1. Maths

    Hi everyone. I've been struggling with the following maths question for a while and I'm not sure where I went wrong. 2(3x/5 - 1) = 10 and I need to solve for x I first tried turning everything into fractions over 5 but that gave me the answer of 10/3 which
  2. math

    convert 25mm= cm?????????????????????????????????????????????????????????????????????????????????????im confused wat is the metric table? the answer is 2.5cm. There are 10mm in 1 cm. So you can use this equation for that: ?mm/10=?cm Here is a simplified
  3. Pre-Calculus

    Find a solution to the equation if possible. Give the answer in exact form and in decimal form rounded to three decimal places. 1=21tan(2x+2)-6
  4. Math

    Express the repeating decimal 0.513 (the 13 is repeating so the decimal is 0.5131313131313...) as a fraction in lowest terms using the infinite geometric series method.
  5. college algebra

    Solve the exponential equation using logarithms. Give the answer in decimal form, rounding to four decimal places. (Enter your answers as a comma-separated list.) 4x − 3 = 32x x = _____
  6. fractions

    Ok I'm a Mom trying to figure this out to help my foster daughter it's harder because english is her second language. please explain how you get the answer I just could never grasp fractions and I want to help her thanks also I posted the first one but
  7. Math

    Write the decimal equivalent, using the bar notation. 13/18 b) Find the decimal equivalent of the mixed number. 6 3/5
  8. math

    what is different between a decimal and a decimal point?
  9. Math/Fractions

    1.Find the LCD and add the fractions. 1/125+4/50= 11/125, 1/1250, 1/35, 551/6250 My answer is 11/125 2.Subtract; then reduce answer to lowest terms. 5/22-1/41= 227/902,183/901,183/902,61/301 My answer is 183/902
  10. MATH

    a fraction with a denominater in the thousands will always have a decimal form with more decimal places than a fraction with a single-digit denominator. How would I determine if this statement is true or fals?
  11. math

    How many n-digit decimal sequences (using digits 0-9) are there with k 1s? Decimal sequences meaning you can have as many 0s in front of a number. For example: 000001234557891111 would be consider valid. So how do i come up with an equation? See my
  12. Trigonometry

    In a right triangle ABC, C = 90°, B = 38° 35' and a = 6.434 mi. Solve for all the missing parts using the given information. (Round each answer to three decimal places for sides and to two decimal places for angle.)
  13. 5th grade math

    Write 0.7 and 0.21 as factors, then multiply the factors change the product to a decimal 7/10 x 21/100 = 147/10,000 decimal would be .0147 Would that be correct?
  14. Physics

    A person is riding on a Ferris wheel. When the wheel makes one complete turn, is the net work done by the gravitational force positive, negative, or zero? Justify your answer. What to you think? After one complete turn the elevation remains unchanged.
  15. Math

    ummm what are some tips withh adding and subtracting fraction ? .... and what sign to you use when you have a postive and neg intger and you are add ing and what is it for subtracting I don't know what level you are at, so I will be very basic. The plus
  16. unknown riddle

    "JOHN DECIDES HE DOESn'T WANT TO WORK, HE TURNS OFF HIS LIGHT AND LEAVES. 200 PEOPLE DIE. WHAT WAS HIS JOB?" to turn off the light and leave The man who runs a lighthouse. You're missing the part of the story where the man is watching the news saying a
  17. geometry

    The lateral area of the right regular triangular prism is 18 cm^2.Find the total surface area.give your answer in decimal form rounded of to 2 decimal places
  18. Statistics

    A coin is tossed 7 times. What is the probability that the number of heads obtained will be between 2 and 4 inclusive? Express your answer as a fraction or a decimal number rounded to four decimal places.
  19. math % tas a decimal and fraction

    can youcheck these i need to write each percent to a decimal and a fraction in simplest form: 39) 175% d- .00175 f: 7/4000 40) 120% d: .00120 f: 6/5000 42) 5/8% d: 62.5 f: 62 1/2 44) 8 1/4% d: 8.25 f: 8 1/4
  20. help

    I turn polar bears white And I will make you cry. I make guys have to pee And girls comb their hair. I make celebrities look stupid And normal people look like celebrities. I turn pancakes brown And make your champane bubble. If you sqeeze me, I'll pop. If
  21. Little River

    Jack and Jill invented a Trivia game in which a player can score 0,6 or 11 points on each turn.each player must take at least one turn.write an equation for a total score of 45 points in the game.
  22. Math

    Fraction 7/8 Decimal 0.875 Percent 87.5 Fraction 49/50 Decimal 0.98 Percent 98% Fraction 1/4 Decimal 0.25 Percent 2.5% Simplify if needed.
  23. English

