Martin is taking a test at school. his teacher gave him 1 hour and 15 minutes to complete the test. he has been taking the test for 54 minutes. how many minutes does martin have left to finish the test?

Converting 1 hour and 15 minutes to minutes only, its 75 minutes. 75 - 54 is 21. So, Martin has 21 minutes left to finish.

Awnser:

He has 21 minutes left to complet his test

Step-By-Step:

1 hour+15 mins = 1hour and 15 mins

(60+15= 75)

1hour & 15 mins - 54 mins = 21 mins

(75-54=21)

Hope this helps :3

so far i think you have the right thing going for you just remember soh cah toh

step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.