇒ x + y = 40 .........(1)
⇒ 2x + 3y = 100 .........(2)
The matrix equation is :
By solving the equation (1) and equation (2), we get :
Solution : x = 20 and y = 20