# Questions on Algebra: Average answered by real tutors!

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 Question 204184: During the last hour, a telemarketer dialed 25 numbers and reached 7 busy signals, 3 answering machines, and 15 people. Use this information to determine the empirical probability that the next call will be answered in person. Click here to see answer by Theo(3556)

 Question 204174: An independent television station airs a movie-of-the-day every Tuesday and Thursday. Their market research shows that their suspense movies are viewed by an average of 3500 people, their comedies are viewed by 4500 people, and their dramas are viewed by 6000 people. The station buys a package of 100 movies, consisting of 15 suspense movies, 40 comedies, and 45 dramas. The movies will be shown two per week for 50 weeks. Find the expected number of viewers on a given movie. A. 4667 B. 479 C. 140 D. 5025 E. 1400 Click here to see answer by feliz1965(151)

 Question 204775: How many different ways are there for an admissions officer to select a group of 6 college candidates from a group of 15 applicants for an interview? Click here to see answer by edjones(7794)

 Question 204929: Is average concept of the median or mean in agroup of numbers? Click here to see answer by stanbon(60771)

 Question 205414: Sue's average for 9 games of bowling is 108. What is the lowest score she can receive for the tenth game to have an average of 110? Click here to see answer by stanbon(60771)

 Question 205977: Bob wants to have concrete driveway in fron of his house. The driveway will measure 58 2/3 feet long and 18 1/2 feet wide; and will be 3/4 foot thick. How many cubic yards of cement will be needed for the driveway? Round your answer to the nearest cubic yard. Click here to see answer by Alan3354(34674)

 Question 206163: Estimate: 0.5162 + 9.436 + 350.12 + 800.25 + 25.78 = 3004 x 5982 = Click here to see answer by checkley77(12569)

 Question 206162: Find a counterexample to the statement "The sum of two spuares is an even number" Click here to see answer by Alan3354(34674)

 Question 206442: The average of x, y, and z is 80. If two of the numbers are 74 and 78, then what is the other number? Click here to see answer by dyakobovitch(40)

 Question 206816: How much cacao must be added to 12kgs of chocolate containing 50% cacao in order that the resulting mixture will contain 75% cacao? Click here to see answer by Earlsdon(6294)

 Question 206968: On six exams, Alex has scored 82, 86, 75, 91, 92, and 87 points out of 100. He wants to earn at least a B in the course, which corresponds to an overall average grade of 82 or better. Out of 100 points, what is the minimum number of points Alex must earn on the final exam to achieve this goal? Click here to see answer by ankor@dixie-net.com(16523)

 Question 206978: A company is considering manufacturing a new product that has two different flavors, orange and cherry. They surveyed 150 people. The results are as follows. 75 liked cherry 94 liked orange 22 like both flavors Construct a Venn diagram and answer the following: a) how many liked only orange flavor? b) how many liked only cherry flavor? c) how many liked either one or the other or both? d) how many liked neither? Click here to see answer by mickclns(59)

 Question 207534: if a person has 4 test scores that are 100 82 78 and 84 what will they need to score on the next test to get a 85% average? Click here to see answer by rfer(13569)

 Question 207503: 9. In a college, some courses contribute more towards an overall GPA than other courses. For example, a science class is worth 4 points; mathematics is worth 3 points; history is worth 2 points; and English is worth 3 points. The values of the grade letters are as follows, A= 4, B=3, C=2, D=1, F=0. What is the GPA of a student who made a “C” in Trigonometry, a “B” in American History, an “A” in Botany, and a “B” in Microbiology? A. 2.59 B. 2.86 C. 3.08 D. 3.33 E. 3.67 Click here to see answer by ankor@dixie-net.com(16523)

 Question 208575: How do I work this problem:"Latisha started with two scores: 72% and 89%. Confirm that the average of these two scores is 80.5%." Click here to see answer by checkley77(12569)

 Question 208766: Use Euler Diagrams to determine whether the following syllogism is valid or invalid. All golfers have golf carts. All members of the A club have golf carts. --------------------------------------------------  All members of the A club are golfers Click here to see answer by DRichardson(63)

 Question 208765: Write the converse, inverse, and contrapositive of the following conditional statement If the sun is shining, then it will not rain. Click here to see answer by DRichardson(63)

 Question 208804: Determine the truth value of the statement ~q <-> [~ r ~ (p ^ q)] when p is false, q is true, and r is true Click here to see answer by Edwin McCravy(9716)

 Question 209235: what number must be added to 28 and 36 to give an average of 29 ? a) 23 b) 32 c)21 d)4 e) 5 Click here to see answer by nyc_function(2741)

