Section 3.3 Solving Word Problems: Comparisons Copyright © 2013‚ 2010‚ 2006‚ 2003 Pearson Education‚ Inc. Example In a basketball game‚ the Vikings scored 12 points more than the Mustangs. A total of 78 points were scored. How many points were scored by each team? 1. Understand the problem. Let m = the number of points scored by the Mustangs. Let m + 12 = the number of points scored by the Vikings. 2. Write an equation. m + m + 12 = 78 Copyright © 2013‚ 2010‚ 2006‚ 2003 Pearson Education‚ Inc
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Mr. Gershwin is trying to find the right size grand piano to fit into his Room. The size of the room in his apartment is represented by a rectangle whose sides are described by the expressions 4x – 4 and 8x – 8. Introduction I believe the aim of the investigation was to find a perfect sized piano for Mr. Gershwin’s apartment. Mathematical Investigations 1. Mr Gershwin wants to buy a rectangular piano which is half the width and length of the room. Find the expressions for the length of each
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Grading Summary These are the automatically computed results of your exam. Grades for essay questions‚ and comments from your instructor‚ are in the "Details" section below. Date Taken: 5/28/2012 Time Spent: 09 secs Points Received: 28 / 35 (80%) Question Type: # Of Questions: # Correct: Multiple Choice 10 8 Grade Details - All Questions 1. Question : An environmental group at a local college is conducting independent tests to determine the distance a particular make
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Dimension | SI Units | English Unit | Length | meter(m) | foot(ft) | Mass | kilogram(kg) | pound-mass(lbm)1 | Time | second(s) | second(s) | Electric Current | ampere(A) | ampere(A) | Thermodynamic Temperature | kelvin(K) | rankine (R)1 | Amount of Substance | mole(mol) | mole(mol) | 1http://www.mne.psu.edu/cimbala/Learning/General/units.htm Conversion Factors Length 1 m= 3.281 ft 1 m = 39.37 in. 1 ft= 0.305 m 1 cm= 0.394 in. 1 in. = 2.540 cm 1 ft. = 30.48 cm 1 yd= 91.44
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Landslide Case study- La Canchita La Conchita is a very small community‚ located on the southern California coastline between Ventura and Santa Barbara. The community lies on a narrow strip of land about 250 meters (820 feet) wide between the shoreline and abutting a 180-meter (590 ft) high bluff. The top of the bluff is covered by avocado and citrus orchards. The bluff above La Conchita has a slope of approximately 35 degrees and consists of poorly cemented marine sediments On March 4‚ 1995
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Newtonian Mechanics 8.01 Units and Dimensional Analysis 1 Dimensions in Mechanics Physical quantities have dimensions. These quantities are the basic dimensions: - mass‚ length‚ time with dimension symbols M‚ L‚ T Other quantities’ dimensions are more complex: - [velocity] = length/time = LT-1 - [force] = (mass)(length) /(time)2 = MLT-2 - [any mechanical quantity] = Ma Lb Tc where a b‚ and c can be negative and/or non-integer 2 Base Quantities Name Length Time Mass Electric
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Riddle 4 Mec gesette soð sigora waldend The culminant lord of victories‚ Christ‚ Crist to compe. Oft ic cwice bærne‚ Created me for battle. Often I burn unrimu cyn eorþan getenge‚ Countless living creatures on middle-earth‚ næte mid niþe‚ swa ic him no hrine‚ Treat them to terror though I touch them not‚ þonne mec min frea feohtan hateþ. 5 When my lord rouses me to wage war. 5 Hwilum ic monigra mod arete‚ Sometimes I lighten the minds
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Quiz 2: Questions and answers from week 2 covering Chapters 3 and 5 in Cracolice and Peters. Question 1: Which of the following numbers are correctly expressed in exponential notation? i. 43‚200‚000 = 4.32 x 10 7 ii. 0.000977 = 9.77 x 10 4 iii. 606‚000 = 6.06 x 10 -5 iv. 0.00000175 = 1.75 x 10 -6 Answer: i and iv Question 2: Which of the following numbers are correctly expressed in ordinary decimal form? i. 6.21 x 10 5 = 621‚000 ii. 7.28 x 10 6 = 0.00000728 iii. 9.03 x 10 -4 = 0.000903 iv. 1.12 x
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Aim: To investigate the factors that affect the resistance in a conductor. The main factors that affect the resistance in a conductor are: · Length · Temperature · Cross sectional area · Material · Magnetism The factor that we are going to change is the cross sectional area. Hypothesis: I think that the higher the cross sectional area‚ the lower the resistance in the conductor will be. This is because the Resistance in a metal conductor happens because as the electrons move through the material
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FORCE AND MOTION Scalars vs. Vectors Scalars | Vectors | A scalar quantity has only magnitude. | A vector quantity has both magnitude and direction. | Scalars can be added‚ subtracted‚ multiplied and divided just as ordinary numbers‚ i.e.‚ scalars are subjected to simple arithmetic operations. | Vectors cannot be added‚ subtracted and multiplied following simple arithmetic laws. Arithmetic division of vectors is not possible at all. | Example: mass‚ volume‚ time‚ distance‚ speed‚ work‚ temperature
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