Question

Next week your teacher will be giving you a chapter test. The test will consist on 35 questions. Some problems are worth 2 points and some are worth 4 points. There 20 questions worth 2 points. How many problems of 4 points are on the test.

Solving system of substitution.

Answer 1

the answer is 15 questions will be worth 4 points



if you have a total of 35 questions on a test and 20 of them are worth 2 points then you would do simple subtraction.

35-20=15