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# Recent problems solved by 'solver91311'

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 Expressions-with-variables/653356: Ten more than half the sum of 4 and a number1 solutions Answer 408363 by solver91311(16877)   on 2012-09-18 16:15:08 (Show Source): You can put this solution on YOUR website! So what is your question? John My calculator said it, I believe it, that settles it
 Numbers_Word_Problems/653359: a number exceeds 521 solutions Answer 408361 by solver91311(16877)   on 2012-09-18 16:13:19 (Show Source): You can put this solution on YOUR website! So what is your question? John My calculator said it, I believe it, that settles it
 Trigonometry-basics/653321: The terminal side of an angle in standard position passes through the point . Calculate the values of the six trigonometric functions for angle . 1 solutions Answer 408360 by solver91311(16877)   on 2012-09-18 16:12:39 (Show Source): You can put this solution on YOUR website! You didn't bother to say what point, so I get to choose my own. So, The terminal side of an angle in standard position passes through the point where In that case: John My calculator said it, I believe it, that settles it
 Rectangles/653341: the length of a rectangular mailing label is 2 centimeters less than twice the width. The perimeter is 50 cenimeters. find the dimensions of the label L= W= 1 solutions Answer 408351 by solver91311(16877)   on 2012-09-18 15:47:05 (Show Source): You can put this solution on YOUR website! If a rectangle with perimeter has a length that is units longer (or shorter if ) than times the width, , Then knowing that the Perimeter is given by: , make the substitution: Then solve for For your problem: , , and . Do the arithmetic. John My calculator said it, I believe it, that settles it
 absolute-value/653342: Solve the equation: 1. 3x-4y=5 for y 1 solutions Answer 408350 by solver91311(16877)   on 2012-09-18 15:43:45 (Show Source): You can put this solution on YOUR website! Add -3x to both sides Divide both sides by -4. John My calculator said it, I believe it, that settles it
 absolute-value/653337: Solve the equation: 1. 4(n-2)-6(n+3)=-14 1 solutions Answer 408349 by solver91311(16877)   on 2012-09-18 15:42:24 (Show Source): You can put this solution on YOUR website! Distribute the 4 and the -6: Collect like terms in the LHS Finally add 26 to both sides and then divide by -2. John My calculator said it, I believe it, that settles it
 expressions/653049: can you help me with square roots1 solutions Answer 408225 by solver91311(16877)   on 2012-09-17 23:06:42 (Show Source): You can put this solution on YOUR website! That depends. Can you follow the instructions for posting questions on this site? John My calculator said it, I believe it, that settles it
 Travel_Word_Problems/652974: two cars start at the same interstate interchange and travel in the same direction at average speeds of 40 miles per hour and 55 miles per hour. How much time must elapse before the two cars are 5 miles apart?1 solutions Answer 408220 by solver91311(16877)   on 2012-09-17 22:56:41 (Show Source): You can put this solution on YOUR website! How long does it take to go 5 miles at 15 miles per hour? John My calculator said it, I believe it, that settles it
 Polynomials-and-rational-expressions/652988: Explain how to find the LCD for 8/7xy and 3/x^21 solutions Answer 408218 by solver91311(16877)   on 2012-09-17 22:50:24 (Show Source): You can put this solution on YOUR website! The LCD needs one factor of 7, two factors of x, and one factor of y. John My calculator said it, I believe it, that settles it
 Travel_Word_Problems/653044: how fast do you have to travel in order to cover 30 miles in 2.5 hours 1 solutions Answer 408215 by solver91311(16877)   on 2012-09-17 22:46:30 (Show Source): You can put this solution on YOUR website! Rate is distance divided by time. John My calculator said it, I believe it, that settles it
 Radicals/653041: parenthesis 5 to the square root of 6 parenthesis 2nd power (5√6)squared 1 solutions Answer 408214 by solver91311(16877)   on 2012-09-17 22:45:32 (Show Source): You can put this solution on YOUR website! Same thing as BTW, the proper plain text for your expression would be (5sqrt(6))^2 John My calculator said it, I believe it, that settles it
 Distributive-associative-commutative-properties/653032: The Perimeter of a baseball diamond is about 360 ft If You take 12 laps around the diamond, what is the total distance you run? I Tried 300*12+60*12 but I Believe I Was doing something wrong.1 solutions Answer 408213 by solver91311(16877)   on 2012-09-17 22:40:09 (Show Source): You can put this solution on YOUR website! Why do you think it is wrong? John My calculator said it, I believe it, that settles it
 Problems-with-consecutive-odd-even-integers/653009: The difference of the squares of two positve consecutive even integers is 12. Find the integers. Use the fact, if x represents an even integer, then x+2 represents the next consecutive even integer1 solutions Answer 408210 by solver91311(16877)   on 2012-09-17 22:35:04 (Show Source): You can put this solution on YOUR website! Solve for , then calculate John My calculator said it, I believe it, that settles it
