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# Recent problems solved by 'solver91311'

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 Equations/640610: My book says: write an equation in standard form Ax + By=C of the line that satisfies the given conditions. Use integer values for A,b,c. Then the problem is: m=4/5, passes through(2,3) Here's what i did but i didn't and can't solve it to find the right answer. y-3=4/5(x-2) y-3=4/5x-8/5 that's all i really got1 solutions Answer 403331 by solver91311(16872)   on 2012-08-23 19:46:43 (Show Source): You can put this solution on YOUR website! You are right where you want to be. Multiply both sides of your equation by 5 Add to both sides Add to both sides Done. John My calculator said it, I believe it, that settles it
 Unit_Conversion_Word_Problems/640603: a car travels 250 miles in 6 hours what is the unit rate of speed for the car 1 solutions Answer 403330 by solver91311(16872)   on 2012-08-23 19:35:11 (Show Source): You can put this solution on YOUR website! Divide 250 by 6 and express the answer in miles per hour. Round to the nearest whole number. John My calculator said it, I believe it, that settles it
 absolute-value/640604: -|-7|is >than |6|1 solutions Answer 403329 by solver91311(16872)   on 2012-08-23 19:33:46 (Show Source): You can put this solution on YOUR website! And your question was? John My calculator said it, I believe it, that settles it
 Numbers_Word_Problems/640600: Having finished fencing the perimeter of a triangular piece of land, Tony observed that the second side was just 10 feet short of being twice as long as the first side, and the third side was 50 feet longer than the first side. If he used 684 feet of fencing, what are the lengths of the three sides? (Perimeter= side 1 + side 2 + side 3) 1 solutions Answer 403328 by solver91311(16872)   on 2012-08-23 19:31:56 (Show Source): You can put this solution on YOUR website! Let be the measure of the first side. Then is the measure of the second side, and is the measure of the third side. Solve for , then calculate , and . John My calculator said it, I believe it, that settles it
 test/640598: Can 1 be an additive identity? and why? pleaaaaase!!!:)1 solutions Answer 403327 by solver91311(16872)   on 2012-08-23 19:26:27 (Show Source): You can put this solution on YOUR website! An additive identity, , is a number such that . That means if you can find any number where , then 1 is NOT an additive identity. Let , then . therefore...what? By the way, how much importance should I place on the fact that you spelled "please" with 5 'a's? Does that make your question more important or higher priority than someone who only uses 2 or 3 'a's or, Mithra forbid!, spells it properly? Should your question be overlooked by someone who uses even more vowels? John My calculator said it, I believe it, that settles it
 test/640576: G(x)= 2xsquare-5 A solve g(x)=9 B calculate g(-3) Help please 1 solutions Answer 403323 by solver91311(16872)   on 2012-08-23 19:16:55 (Show Source): You can put this solution on YOUR website! Technically speaking, what you ask cannot be done with the information given. That is becsuse and are not the same thing. But just in case you were only being sloppy: Part A: Set . That is: , then solve for Part B: Substitute -3 for in and do the arithmetic. John My calculator said it, I believe it, that settles it
 Inverses/640586: What is the inverse of y=4-(3/2)x1 solutions Answer 403322 by solver91311(16872)   on 2012-08-23 19:11:56 (Show Source): You can put this solution on YOUR website! Add -4 to both sides Multiply both sides by Swap the variables and distribute the fractional coefficient. John My calculator said it, I believe it, that settles it
 Reduction-of-unit-multipliers/640587: 6 ounces per second converted to gallons per hour. How would I work that, what would be the answer?1 solutions Answer 403321 by solver91311(16872)   on 2012-08-23 19:10:03 (Show Source): You can put this solution on YOUR website! Divide 6 by the number of ounces in a gallon, then multiply the result by the number of seconds in one hour. You tell me the answer. John My calculator said it, I believe it, that settles it
 test/640594: Simpilfied way of learning inequalities1 solutions Answer 403320 by solver91311(16872)   on 2012-08-23 19:08:03 (Show Source): You can put this solution on YOUR website! No such thing. John My calculator said it, I believe it, that settles it
