Proportions and Ratios - 7.1.2.a

What is the value of x in the equation: 2 = 12 3 x x = 8 x =13 x=15 x=18 At work, Mr. Grinnell receives 20 phone calls every 60 minutes. How many calls should he expect to receive in 180 minutes? Mr. Grinnell should expect to receive 60 phone calls in 180 minutes. What is the value of n in the following equation? - 13 = 1 52 n -4 -14 14 4 The graph below shows a builder's profit for townhouses he sold.What is the builder's increase in profit if he sells 5 more townhouses? $8,000 $20,000 $40,000 $45,000 In a school election, Jared received 76 votes, which was 40% of the total numbers of votes cast. What was the total number of votes cast? 116 127 190 304 Which of these situations is an appropriate use of percent? Calculating the minutes on a cell phone. Calculating the grade on your Science quiz. Calculating the number of programs you watch on TV during the week. Calculating the number of teachers in the cafeteria at 12:15. Sarah jumps rope to keep in shape. She jumps an average of 20 times in 15 seconds. Which of these describes her jumping rate? 60 minutes per jump 60 jumps per minute 80 minutes per jump 80 jumps per minute A typical milk tank holds 2500 gallons of milk when full. How many quarts of milk are equivalent to 2500 gallons? 625 quarts 1250 quarts 5,000 quarts 10,000 quarts The results of a student council election are listed in the chart.If 775 students voted, approximately how many students voted for Jennifer? 75 155 350 375 The advisable amount of food that should be consumed during a 24-hour period by a kitten that weighs about 1 pound is shown in the table.Which equation describes this relationship? 2 h = t3 1.5h = t t +4 = h h+6 = t