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Mrs.Wilson tells you that the next test is worth 100 points and contains 38 problems. Multiple-choice questions are worth 2 points each and word problems are worth 5 points. How many of each type of question is there?

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LeanSpark605

Answer: The test had  30  multiple choice questions, and  8  word problems.


Step-by-step explanation:

f we multiply the first equation by  −  2  we get

Now if we add both equations we get only equation with 1 unknown (y)

Substituting the calculated value to the first equation we get

The solution means that The test had  30  multiple choice questions, and 8  word problems.