Mathematics, 12.10.2019 10:30, gordon57
Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it.
the system of equations shown can be used to find the number of multiple-choice questions, m, and the number of free-response questions, f, on the test.
m + f = 15
3m + 5f = 51
how many multiple-choice questions are on the test?
3
5
12
14
Answers: 1
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