    1. You can write everything down. 2. You can write down everything. (Are both correct?) 2-2. You can write it down. (O) 2-3. You can write down it. (X) (When the object is a pronoun, we cannot write 'write down it', right? Then, what about #2? In #2,
  24. fractions

    my teacher gave us some fraction problems for homework, but I'm confused about how to go about solving the problem. The problem is what is 2/4 of 8. Can you show me the steps so I can do the rest of the math problems? 2/4 reduces (or simplies if you
  25. Math

    Rudulpho bought a set of wrenches to work on his car. He bought the following sizes 7/8 3/8 3/4 and 1/2. he wants to hang these on his garage wall in order from greatest to least. Which list shows the order in which he should have the wrenches A.7/8 3/8
  26. math help me plss

    1. How do you write 0.24% as a decimal? (1 point) 0.24 0.024 0.0024 2. How do you write 135% as a decimal? (1 point) 1.35 13.5 0.135 3. How do you write % as a decimal? (1 point) 0.002 0.02 0.2
  27. college stats

    Sorry for all the questions, I really need help and an explanation so I can fully understand. I really appreciate everything. Thank you. In a random sample of 519 judges, it was found that 285 had an introvert personality type. Construct a 95% confidence
  28. math

    Use the following table to answer the questions. (Give your answers correct to two decimal places.) x 1 1 3 3 5 5 7 7 9 9 y 3 2 6 1 3 3 3 2 5 3 (a) Find the equation of the line of best fit. yhat = + x (ii) Graph this equation on a scatter diagram. (Do
  29. Statistic help

    Use the following table to answer the questions. (Give your answers correct to two decimal places.) x 1 1 3 3 5 5 7 7 9 9 y 3 2 6 1 3 3 3 2 5 3 (a) Find the equation of the line of best fit. y hat = + x (ii) Graph this equation on a scatter diagram. (Do
  30. Math 231

    In Mr. Everett's first-period class, 18 of 25 students passed the last test. In his second period, 17 of 23 passed. Use the percents to conclude which class did better. Show all work.
  31. percents

    A company gives raises once a year. Amir's present salary is $12,000. His manager would like to raise his salary to $84,000. What percentage raise would he be recieving.
  32. algerbra 1

    The decimal notation for the fraction -9/16 is Round to the nearest hundreth Solve 5x+8x=78 The solution is x= Simplify the answer. Type an integer of decimal. Solve using the addition principle 9.5=p-9.2 The soluation is p=
  33. math

    how do you add and subtract and multiply and divide fractions? I searched Google under the key words "fractions add subtract multiply divide" to get these possible sources:
  34. Math / Percents

    What is the process to get this answer? Annie spends $600 a month on rent and makes $25,000 per year. To the nearest percent, what percent of her income does she spend on rent? Answer: 29%
  35. math statistics

    For each probability and percentile problem, draw the picture. A random number generator picks a number from 1 to 9 in a uniform manner. 1) Give the distribution of X. X = 2) Enter an exact number as an integer, fraction, or decimal. f(x) = where
  36. Algebra check+help?

    What percent of 225 is 99? So then I wrote out 225 Over X and then I wrote = To 99/100? Is that what you would do? Because if you add up all percents, you should always get 100? Could someone correct me and help me get the right answer? THANK YOU! -Allyson
  37. Chemistry

    You weigh out 1.60 g of sodium carbonate monohydrate, dissolve it in water and react it with 15.00 mL of 2.00 M HCl. Write an equation for the reaction and calculate the expected mass or carbon dioxide that will be produced. Your answer should be a decimal
  38. precal

    She doesn't know the exact route to her friends house. She knows that the route is 3 blocks to the first turn, 2 blocks to the second turn and then 1 block further. She can walk east, west or north when she leaves school and the blocks are 1/8 mile long.
  39. Math

    Do you think that advertised discounts are always the best deal? Why or why not? What is a real-world scenario in which the discount is not the best price? Think back to when you bought an item on sale or by using a discount. How did you determine the sale
  40. Math156-check answer

    find missing parts: percent fraction decimal ?? 1/200 ??? I think the percent is 0.5% I think the decimal should be .005 Am I right or wrong ? I am giving these my best shot, math is my worst subject.
  41. Math

    How are decimals used in everyday life? The main use I can think of is in money. Money is expressed in decimal form. Although for everyday use, we rely on inches, feet and yards for distance, other countries use decimal measures — millimeters,
  42. math

    sorry for reposting but i need an answer how would you write 565 nm as a decimal how would you write 590 nm as a decimal
  43. Math

    write each decimal as a percent: 1.07 35 0.003 0.0077 what do i do to convert the decimal into a percent??
  44. math

    write each fraction as a decimal and each decimal as a fraction in simplest form. 1.8/20 2.0.64 3.3/100
  45. Decimal division