 Money_Word_Problems/640593: Samantha smith went into a store and spent half her money and then spent $20 more. Samantha then went into a second store and spent half her remaining money and then spent$20 more. After spending money in the second store, Samantha had no money left. How much money did she have when she went into the first store?1 solutions Answer 403319 by solver91311(16872)   on 2012-08-23 19:06:20 (Show Source): You can put this solution on YOUR website! Since she didn't have anything left after the last $20, and just before she spent that last$20 she spent half of what she had, that last $20 must have also been half of what she had when she walked into the second store. So, when she entered the second store she had$40. Then just before she spent the extra $20 at the first store she had$60, which was half of what she had at the start. \$120. John My calculator said it, I believe it, that settles it
 Travel_Word_Problems/640589: maria drove 111 mi in 3 h. about how far could she drive in 5 hr1 solutions Answer 403318 by solver91311(16872)   on 2012-08-23 18:59:26 (Show Source): You can put this solution on YOUR website! Divide 111 by 3. Multiply that answer by 5. John My calculator said it, I believe it, that settles it
 Geometry_Word_Problems/640591: Q bisects line PR, PQ=3Y, and PR=42. Find y and QR. Please help me with this problem.1 solutions Answer 403316 by solver91311(16872)   on 2012-08-23 18:58:21 (Show Source): You can put this solution on YOUR website! If PR is 42, then both PQ and QR have to be 21 by definition of midpoint. To find , solve John My calculator said it, I believe it, that settles it
 Average/640590: David has scores of 79, 96, 63, 54 on his algebra tests. Use an inequality to find the minimum score he can make on the final exam to pass the course with an average of 70 or higher, given that the final counts as 3 tests.1 solutions Answer 403315 by solver91311(16872)   on 2012-08-23 18:55:55 (Show Source): You can put this solution on YOUR website! Hint: If he needs to get a 70 average on 7 tests then he needs to score a total of 490 points for all of his tests. So 3 times what he gets on the last test plus the sum of the scores of the tests he has already taken has to be greater than or equal to 490. John My calculator said it, I believe it, that settles it
 Quadratic_Equations/640585: Every hour on the hour, a train leaves New York for Philadelphia while every hour on the hour, a train leaves Philadelphia for New York. The trip between the two cities takes exactly two hours. When a train goes from New York to Philadelphia, how many trains going in the opposite direction does it meet?1 solutions Answer 403312 by solver91311(16872)   on 2012-08-23 18:52:50 (Show Source): You can put this solution on YOUR website! With respect to the 10:00 AM out of Philly, if you count the 8:00 out of NY that is just arriving as the P10 is leaving, and if you count the N12 that is leaving NY just as the P10 is arriving, then there are 5 meetings, namely the N8 in Philly, the N9 30 minutes later, the N10 half-way, the N11 30 minutes after that, and the N12 when the P10 arrives in NY. If you don't count the endpoints, 3 meetings. John My calculator said it, I believe it, that settles it
 real-numbers/640581: Write in standard form y=3/4x+101 solutions Answer 403309 by solver91311(16872)   on 2012-08-23 18:46:05 (Show Source): You can put this solution on YOUR website! Add to both sides. Some authors define Standard form as where the coefficients are integers. If you don't have the integer restriction, then you are done. If you do have the integer restriction, multiply both sides by 4 (or -4 if you would rather get rid of that pesky minus sign on the lead coefficient.) John My calculator said it, I believe it, that settles it
 Equations/640583: Convert the formula C=5/9(F-32) Solve for F1 solutions Answer 403306 by solver91311(16872)   on 2012-08-23 18:41:30 (Show Source): You can put this solution on YOUR website! Multiply both sides by Add 32 to both sides. John My calculator said it, I believe it, that settles it