 test/653028: A boat can travel 24 miles downstream in 2 hours. It can travel the same distance upstream in 3 hours. Find the rate, r, of the boat in still water and thr rate, c, of the current.1 solutions Answer 408207 by solver91311(16877)   on 2012-09-17 22:29:01 (Show Source): You can put this solution on YOUR website! Why are you wasting our time posting the same question three times? John My calculator said it, I believe it, that settles it
 test/653031: A boat can travel 24 miles downstream in 2 hours. It can travel the same distance upstream in 3 hours. Find the rate, r, of the boat in still water and thr rate, c, of the current.1 solutions Answer 408206 by solver91311(16877)   on 2012-09-17 22:28:19 (Show Source): You can put this solution on YOUR website! Why are you wasting our time posting the same question twice? John My calculator said it, I believe it, that settles it
 test/653023: A boat can travel 24 miles downstream in 2 hours. It can travel the same distance upstream in 3 hours. Find the rate, r, of the boat in still water and thr rate, c, of the current.1 solutions Answer 408204 by solver91311(16877)   on 2012-09-17 22:26:28 (Show Source): You can put this solution on YOUR website! If you go 24 miles in 2 hours, you are going 12 miles per hour. Since that is downstream, the rate of the boat and the rate of the current are in the same direction, and the two rates add. The other direction, 24 miles in 3 hours is 8 miles per hour, but the current subtracts from the rate of the boat. Altogether you get: Solve the 2X2 system. Use Elimination; you can do it in your head. John My calculator said it, I believe it, that settles it
 Travel_Word_Problems/653001: A locomotive travels on a straight track at a constant speed of 40 mi/h, then reverses direction and returns to its starting point, traveling at a constant speed of 60 mi/h. What is the average velocity for the round-trip? What is the average speed for the round-trip? What is the total distance traveled by the train if the total trip took 5 h? I have no idea where to even begin...1 solutions Answer 408200 by solver91311(16877)   on 2012-09-17 22:13:44 (Show Source): You can put this solution on YOUR website! Let the direction of travel for the initial leg of the trip be . Then the direction of travel for the return leg is . The vector sum of the two opposing vectors is the difference of the magnitudes in the direction of the greater magnitude, i.e. 20 mph @ . The average speed is the total distance traveled divided by the total travel time. The time for the outward leg is: hours. Where the one-way distance is The time for the return leg is: hours. The sum of these times is the total travel time: hours. The total distance travelled is , so the average speed is: mph. If the trip took 5 hours... If you go 48 mph for 5 hours, how far did you go? John My calculator said it, I believe it, that settles it
 Points-lines-and-rays/652998: A farmer fenced all but one side of a square field. If he has already used 3x meters of fence, how many meters will he need for the last side?1 solutions Answer 408189 by solver91311(16877)   on 2012-09-17 21:51:15 (Show Source): You can put this solution on YOUR website! The perimeter of a square with side measure is . The measure of three sides of such a square would be John My calculator said it, I believe it, that settles it
 Length-and-distance/652997: given that b is between a and c. if ab=x, bc=2x-3,and ac=30,find x and bc1 solutions Answer 408188 by solver91311(16877)   on 2012-09-17 21:49:36 (Show Source): You can put this solution on YOUR website! Solve for , then calculate John My calculator said it, I believe it, that settles it
 Quadratic_Equations/652996: Find all real solutions of the quadratic equation. (If there is no real solution, enter NO REAL SOLUTION.) w^2 = 7(w − 3) 1 solutions Answer 408187 by solver91311(16877)   on 2012-09-17 21:46:43 (Show Source): You can put this solution on YOUR website! Put your equation into standard form, namely Then calculate the discriminant. If , then there are no real solutions. If , there is one real solution with a multiplicity of 2, . If , then there are two distinct real zeros. Use the quadratic formula: John My calculator said it, I believe it, that settles it
 absolute-value/652985: Pleasehelp solve: 3x+2y=3 1 solutions Answer 408185 by solver91311(16877)   on 2012-09-17 21:41:14 (Show Source): You can put this solution on YOUR website! You can't "solve" a single two-variable equation. I suspect there is something other than solve that you want to do here, but I have no idea what. John My calculator said it, I believe it, that settles it
 Miscellaneous_Word_Problems/652987: A ball is thrown up at the edge of a 274 foot cliff. The ball is thrown up with an initial velocity of 107 feet per second. Its height measured in feet is given in terms of time t, measured in seconds by the equation h= -16t**2 + 107t + 274 a. How high will the ball go and how long does it takes to reach that height? feet? seconds ? b. How long does it take the ball to come back to the ground ? seconds? 1 solutions Answer 408184 by solver91311(16877)   on 2012-09-17 21:37:45 (Show Source): You can put this solution on YOUR website! a. Either use the formula for the horizontal ( in this case) coordinate of the vertex of the parabola, namely or set the first derivative equal to zero and solve for the same value to get the time that the ball reaches its maximum height. Then evaluate the function at that value to find the value of the maximum height. b. Set the function equal to 0 and then solve the quadratic equation. Discard the negative root. John My calculator said it, I believe it, that settles it
