On a math test, johnny made a raw score of 95 on a 40 question test. the correct answers were given 5 points each while incorrect answers deducted 2 points each. if johnny answered all of the questions, how many questions did johnny correctly answer?

X - the number of questions he answered correctly
y - the number of questions he answered incorrectly

There were 40 questions on the test.


The correct answers were given 5 points each, the incorrect answers were given -2 points each. He made a score of 95.


Set 40-x and (-95/2)+(5/2)x equal to each other:


Johnny answered correctly 25 questions.

You must find the surface of the block therefore 98187 dived by 5628 = 583m squared