 Numbers_Word_Problems/640544: i am a fraction my numerator is ann odd single digit my denominator is prime and is greater than my numeraor my denominator is 5 less twice as large as my numeraor what fraction am i1 solutions Answer 403305 by solver91311(16872)   on 2012-08-23 18:40:16 (Show Source): You can put this solution on YOUR website! If the numerator is 1, then 2 times 1 is 2. 2 minus 5 is -3 for the denominator which is not greater than 1. Not valid. If the numerator is 3, then 2 times 3 is 6. 6 minus 5 is 1 which is not greater than 3 and is not prime. Not valid. If the numerator is 5, then 2 times 5 is 10. 10 minus 5 is 5 which is not greater than 5. Not valid. If the numerator is 7, then 2 times 7 is 14. 14 minus 5 is 9 which is not prime. Not valid. If the numerator is 9, then 2 times 9 is 18. 18 minus 5 is 13. 13 is greater than 9 and is prime. Valid. Fraction is: John My calculator said it, I believe it, that settles it
 Travel_Word_Problems/640567: If you drive an average of 46 miles per hour, how long will it take you to travel 138 miles? 1 solutions Answer 403300 by solver91311(16872)   on 2012-08-23 18:25:49 (Show Source): You can put this solution on YOUR website! Divide 138 by 46. The answer will be in hours. John My calculator said it, I believe it, that settles it
 test/640560: I need help in my alg2 hw : Given f(x)=-2/3x +3 A.calculate f(3) B. solve f(x) =-5 Help im not good with fractions1 solutions Answer 403298 by solver91311(16872)   on 2012-08-23 18:24:28 (Show Source): You can put this solution on YOUR website! Part A. Substitute 3 in place of and do the arithmetic. Part B. Substitute -5 for and solve the resulting single variable equation. John My calculator said it, I believe it, that settles it
 Equations/640561: y=-2x+5 1 solutions Answer 403296 by solver91311(16872)   on 2012-08-23 18:22:44 (Show Source): You can put this solution on YOUR website! Cute little 2-variable linear equation. What was your question about it? What have you done so far? John My calculator said it, I believe it, that settles it
 Miscellaneous_Word_Problems/640556: The height of a rocket in meters t seconds after it is launched is approximated by the polynomial 0.5 at2 + vt + h where a is always -9.8, v is the initial velocity, and h is the initial height. Marie and Bob launched their rockets at the same time from a platform 5 meters above the ground. Marie launched the 4400i and Bob launched the Q99. How much higher was Marie's rocket after 2 seconds? The Velocity of Q99 is 90 and the Velocity of 4400i is 125.1 solutions Answer 403293 by solver91311(16872)   on 2012-08-23 18:21:13 (Show Source): You can put this solution on YOUR website! Evaluate John My calculator said it, I believe it, that settles it
 Geometry_Word_Problems/640553: carlos takes steps that are 1 yard long how many steps would it take him to cross a lawn taht is 216 feet?1 solutions Answer 403286 by solver91311(16872)   on 2012-08-23 18:15:28 (Show Source): You can put this solution on YOUR website! Divide 216 by 3 John My calculator said it, I believe it, that settles it
 Inequalities/640482: what is the sum of three consecutive even intergers is less than or equal to 42.Find the largest set of these numbers1 solutions Answer 403215 by solver91311(16872)   on 2012-08-23 16:16:08 (Show Source): You can put this solution on YOUR website! Sorry, don't know what an "interger" is. But if you meant 3 consecutive integers, then: Solve for , then calculate and John My calculator said it, I believe it, that settles it
 Geometry_proofs/640484: 1. name two different ways to continue each pattern ~a,b,c....z ~a,z,b... 2.seven people meet and shake hands with one another ~using inductive reasoning write a formula for the number of handshakes if the number of people is n. 3.the fibonacci sequqnce consists of the pattern 1,1,2,3,5,8,13... ~what is the ninth term in the pattern? ~using a calculator look at the succesive ratios of one term to the next.make a conjecture. ~list the first eight terms of the sequence formed by finding the differences of succesive terms in the fibonacci sequence.1 solutions Answer 403209 by solver91311(16872)   on 2012-08-23 16:11:52 (Show Source): You can put this solution on YOUR website! 9th term of Fibbonacci: 8th: 8 + 13 = 21 9th: 13 + 21 = 34 John My calculator said it, I believe it, that settles it
 Angles/640458: what is the measure of an angle supplement is less then 44 then the measure of the angle 1 solutions Answer 403206 by solver91311(16872)   on 2012-08-23 16:08:27 (Show Source): You can put this solution on YOUR website! It is a mathematical relationship between the measure of an angle and that angle's supplement. John My calculator said it, I believe it, that settles it