    2 /25 = .08 why we add 0 with decimal, in some questions we don't add 0. Plz explain .
  46. decimals

    1.0 X 21 = 21 or 210 because of the decimal point, I just don't remenber how the decimal point works.
  47. English

    What can you do to save electricity? 1. I can unplug my computer when I go to bed. 2. I can turn off the lights when I leave my room. 3. I can unplug all the things such as the computer, the printer, the speaker, etc. 4. I can unplug the electric mat when
  48. math-fractions

    Each band member had 12 tickets to sell, Jamie sold 9 of his tickets Matt sold 6 of his tickets. Using fractions find the total number of tickets sold by Jamie & Matt
  49. math

    12 1/3 + 7 7/15 switch fractions to improper fractions then find a common denominator to find improper fraction of 12 1/3 multiply whole number (12) by the denominator of the fraction (3) then add the numerator of the fraction (1) therefore improper
  50. Algebra

    An acre of land is chosen at random from each of the three states listed in the table at the right. What is the probability that all three acres will be farmland? 1. Does the choice of an acre from one state affect the choice from the other states? 2. How
  51. AP Biology

    Okay, so in the Lab Assignment that I'm currently working on in AP Biology, there is a question that says: - What results would you expect if a dialysis bag were filled with glucose and iodine and then placed into a beaker of starch and water? Its a
  52. Biology

    Okay, so in the Lab Assignment that I'm currently working on in AP Biology, there is a question that says: - What results would you expect if a dialysis bag were filled with glucose and iodine and then placed into a beaker of starch and water? Its a
  53. percents

    how do you find the percent of how many students in the class for example there are 2000 students in a class and 20 percent of them speak french...how do i solve this problem?
  54. 8th Grade Algebra-Radicals:Answer Check

    4. 3ã11 + 4ã11 Answer: 8ã11 7. 7ã2 - 2ã8 Answer: 1ã2 ?? 8. ã48 + ã75 Answer: 9ã3 9.(3ã10) Answer: 19 + 6ã10 10. ã27/64 (Fractions) Answer 3ã3/8 ?? 11. 10ã20 - 3ã80 Answer: 10ã5 12. ã6/49 Fractions) Answer:
  55. chemistry 1B

    1-propanol (P1° = 20.9 Torr at 25 °C) and 2-propanol (P2° = 45.2 Torr at 25 °C) form ideal solutions in all proportions. Let x1 and x2 represent the mole fractions of 1-propanol and 2-propanol in a liquid mixture, respectively, and y1 and y2 represent
  56. mathamatics

    can i have a list of times tables And your question is? 1> Googal stands for how many zeros after one? 2> Who invented logarithm for fast calculation? what is the product of 9 & 6? How could I work a problem that is: I have a bacteria that replicates
  57. physics

    speedway turn, with radius of curvature R, is banked at an angle θ above the horizontal. (a) What is the optimal speed at which to take the turn if the track's surface is iced over (that is, if there is very little friction between the tires and the
  58. Physics

    A combination lock has a 1.2 cm -diameter knob that is part of the dial you turn to unlock the lock. To turn that knob, you grip it between your thumb and forefinger with a force of 0.62 N as you twist your wrist. Suppose the coefficient of static friction
  59. Physics

    A combination lock has a 1.2 cm -diameter knob that is part of the dial you turn to unlock the lock. To turn that knob, you grip it between your thumb and forefinger with a force of 0.62 N as you twist your wrist. Suppose the coefficient of static friction
  60. algebra

    please review the questions and table and check my answers. tank you tutors. table planets' orbital velocity planet orbital velocity (mi/s) mercury 29.74 venus 21.76 earth 18.5 mars 14.99 jupiter 8.12 saturn 6.02 uranus 4.23 solve. show your work. express
  61. STATS

    In a certain store, there is a .05 probability that the scanned price in the bar code scanner will not match the advertised price. The cashier scans 820 items. a) What is the expected number of mismatches and standard deviation? (Round your expected number
  62. English

    Writeacher, I really need you to check these sentences and tell me which are possible. Thank you. 1) I really hope we can start our students' email exchange next week. 2) Can you possibly write a short presentation of your school (age range of your
  63. math

    In a right triangle ABC, C = 90°, b = 380.1 inches and c = 589.1 inches. Solve for all the missing parts using the given information. (Round each answer to one decimal place for side and to two decimal places for angles.) A = ° B = ° a = __inches IM
  64. Math

