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 Rectangles/563805: the width of the rectangle shown is 18 inches.the length is 4 feet.what is the area of the rectangle in square feet? 1 solutions Answer 365057 by Earlsdon(6287)   on 2012-01-27 21:34:39 (Show Source): You can put this solution on YOUR website!Convert 18 inches to feet by dividing it by 12. ft. Now multiply 1.5 ft by 4 ft to get the area. sq.ft.
 Money_Word_Problems/563809: how much would 20% of \$400 dollars be?1 solutions Answer 365056 by Earlsdon(6287)   on 2012-01-27 21:25:16 (Show Source): You can put this solution on YOUR website!20% of \$400.00 = 0.2(400) = \$80.00
 Quadratic_Equations/563740: f(x)=25x^2+10x+1 type an ordered pair I got 1 for y I got -1/5 for x The answer isn't an ordered pair though. Could someone please help me out. Thank You1 solutions Answer 365055 by Earlsdon(6287)   on 2012-01-27 21:23:23 (Show Source): You can put this solution on YOUR website! Rewrite this as: To get y = 1 as you did, you must have let x = 0, why? because: So the ordered pair is: (0, 1) And if you solved this quadratic equation, you would get: Set y = 0. Factor the left side. so... which is a double solution. So when , , the ordered pair would be: (,) But note that there is an infinite number of ordered pairs that satisfy this equation.
 Conjunction/563420: Hi there. Could you help me with this probability question please.... Each individual letter of the word TENNESSEE is placed on a piece of paper and all 9 pieces of paper are placed in a hat. If one letter is selected at random from the hat, determine the probability that the letter V is not selected. Thank you1 solutions Answer 364871 by Earlsdon(6287)   on 2012-01-26 21:10:08 (Show Source): You can put this solution on YOUR website!Since there are no V's in the hat to begin with, the probability of not selecting a V is 100%.
 Polygons/560370: The sum of a regular polygon's angle measures is 1440 degrees. What is the measure of one of the angles of the regular polygon?1 solutions Answer 363862 by Earlsdon(6287)   on 2012-01-21 15:45:31 (Show Source): You can put this solution on YOUR website!The sum (S) of the interior angles of a polygon of n sides is given by: and S is given as 1440 so... Divide both sides by 180. Add 2 to both sides. The regular polygon has 10 sides. An interior angle (A) of a regular polygon of n sides is given by: But and n = 10: degrees.
 Divisibility_and_Prime_Numbers/560364: A square has area 18225 square feet. What is the perimeter of the square. Could you please how me a step by step how to complete this problem1 solutions Answer 363860 by Earlsdon(6287)   on 2012-01-21 15:25:21 (Show Source): You can put this solution on YOUR website!If the area of a square is 18225,the length of one side (s) is: The perimeter p is 4(s), so...
 Average/560278: how do u solve a question that state ; a student has scores of 88, 92, and 86 on first 3 tests. whats score must he get on the forth so her average is 90 1 solutions Answer 363826 by Earlsdon(6287)   on 2012-01-21 10:39:37 (Show Source): You can put this solution on YOUR website!Let the score on the fourth(sp) test be x, then: Add the integers and multiply both sides by 4. Subtract 266 from both sides.
 expressions/559664: please help me solve this equation -8 + 5 (g + 2) + -21 solutions Answer 363497 by Earlsdon(6287)   on 2012-01-19 17:23:54 (Show Source): You can put this solution on YOUR website!First, this is not an equation, it's an expression and you can't "solve" an expression. Did you want to simplify this expression? -8+5(g+2)+(-2) First, apply the distributive property to the middle term. -8+5g+10+(-2) Now combine like-terms. -8+10-2+5g simplify. 0+5g The answer is 5g.
 Graphs/559671: write a rule for linear functions with graphs containing the foollowing pairs of points. (-6,4) and (3,-8)1 solutions Answer 363495 by Earlsdon(6287)   on 2012-01-19 17:16:58 (Show Source): You can put this solution on YOUR website!You could write the rule in the form of a "slope-intercept" linear equation: by finding the slope; Use the x- and y-coordinates of the two given points (-6, 4) and (3, -8) as the inputs. so you have: To find b, substitute the x- and y-coordintes from either one of the given points. Say (3, -8). Add 4 to both sides. now you write the finished equation (rule):
 Complex_Numbers/559672: Subtract: (10 - 2i) - (4 - 3i)1 solutions Answer 363491 by Earlsdon(6287)   on 2012-01-19 17:05:07 (Show Source):
 Surface-area/559493: The perimeter of a square is 1 foot, how many square inches cover it's area?1 solutions Answer 363440 by Earlsdon(6287)   on 2012-01-19 11:25:36 (Show Source): You can put this solution on YOUR website!1 square foot = (12")*(12")square inches = 144 square inches. ---------------------------------------------------------- The above answer is not correct. I was thinking that the square was 1 foot on a side, but if the perimeter is 1 foot, then the side must measure one fourth of that, or 3 inches. The area of a 3-inch square would be 3" X 3" = 9 square inches. My apologies for the mistake.
