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4th Quarter Review #7 7th Grade Math 1) Which expression is equivalent to 1 4( x 2) (2 x 6) 2 a). 5x 4 b). 5x 5 2) What is the value of the expression when x 3 and y 4 for the expression: 1 yx 2 3) Michelle bought some fabric on 3 different occasions. Yards 2.2 3.6 4.2 Total Cost $2.53 $4.14 $4.83 What was the price per yard of fabric? c). 8x 4 d). 8x 5 6) Mr. Tucker earns $250 per working in an appliance store. In addition, he earns 2% extra on all of his sales. Last week, he sold $2,800 worth of appliances. What was Mr. Tucker’s total income for the week? 7) Change 11 to a 12 8) Find the volume of the triangular prism. decimal. Name: _________________ 4) T and V are complementary. T = (2 x 10) o V = (48) o What is the value of x? What is mT ? 5) The table below shows the grades for three students on five assignments. Student 1 2 3 Grades 77, 80, 100, 75, 82 84, 92, 80, 82, 85 88, 80, 79, 85, 90 Find the MAD of student 1: _______ x = ______________ Find the median of student 2: ______ mT = ______________ Find the mean of student 3: _______ 9) Find the radius, area, and circumference of the circle. 10) The rectangle will be resized using a scale factor of 1 . What will 4 be the perimeter of the new rectangle? 40 ft. 50 ft. Radius: ___________ Area: ____________ Volume: ___________ Circumference: _______ Perimeter = _____________ 11) Vicki and Paige are both on a bowling team. Below are their scores. Game 1 2 3 4 5 Vicki 141 159 128 148 136 12) Graph and connect the following points, then find the area of the figure. (3, 0) (3, 4) (-6, 4) (-6, 0) Paige 118 152 129 127 133 How much higher is Vicki’s median score than Paige’s median score? Area = _____________ 16) A die is rolled twice. What is the probability of rolling a 6 then rolling an odd number? 17) A table cloth has an area of 180 in 2 . If the length of the table cloth 30 in., what is the perimeter of the table cloth? 13) Mark earned the amounts listed below. Hours Worked (h) 15 22 26 Money Earned (E) $183.75 $269.50 $318.50 Which equation represents the amount of money earned for any number of hours worked? a). E 18.75 h b). E 12.25 h c). E 18.75h d). E 12.25h 18) Solve and graph. x 14 8 3 14) Brett made a scale drawing of a rectangular room in his house. The actual length of the 15) Tom’s yard is in the shape of a trapezoid. Find the area and perimeter of his yard. 4 5 room is 12 ft. The scale used was 1 in. = 1 4 ft. What is the length of the room on the drawing? Area = ___________ Perimeter = ___________ 19) The circumference of a circle is 188 meters. What is the approximate radius of the circle? 20) Which of the following has the largest area? a). Circle with diameter 10 ft. ____________________ x 30 in. b). Triangle with base of 10 ft. and height 7 ft. ______________________ Perimeter = _________ c). Square with side length of 10 ft. ______________________