 Question 209430: ) A drinking glass is in the shape of a cylinder that is 5 cm in diameter and 140 mm tall. How many cubic centimeters of water will it hold? (Approximate solution to the nearest tenth.) Click here to see answer by Earlsdon(6294)
 Question 209430: ) A drinking glass is in the shape of a cylinder that is 5 cm in diameter and 140 mm tall. How many cubic centimeters of water will it hold? (Approximate solution to the nearest tenth.) Click here to see answer by Alan3354(34674)

 Question 209437: We can use the Pythagorean Theorem to solve problems that involve right triangles. Provide an example of a day-to-day situation that involves right triangles and the use of the theorem. Click here to see answer by Alan3354(34674)

 Question 209429: What is the area and circumference of a circle with diameter 22 mm? (Give exact solutions. Include correct units with each!) Click here to see answer by Alan3354(34674)

 Question 209433: A diagonal walk through a rectangular rose garden 18 meters by 24 meters can be built at \$12 per linear meter. How much will the walk cost? Click here to see answer by checkley77(12569)

 Question 209428: ) A diagonal walk through a rectangular rose garden 18 meters by 24 meters can be built at \$12 per linear meter. How much will the walk cost? Click here to see answer by checkley77(12569)

 Question 209427: ) /_PQR and /_ABC are complementary angles and /_PQR is nine times as large as /_ ABC. Determine the measure of each angle. Click here to see answer by checkley77(12569)

 Question 209745: a) Find the area of a trapezoid with a height of 6 m and bases of 14 m and 21 m b) Find the perimeter of the parallelogram below. 9" x 4"x 5" I am not able to draw or cut and past the picture. Click here to see answer by stanbon(60771)

 Question 209763: Find the perimeter and area of a right triangle if the shortest side is 7 cm and the longest side is 25 cm. Click here to see answer by 314(4)

 Question 209752: goin into final exam, which will count as two-thirds of the final grade, Mike has test scores of 86, 80, 84, and 90. What score does Mike need on the final in order to earn a B, which requires an average score of 80? What does he need to earn an A? Click here to see answer by ankor@dixie-net.com(16523)

 Question 209983: i dont know how to decide whether this eguation " 3x + 5+= 2y" is a linear function. Click here to see answer by Earlsdon(6294)

 Question 210034: conical water tank has a base with a diameter of 6 ft and is 10 ft tall. How many gallons of water will the tank hold? Round your solution to the nearest hundredth. (1 cubic foot holds about 7.480519 gallons) Click here to see answer by tutor_paul(493)

 Question 210033: the volume of a refrigerator that is a rectangular solid and is 2 meters tall and has a base that is 1.2 meters square. I am wanting to check my work on this one...I am trying thanks so much for your help.... Click here to see answer by tutor_paul(493)

 Question 210194: Find the volume of the figure below with a circular base shown below. Give answer a. exactly and b. approximated to the nearest hundredth. 12 ft round by 10 ft. high cylinder. Click here to see answer by Alan3354(34674)

 Question 210360: The average temperature for a five-day business week was 23 degrees. The temperatures for three of the days were 21 degrees, 30 degrees , and 22degrees respectively. Of the two remaining days, the warmer of the two is 6 degrees more than the cooler of the two. Determine the cooler of the two remaining temperatures. Click here to see answer by stanbon(60771)

 Question 210696: a =b+3(4-c) If b equals 5 and c equals 2 what is a Click here to see answer by tutor_paul(493)

 Question 210830: I am having trouble remembering how to solve this: 189x / 2 please show me step by step how to solve this, thank you. Click here to see answer by checkley77(12569)

 Question 211058: The last 50 violent crimes committed in Maryville were 9 homicides, 24 robberies, and 17 assaults. What is the empirical probability that the next violent crime committed in Maryville will be an assault? Click here to see answer by stanbon(60771)

 Question 211062: How many different three-digit numbers can be formed from the digits 0 through 9 if the first digit must be odd and the last digit must be even? Click here to see answer by stanbon(60771)

 Question 211064: 1000 raffle tickets are sold at \$3 each. One grand prize of \$100 and two consolation prizes of \$75 will be awarded. Find Jake’s expectation if he purchases one ticket. A) -\$2.75 B) -\$3.00 C) \$0.24 D) \$2.75 E) \$3.00 Click here to see answer by edjones(7794)

 Question 211060: The odds against Lightning winning the third race are 9:4. If Sally places an \$8 bet on Lightning to win and Lightning wins, find Sally’s net winnings A) \$2.25 B) \$36 C) \$18.00 D) \$9.00 E) \$72 Click here to see answer by edjones(7794)

 Question 211061: A box of chocolates contains 20 identically shaped chocolates. Four of them are filled with jelly, seven are filled with caramel, and nine are filled with nuts. What is the probability that one chocolate chosen at random is filled with caramel or nuts? Click here to see answer by edjones(7794)