    What is ... 0.23 as a fraction and percent 3/100 as a decimal and percent 32 1/2 % as a decimal and fraction 0.25 as a fraction and percent 3/5 as a decimal and percent 75% as a decimal and fraction 1/8 as a percent and decimal 1 as a percent, decimal ,and
  65. Calculus (please help I really need to check this)

    Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the width w of the rectangle. If the cross-sectional area is A, determine the dimensions of the window which minimize the perimeter.
  66. math

    the game of Razz is played by 2 people using number cards,each card containing a number between 10 and 50.These cards are placed face down.In turn,each player turns up 4cards,chooses one and turns the other 3 back down.The winner is the first player who
  67. Fibonacci Numbers: Understand one part not another

    I understand how to use a calculator to write the decimal point using the golden ratio which is 1.618034 and the conjugate is -.618034. I also know that the relationship between the decimal expansions is that everything to the right of the decimal is the
  68. L.A.Help!!!!!!

    Which sentence is a main idea of "Why Leaves Turn Color in the Fall"? A. Leaves stop making chlorophyll add summer ends. B. Leaves reflect the colors of corn, pumpkins, and cranberries in the fall. C. Photosynthesis begins in the fall. D. Longer days and
  69. Calculus (pleas help I really need to check this)

    Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the width w of the rectangle. If the cross-sectional area is A, determine the dimensions of the window which minimize the perimeter.
  70. Physics, help me please?!

    A car travels around a circular turn of radius 50 meters while maintaining a constant speed of 15m/s find the minimum value for the coefficient of friction necessary to keep the car on the road in icy conditions, the coefficient of friction drops to 0.15,
  71. Englsih

    To Make French Toast: First, take out skillet to cook and turn the stove on low. Second, you will melt the butter in the pan and stir it with a spatula. Third, beat the eggs. Fourth, lay the bread, white or wheat, on both sides in the eggs. Fifth, sit the
  72. computer

    Using pseudocode, write a program on how you turn a corner in an automobile. Note that there is a stop sign in the intersection. Determine the logical steps involved and write the pseudocode. Consider the following questions when completing your
  73. math

    Test these conjectures. Give three examples. Explain if the conjecture is correct or incorrect. 1. If a number is divisible by 4, it is always an even number._________________________________ 2. All multiples of 5 have a 5 in the ones
  74. Chemistry

    How many chlorine atoms are contained in a 1.00 g sample of iron(III) chloride, FeCl3? Use the masses to two decimal places from the chart in the front of your text. Use the format 6.02E23 for 6.02 x 1023, or 6.02E-23 for 6.02 x 10-23,use two decimal
  75. MATH

    1. Find the decimal equivalent of the mixed number.11 1/4 A~ 11.25? 2. Divide by moving the decimal point. 8.9 / 10 TO THE POWER OF 2 A~0.089? 3.A block of cheese weighing 2.6 pounds (lb) sold for $15.55. Find the cost per pound to the nearest cent.
  76. MATH

    1. Find the decimal equivalent of the mixed number.11 1/4 A~ 11.25? 2. Divide by moving the decimal point. 8.9 / 10 TO THE POWER OF 2 A~0.089? 3.A block of cheese weighing 2.6 pounds (lb) sold for $15.55. Find the cost per pound to the nearest cent.
  77. Math, URGENT!

    What is the decimal equivalent of 1,932% and how do you get the answer to the decimal equivalent?
  78. math help [lease?

    What strategies do you use to convert a fraction to a decimal and a decimal into a fraction?
  79. math

    find each missing number. 1.)19/n = 0.76 2.)n:20 = 0.55 3.)n = 1:10 (n is a decimal) 4.) n% = 1:100 5.) n% = 33:100 6.) 99% (n is a decimal) 7.) n/25 = 17:25 8.) 41:n = 0.82 9.) n/25 = 0.08 10.) 21:n = 0.21
  80. Fraction help wrong answer

    It takes Nadia 4/9 h to complete her Language Arts homework and 2/9 h to complete her mathematics homework. Which takes longer? How much longer? I did this : It takes Nadia Language Arts home work longer by 13.34 minutes longer. 4/9 x 60 min = 240/9 =
  81. Physics

    In the Daytona 500 car race in Daytona, FL, a curve in the oval track has a radius of 316 m (near the top of the curve) and is banked at 31.0 O . a) What speed would be necessary to make this turn if there was no friction on the road? b) If the coefficient
  82. Physics

