Proportions & Ratios

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 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 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 Mallory made 460 baskets in 12 hours. At this rate, how many baskets can she make in 3 hours? 165 120 153 115