 Expressions-with-variables/652980: S=n/2(a+1)solving for a1 solutions Answer 408182 by solver91311(16877)   on 2012-09-17 21:29:17 (Show Source): You can put this solution on YOUR website! Depends. Do you mean: or Re-post, using sufficient parentheses to make it clear which parts of the RHS are in the numerator and which are in the denominator. John My calculator said it, I believe it, that settles it
 Functions/652962: input x: 1,2,4,5,6,8,9 outputy: 7,9,13,?,?,? I cant find a correct expression for this prob.1 solutions Answer 408180 by solver91311(16877)   on 2012-09-17 21:20:02 (Show Source): You can put this solution on YOUR website! The first thing to do is to see if the relationship is linear. Use the slope formula and any two pairs of the first three (x, y) ordered pairs. where and are the coordinates of the given points. Same slope, so the points are collinear, so the function is linear. Since it is a linear function the function can be written in the form Substitute values: Since we already know the slope: So Now all you need to do is substitute the values of x for which you have no y value and do the arithmetic. John My calculator said it, I believe it, that settles it
 Numeric_Fractions/652942: I NEED HELP SOLVING 3 OVER 4X - 3 OVER 4 = 0 1 solutions Answer 408178 by solver91311(16877)   on 2012-09-17 21:06:25 (Show Source): You can put this solution on YOUR website! I need help in solving the problem of students being rude and annoying by typing in all caps. Any suggestions? John My calculator said it, I believe it, that settles it
 Numbers_Word_Problems/652961: The smaller of two consecutive even intergers is five more than one half of the greater. Find the intergers. I figured out in my head that the answers are 12 & 14 but i cannot figure out the proper way to set up the problem that makes sense. My attempt at the setup of this problem does not work out: x=x+2/2+5 1 solutions Answer 408176 by solver91311(16877)   on 2012-09-17 21:00:56 (Show Source): You can put this solution on YOUR website! I can show you how to find two consecutive even integers that fit your requirements. But I have no idea what an interger is. Let represent the first of two consecutive even integers. Then must represent the other one. You set up the equation properly. Add -5 to both sides Multiply both sides by 2 Add -x + 10 to both sides John My calculator said it, I believe it, that settles it
 Geometry_proofs/652950: Please help me with this proof Given: <1 and<2 are supplementary, and <3 and<4 are supplementary <2 is congruent to <3 Prove: <1 is congruent to <4 There are seven steps to this problem !1 solutions Answer 408174 by solver91311(16877)   on 2012-09-17 20:53:05 (Show Source): You can put this solution on YOUR website! The sum of the measures of 1 and 2 is 180 by definition of supplementary The sum of the measures of 3 and 4 is 180 by definition of supplementary The measure of 2 equals the measure of 3 by definition of congruence The sum of 1 and 3 is 180 by substitution equality 1 plus 3 equals 3 plus 4 by transitive equality 1 equals 4 by subtraction equality 1 congruent to 4 by definition of congruence John My calculator said it, I believe it, that settles it
 Linear_Equations_And_Systems_Word_Problems/652946: Par on a golf course is 72. If a golfer shot rounds of 76, 68, and 70 in a tournament, what will she need to shoot on the final round to average par?1 solutions Answer 408170 by solver91311(16877)   on 2012-09-17 20:43:51 (Show Source): You can put this solution on YOUR website! If she wants to average S in R rounds, then the sum of her scores has to be S times R. John My calculator said it, I believe it, that settles it
 Numbers_Word_Problems/652907: 2925 is not divisble by 2 what else is it not divisble by?1 solutions Answer 408168 by solver91311(16877)   on 2012-09-17 20:38:13 (Show Source): You can put this solution on YOUR website! The prime factorization of 2925 is 3 X 3 X 5 X 5 X 13. Any prime number not in this list is NOT a divisor of 2925. John My calculator said it, I believe it, that settles it
 test/652901: whats the independent and dependent variable ' ? The size of a balloon versus the amount of helium inside it .1 solutions Answer 408157 by solver91311(16877)   on 2012-09-17 20:02:04 (Show Source): You can put this solution on YOUR website! The way you worded the question it could be either way. If balloon size is a function of amount of helium, balloon size is dependent on the independent amount of helium, whereas if the amount of helium is a function of balloon size, then the amount of helium is dependent on the independent balloon size. If you already have a graph, the one on the vertical axis is dependent on the variable on the horizontal axis. John My calculator said it, I believe it, that settles it
 Points-lines-and-rays/652785: Find the coordinates of the other endpoint of a segment with the given endpoint and midpoint M. 7. C(3, 0) 8. D(5, 2) M(3, 4) M(7, 6) 9. E(o4, 2) M(o3, o2)1 solutions Answer 408135 by solver91311(16877)   on 2012-09-17 18:28:13 (Show Source): You can put this solution on YOUR website! 1. Ordinarily you would only get help with one of these since there is a one question per post limit, but... 2. You get help with none because your data is jumbled beyond logical recognition. 3. What are you trying to represent with the "o4" notation? Re-post, 1 problem only. Meanwhile, here are the midpoint formulas: and John My calculator said it, I believe it, that settles it