    A car with fuzzy dice hanging from the rear view mirror by a single string drives along at a constant 25.0 m/s. a) If the dice have a mass of 0.030 kg, what is the angle of the string (relative to vertical)? b) What is the tension in the string? c) As the
  83. Math

    A restaurant has two fish tanks on display. One tank holds 625 liters of water while the other holds 312.5 liters. The smaller tank makes up which of the following percents of the larger tank? A) 5% B) 20% C) 50% D) 200%
  84. math

    If the markup on an oven is 200% based on cost, what is the corresponding percent markup based on selling price? Round percents to the nearest tenth of a percent. Do not enter the percent symbol in your answer.
  85. percents

    there are 1000 students. The 6th grade surveyed.12% of the students brunge lunch from home.suppose 24 6th graders do this.how many 6th graders are at the school? HELP PLEEZ!
  86. English

    Could you please check my sentences, please? Thank you, Writeacher. 1) You can't get out of it: you must confess that you have broken the vase. We were having dinner when the lights went out. 2) The teacher invited me to look up the unknown words in the
  87. English

    Can you check the meaning of these few phrasal verbs, please? Thank you In the beginning I dislike my classmates but then I came around thinking they aren't so bad. Can you drop in on me after school. I need to talk to you. My plan to go to the mountains
  88. AP Physics

    You go to kitchen to boil water. You pour 280 gram of water to a container, and put the container on a 293 W electric heater. Assume that all the heat from the heater is used to heat the water. The specific heat of water is 4.19 J/g ° C. As always, be
  89. math

    How can I add a two digit number and two three digit numbers in my head. Any tricks anyone knows in connection with short-cuts to solving different math problems( such as addition, subtraction,multiplication, division, rounding, conversions, percents) in
  90. Math

    A manufacturing company wants to minimize the cost of materials for a pop can which needs to hold 640 mL. Find the radius and height (in centimeters) of the cylindrical can with minimum surface area that holds this volume. Give your answer as a decimal
  91. Just for I.AM..RUNNING.FROM.MYSELF,

    I'm doing a poster in science and its about radon. Radon is a radioactive gas and it causes lung cancer, but i don't know what to do for the poster and it's due March 16,2012 but i have to turn it in by tomorrow so that the poster can get to the science
  92. Pre-calculus

    You start from an acorn and walk 300 yards do north. Then, you turn N 63° E and walk 260 yards. Then, you turn S 55° E and walk 240 yards. Then you walk back to the little acorn.
  93. Science

    I hope someone can help, Thank You! The wheels of a machine are identical. They have an outer circumference of 10 cm and an inner circumference of 5 cm. If the crank is rotated one quarter turn clockwise, where will the clock's hand point? More information
  94. Converting decimal(floating point) to octal/hex

    Hi everybody, Can anybody show me how to convert 0.59375(decimal) to Octal and Hexadecimal? go to wikpediaa and look up Hexadecimal and Octal It will give you an idea Hi can anyone convert 5.4 * 10 ^-79 to IBM hex floating point format?? sir how to convert
  95. Geometry

    You want to draw an enlargement of a design that is painted on a 4 in. by 5 in. You will be drawing this design on a piece of paper that is 8 1/2 in. by 11 in. What are the dimensions of the largest complete enlargement you can make? A. 1 3/5 in by 10 5/8
  96. TRIG

    In a right triangle ABC, C = 90°, b = 380.1 inches and c = 589.1 inches. Solve for all the missing parts using the given information. (Round each answer to one decimal place for side and to two decimal places for angles.) A = ° B = ° a = inches IM lOST!
  97. Physics

    Ice-hockey star Wayne Gretzky is skating at 12.7 m/s toward a defender, who in turn is skating at 5.39 m/s toward Gretzky. Gretzky’s weight is 677 N; that of the defender is 869 N. Immediately after the collision, Gretzky is moving at 2.21 m/s in his
  98. math/algebra

    Subtract: express your answer in simplest form. 2/5 - y/y-2 answers a)-3y-2/y-2 b) -3y -2/5(4-2) c) -3y-4/5(y-2) d) -3y-4/y-2 The way you have written the problem, is 2/5 minus y^3. I don't think that is what you meant. Please use grouping symbols on
  99. simplify fractions{someone help plz}

    ok how do i simplify a fraction if there is no fraction. like for ex this is one of the problems i simplify to 1/2. my numerator is a prime number between 44 and 52 who am i? see i don't get it someone help plz There is only one prime number between 44 and
  100. Math

    Why can't the slope of a line be expressed as a decimal or a fraction? The slope of a line should be expressed as a fraction. The formula is Rise over Run. Rise is how much further up u go and run is how much further across do u go. Does that answer your