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 Test Calculators and Practice Answers archive Word Problems Lessons In Depth

 Question 149595: A bag contains two white marbles and one yellow marble. The marbles are randomly selected one at a time. What are the odds of picking the yellow marble on the first selection? Click here to see answer by Fombitz(13828)

 Question 149785: 60% of the area of Rectangle A is the same as 80% of the area of Rectangle B. Rectangle B is 25cm2 smaller than Rectangle A. Given that they both have a length of 25 cm, find the difference in their perimeter. Rmks: Pls try not to use algebra. Click here to see answer by kmcruz09(38)

 Question 149779: Tammy wants to complete a jigsaw puzzle. On the first day, she manages to fit 20% of the puzzle. On the second day, she fits another 60 pieces of the puzzle. As a result, the ratio of the number of fitted pieces to the number of unfitted pieces becomes 2:5. How many pieces does the jigsaw puzzle consist? Rmks: Pls try not to use algebra. Click here to see answer by nerdybill(7011)

 Question 149781: Shop X sells an antique watch for \$2 400 which is 25% less than the price which shop Y sells it for. During a sale, both shops offer an equal percentage discount on the watch. Mr Lee buys the watch in Shop Y and pays \$520 more than the discounted price in Shop X. What is the percentage discount? Rmks: Pls try not to use algebra. Click here to see answer by josmiceli(9819)

 Question 149783: Mother gave Claire and Jane each a certain amount of money to spend. If Jane spent all her money and Claire spect 3 times as much, Claire would have \$100 left. If Jane spent all her money and Claire spent 1/3 of what Jane spent, Claire would have \$580 left. Find the total amount of money given to Claire and Jane. Rmks: Pls try not to use algebra. Click here to see answer by stanbon(57984)

 Question 149604: The temperature was x degrees F. It rose to 8 degrees F. What was the original temperature? Write a linear model of the situation. Click here to see answer by Alan3354(31538)

 Question 150389: Round each number to the place value indicated. 582 tens 497,949 hundred thousands 6,097,597 ten thousands 155,680 hundred thousands Click here to see answer by Edwin McCravy(8999)

 Question 150387: Complete. The average life expectancy of a male in Italy is 75.13 years. The average life expectancy of a female in Italy is 82.22 years. How much longer is the average life expectancy of a female living in Italy? Click here to see answer by Ashleigh77(1)

 Question 150384: Complete. Seafloor rocks from a secret area above the Artic Circle were recently analyzed by Z-Globe. The company had a contract with Spacegov.biz tot est the rocks for nickel. Z-Globe found that six samples from the first location were composed of an average of 8.16% nickel. Ten samples from the second location yielded an average of 6.76% nickel. What was the overall average nickel content of the rock samples? Round your answer to the nearest hundredth. (Remember it is not the average of the two averages.) Click here to see answer by ankor@dixie-net.com(15747)

 Question 150388: The Washington Monument, built in memory of George Washington, is 169.29 meters hgh at its tip. On the day Jason and hs family visited the Monument, it cast a shadow 115.5 meters long. At the time, what was the distance from the tip of its shadow? Round your answer to the nearest meter. Click here to see answer by stanbon(57984)

 Question 150385: Granire is an igneous rock with a coarse grain. In one sample analyzed for grain size, the average grain size was 0.938 mm. In another sample from a different location, the average grain size was found to be 1.2 mm. What is the difference between the two average grain sizes? Click here to see answer by stanbon(57984)

 Question 150383: Order the decimals from least to greatest. 5.26, 5.29, 5.58 1.40, 1.04, 1.05 6.8, 7.32, 7.3 8.56, 8.02, 8.32 Click here to see answer by stanbon(57984)

 Question 150464: solve the rational inequality and graph the solution set on a real number line. x+12 ----- < 3 x-9 Click here to see answer by stanbon(57984)

 Question 150496: You are planning a 400-mile car trip. A portion of the trip will be on interstate highways where you average 65 miles per hour. The remainder will be on secondary roads where you average 50 miles per hour. Let x represent the portion traveled on the interstate. 1. write an expression for the total time for the trip 2.write your anwser to exercise 28 as a single rational expression. Click here to see answer by josmiceli(9819)

 Question 150734: Solve and graph on a number line: -3x-13>-4,D = {Integers} Click here to see answer by Fombitz(13828)

 Question 151084: Write the verbal phrase as an equation or an inequality. Difference of x and thrity is equal to fifty Sum of x and eleven is greater than or equal to forty Product of three and x is less then fourteen Quotient of x and 3.5 is equal to nine Click here to see answer by checkley77(12569)

 Question 151079: [88-(4 to the second power divided by 2)]-3] 1/2x28-4 to the second power Click here to see answer by checkley77(12569)

 Question 151078: Evaluate the numerical expression. 3.2(4.6-2 to the third power)-1 11[(25-8.7)-14] Click here to see answer by Fombitz(13828)

 Question 151275: The cost of 5 similar textbooks and 10 identical bookmarks is \$63. 5 bookmarks cost as much as 2 textbooks. Find the cost of a textbook. Click here to see answer by jojo14344(1512)

 Question 151471: if you osve this,can you please break down the steps and explain what to do because i dont know what to do when you 3 equations like these: A=11B A+x=5(B+x) A+x+5=3(B+x+5) Click here to see answer by checkley77(12569)

 Question 151560: hello may someone help me with this pronblem? Solve the following system of equations using any method: x - 2y = 5 3x - 5y = 8. Click here to see answer by Earlsdon(6294)

 Question 151696: Simplify by factoring: Assume that all expressions under radicals represent nonegative numbers. √245k^7q^8 Text book Intermiediate Algerbra (Pearson) Math 012 Click here to see answer by Earlsdon(6294)

 Question 151808: Solve: (x - 2/5) + (x - 7/3) = -1 Click here to see answer by vleith(2825)

 Question 151807: (x/x^2 - 16) ÷ (x^3/x^2 - 14x + 40) Click here to see answer by orca(409)

 Question 151871: 15 movie theater average 600 customers per theater per day. If 6 of the theaters close down but the total theater attendance stays the the same, what is the average daily attendance per theater among the remaining theaters? Click here to see answer by ankor@dixie-net.com(15747)

 Question 152067: Complete: If (x, 12, 13) is a Pythagorean triple, then x = ________ Click here to see answer by mangopeeler07(462)