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Calculator. Page 8. Day 1: Linear Equations, Systems, Inequalities Practice. 1. 2. 3. A publishing company ships books to schools, some of which are hardback ...
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Day 1
Day 1: Linear Equations, Systems, Inequalities Notes
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Day 1: Linear Equations, Systems, Inequalities Practice
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A publishing company ships books to schools, some of which are hardback te xtbooks and some are paperback workbooks. Each shipping box can hold a maximum of 20 te x tbooks or 64 workbooks. Each te x tbook takes up 192 cubic inches of space, and each workbook takes up 60 cubic inches of space. One box can hold a maximum of 3,840 cubic inches. The shipping department is packing a box containing both types of books. Which of the following systems of inequalities can the department use to determine
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If 0.2x + 1.8 = 3 - 0.6x, what is the value of x?
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Projected Number of Units Sold $0. 20 150, $0. 25 135,
$0.30 120, $0. 35 105, $0.40 90,
$0.45 75 ,
Generally, the price of an item is a good indicator of how many units of that item will be sold. The lower the price, the more units will be sold. A marketing department develops a table showing various price points and the projected number of units sold at that price point. Which of the following represents the linear relationship shown in the table, where x is the price and y is the number of units sold?
A mailing supply store sells small shipping boxes in packs of 8 or 20. If the store has 61 packs in stock totaling 800 small shipping boxes, how many packs have 20 boxes in them, assuming all the packs are full?
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A company's market share is the percent of consumers who utilize the services or buy the products of that company. The pie chart above shows the different market shares of cable prov iders in a certa in region. If the ratio of the market shares of Provider 1 to Provider 2 is 3 : 2, what is Provider l's market share?
Water is vital to human health. An average person should consume approximately 2.5 ounces of water per hour. However , because of the salt in it, seawater actually dehydrates the human body and should not be consumed. This is why boats must carry a supply of fresh water when embarking on long trips. Suppose a sailboat is traveling at an average speed of 4 nautical miles per hour with 3 people on board and the trip is 232 nautical miles. What is the minimum number of ounces of water the boat should stock before leaving?
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Increased physical activity has been linked to a lower incidence rate of diabetes. The scatterplot above shows the relationship between the percent of people in a certain country whose daily activity qualifies them as " inactive " and the incidence rate of diabetes in that country. The line of best fit for the data is also shown. Whi ch of the following best represents the meaning of the y-intercept of the line of best fit in the conte xt of this question?
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The bar graph shows the percent of the United States population that was unemployed as of January 1 on each of the years shown. A governmental agency wants to use the 5-year mean of the da t a to estimate how many people were unemployed in a certain geographic area between 2010 and 2014. If the total adult population of the area was 250,000, appro x imately how many adults were unemployed in that area during the indicated time period?
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Which of the following values most accurately reflects the average rate of change of the data based on the line of best fit?
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The figure above shows part of the path of a planned roller coaster hill. What is the sum, in feet, of the vertical height and the horizontal distance that the roller coaster will travel while on this particular hill?
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The Florida Department of Wildlife caught and tagged 10 adult female alligators as part of an effort to protect this endangered species. They took various measurements and readings related to body size and health. The total body length is plotted against the tail length in the scatterplot shown above, along with a line of best fit. Which of the following equations best models the data?
The American political system is largely a twoparty system. In fact, only six candidates who were not associated with ei ther the Republican or the Democratic Party have been elected governor in any state since 1990. In one such election, the ratio of votes received for the Independent candidate to the Democratic candidate to the Republican candidate was approximately 19 : 18 : 13. If 510,000 votes were cast in the election, how many more votes were cast for the Independent candidate than for the Republican candidate?
Day 2: Problem Solving, Statistics, Probability, Proportions, Percents Practice
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Selection Method
Number of States
There are four ways in which state judges are selected for their positions. One is by election , another is appointment by the governor ( usually with the confirmation by the state legislature) , and a third is appointment by the state legislature. The final way is a hybrid of the last two, called the Missouri Plan, in which a nonpartisan legislative committee recommends a list of candidates and the governor chooses from this list. The table above shows the number of states that engage in each process for the hi ghest court of the state , usually called the state Supreme Court. What percent of states select judges using the Missouri Plan?
A dendrologist (a botanist who studies trees exclusively) is examining the way in which a certain tree sheds i ts leaves. He tracks the number of leaves shed each day over the period of a month , start ing when the first leaf is shed. He organizes the data in a
6 ( 1.92 )", where xis the number of days after the tree began to shed i ts leaves. What does the value 1.92 in the function tell the dendrologis t?
Plants are capable of cross-pollinating with related but different plants. This creates a hybrid Sometimes, a hybrid plant is superior to the two different plants from which it was derived. Th is as " hybrid vigor ." Scientists can examine the DNA of a plant to see if it is a hybrid. This can information because if the plant appears superior, it w ould be beneficial to develop more of these An agricultural scient i st examines an orchard that has several types of apple trees and orange which ones are hybrids. Some of the information she collected is shown in the table below.
Apple Orange Total Trees Trees Hybrid 402
Non-hybrid 118
Based on the data , if 45% of the apple trees are not hybrids, how many apple trees are hybrids?
The scientist wants to study the orange trees to check for hybrid vigor. If she chooses one orange tree at random , what is the probabil i ty that it will be a hybr id?
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Day 3: Exponents, Radicals, Polynomials, Advanced Equations, Functions Notes
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If M = 3x2 + 9x - 4 and N = sx2 - 12, what is 2{M - N)?
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