 Square-cubic-other-roots/559492: √63 + √7 + √64 = ? The correct answer is 4√7 + 8, but I can't figure out how to get it. Thanks1 solutions Answer 363438 by Earlsdon(6287)   on 2012-01-19 11:21:01 (Show Source): You can put this solution on YOUR website!Simplify: = or so... = or
 Age_Word_Problems/558743: A boy is 26 years older than his father. in 3 years time, his age would be a third of the father's age. Find the boy's present age.1 solutions Answer 363154 by Earlsdon(6287)   on 2012-01-17 21:36:45 (Show Source): You can put this solution on YOUR website!I don't quite understand how a boy can be 26 years older than his father? Did you mean to write: A boy is 26 years younger than his father? Let B = the boy's present age and F = the father's present age: 1) 2) Substitute 2a) Multiply through by 3 to clear the fraction. 2b) Simplify. 2c) 2d) 2e) and = The boy is 10 years old and the father is 36 years old.
 Rational-functions/558732: Shelly throws her keys up into the air, releasing them from a height of 4 ft. above the ground with an initial velocity of 32 ft/sec. a. Write and equation representing the height of the keys in terms of time? Above on the WS it gives two equations for velocity both equaling h-height. This is why i am confused.1 solutions Answer 363147 by Earlsdon(6287)   on 2012-01-17 21:21:25 (Show Source): You can put this solution on YOUR website!Start with the function for the height, as a function of time, (h(t), of an object propelled upwards from an initial height of with an initial velocity of . where: g (acceleration due to gravity) = 32ft/sec.squared. Substitute: and . Note that the negative comes from the fact that gravity is acting downward.
 Mixture_Word_Problems/558464: Sara is mixing together a fruit punch for a party. She's made 6 gallons of punch with a mixture of 50% juice. Her mother tells her to change it to a mixture of 60% juice. How much fruit juice should be added to make the mixture 60% fruit juice (round to the nearest hundredth)? A)0.4 gallons B)0.6 gallons C)1.5 gallons D)2.1 gallons1 solutions Answer 363068 by Earlsdon(6287)   on 2012-01-17 15:43:31 (Show Source): You can put this solution on YOUR website!Let x = the required number of gallons of pure juce (100% juice) to be added to the 6 gallons of 50% juice mixture. 0.5(6)+x = 0.6(x+6) Simplify. 3+x = 0.6x+3.6 Subtract 0.6x from both sides. 3+0.4x = 3.6 Subtract 3 from both sides. 0.4x = 0.6 Finally, divide both sides by 0.4 x = 1.5 gallons.
 Triangles/558466: A triangle contains a 75 angle. Is the triangle equiangular? Explain your answer. 1 solutions Answer 363067 by Earlsdon(6287)   on 2012-01-17 15:34:28 (Show Source): You can put this solution on YOUR website!No, it isn't! If it were equiangular, it would have three 60-degree angles.
 Quadratic_Equations/558158: susan drops her camera in the river from a bridge that is 400 feet high. How long is it before she hears the splash?1 solutions Answer 362968 by Earlsdon(6287)   on 2012-01-16 21:56:14 (Show Source): You can put this solution on YOUR website! Initial velocity, and initial height, ft. When the camera hits the water, h = 0, so... Divide by 16. Take the square root. seconds, neglecting the time it takes for the sound of the splash to travel the 400 feet to Susan's ears.
 Travel_Word_Problems/558168: a bullet train can travel very fast if a bullet train can go 150 miles in 90 minutes, what is the speed of the train in miles per hour1 solutions Answer 362966 by Earlsdon(6287)   on 2012-01-16 21:43:40 (Show Source): You can put this solution on YOUR website!90 minutes = 1.5 hours. 150 miles/1.5 hours = 100mph.
 Mixture_Word_Problems/558207: how many 14 gallon containers can i fill with 405 gallons of water?1 solutions Answer 362962 by Earlsdon(6287)   on 2012-01-16 21:35:12 (Show Source): You can put this solution on YOUR website! You could "fill" 28 14-gallon containers and you would have almost 1 gallon (0.92857) left over.
 Travel_Word_Problems/558214: how fast do i have to go if i need to bike 95 miles in 15 hours?1 solutions Answer 362960 by Earlsdon(6287)   on 2012-01-16 21:31:24 (Show Source): You can put this solution on YOUR website! mph.
 Percentage-and-ratio-word-problems/558217: Hello again: I was very pleased with your previous answer to a word problem you sent to me. This one is a little different but would like to also have a format to work future problems of the same. this is the problem: Larry Mitchell invested part of his 40,000 advance at 4% annual simple interest and the rest 3% annual simple interest. If both account was 1,330 Find the amount invested at each rate1 solutions Answer 362958 by Earlsdon(6287)   on 2012-01-16 21:28:30 (Show Source): You can put this solution on YOUR website!Let x = the amount invested at 4% then the rest (40,000-x) is the amount invested at 3%. The earnings on these two amounts is given as 1,330. This situation can be expressed by the following equation, after converting the percentages to their decimal equivalents: 0.04x+0.03(40,000-x) = 1,330 Simplify. 0.04x+1200-0.03x = 1,330 0.01x+1200 = 1,330 Subtract 1200 from both sides. 0.01x = 130 Divide both sides by 0.01 x = 13000 and 40,000-x = 27,000 Larry Mitchell invested 13,000 at 4% and 27,000 at 3%.
 Polynomials-and-rational-expressions/557747: No matter how I work this I feel as though I am getting it wrong... Solve 8/x+8 = 7/x-21 solutions Answer 362742 by Earlsdon(6287)   on 2012-01-15 22:38:08 (Show Source): You can put this solution on YOUR website!Solve for x: Cross-multiply. Simplify. Subtract 7x from both sides. Add 16 to both sides.