contestada

Bret took a test in which 2points were earned correct response and -1/2 point was earned for each incorrect response. He answered 35 questions correctly and 15 questions incorrectly so his total number of points was 35(2) + [-1/2(15)]. Which is another way to write Brett's total number of points on the test?

Respuesta :

Given the following expression:

[tex]35(2)+\lbrack(-\frac{1}{2})(15)\rbrack[/tex]

we can solve both products to get:

[tex]70+(-\frac{15}{2})=70-7.5[/tex]

thus, another way to write Brett's total number of points on the test is 70-7.5

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