 Linear-equations/640464: Find the general form of the equation of the line that passes through the given point and has an indicated slope. Point: (6,-1) Slope: m is undefined (slope is undefined) 1 solutions Answer 403204 by solver91311(16872)   on 2012-08-23 16:05:32 (Show Source): You can put this solution on YOUR website! Since the slope is undefined, you have a vertical line. Therefore all points on the line have the same -coordinate. It is sufficient to describe the line by setting equal to the -coordinate of the point through which the line passes. John My calculator said it, I believe it, that settles it
 Linear-equations/640462: Find the slope intercept form of the equation of the line that passes through these points: (-8,1) (-8,7)1 solutions Answer 403203 by solver91311(16872)   on 2012-08-23 16:01:53 (Show Source): You can put this solution on YOUR website! Can't be done. Since the -coordinates of the two points are equal, the denominator of the slope formula will be zero. Hence the slope is undefined and the slope-intercept form is not possible. Whenever you have two points with equal -coordinates, just set equal to the value of that -coordinate for the equation of your vertical line. John My calculator said it, I believe it, that settles it
 Inequalities/640468: I am trying to find two things for the problem 6/x+3-5/x-2= -20/x2+x-6 a) the restriction b) solving for X My question is when finding the restriction for x2+x-6 do I use the x2?1 solutions Answer 403202 by solver91311(16872)   on 2012-08-23 15:57:11 (Show Source): You can put this solution on YOUR website! You need to set each of the three denominators equal to zero and solve the resulting equations. Every root determined thereby is a value excluded from the domain. So, yes, you must use the because it is part of Set . Now solve the quadratic. Hint: It factors. John My calculator said it, I believe it, that settles it
 Coordinate-system/640472: write the equation of line passing through (-2,4) that is parallel to the line y=1/2x-21 solutions Answer 403201 by solver91311(16872)   on 2012-08-23 15:52:53 (Show Source): You can put this solution on YOUR website! Please note that you cannot write "the" equation of any line. You can only write "an" equation of a line. In the first place, you could just substitute the values in the point-slope form and have an equation of the desired line, or you could solve for to put it into slope-intercept form, or you could rearrange it into standard form, namely . Furthermore, for a given , , and , where describes a set of equations with an infinite number of elements, each of which graphs to the same line in . First determine the slope of the graph represented by the given equation. This equation is in slope-intercept form, so the slope is equal to the coefficient on . Next, determine the slope of the desired line using: Use the point-slope form of an equation representing a straight line graph. where are the coordinates of the given point and is the determined slope. John My calculator said it, I believe it, that settles it
 real-numbers/640465: show that each number is rational by expressing it as a ratio of two integers. 1). -2.6 2). 5 2/31 solutions Answer 403199 by solver91311(16872)   on 2012-08-23 15:43:41 (Show Source): You can put this solution on YOUR website! Move the decimal point to the right until you have gone past all of the significant digits, counting the number of places you moved the point. The number without a decimal point is the integer numerator. The denominator is 1 followed by a number of zeros equal to the number of places you moved the decimal point in order to make your numerator an integer. John My calculator said it, I believe it, that settles it
 Rate-of-work-word-problems/640439: Joe can do a certain job in 21 minutes. Bob can do the same job in 28 minutes. How long will it take them to complete the job if they work together? 1 solutions Answer 403183 by solver91311(16872)   on 2012-08-23 13:50:16 (Show Source): You can put this solution on YOUR website! If A can do a job in x time periods, then A can do of the job in 1 time period. Likewise, if B can do the same job in y time periods, then B can do of the job in 1 time period. So, working together, they can do of the job in 1 time period. Therefore, they can do the whole job in: time periods. John My calculator said it, I believe it, that settles it