NEED HELP RIGHT AWAY DONT HAVE ANY TIME TO WAIT!!1). Mrs. Charlton is giving you a test worth 100 points containing 40 problems. There are two-point problems and four-point problems on the test. How many of each problem are on the test? SHOW YOUR WORK FOR FULL CREDIT! Explain all steps in complete sentences.2). Suppose you are starting an office-cleaning service. You have spent $315 on equipment. To clean an office, you use $4 worth of supplies. You charge $25 per office. How many offices must you clean to break even? SHOW YOUR WORK FOR FULL CREDIT! Explain all steps in complete sentences.3). A light plane flew from its home base to an airport 255 miles away. With the head wind, the trip took 1.7 hours. The return trip with a tail wind took 1.5 hours. Find the average airspeed of the plane and the average wind speed. SHOW YOUR WORK FOR FULL CREDIT! Explain all steps in complete sentences.
Accepted Solution
A:
Question 1: ------------------------
Total points = 100 Total question = 40 Type of questions : 2-points question and 4-points questions
Assumed all 40 questions are 2-points questions. Total points = 40 x 2 = 80
Difference in points = 100 - 80 = 20 points Difference in the 2 type of questions = 4 - 2 = 2
Number of 4 marks questions = 20 ÷ 2 = 10
Number of 2 marks questions = 40 - 10 = 30
Answer: There are 10 4-marks questions and 30 2-marks questions.