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# Recent problems solved by 'rfer'

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 Polynomials-and-rational-expressions/432205: Please solve Solve: sqrt(8) + sqrt(18) 1 solutions Answer 299745 by rfer(12662)   on 2011-04-06 18:49:32 (Show Source): You can put this solution on YOUR website!2.83+4.24=7.07
 Proportions/432201: 20:60 as x: 501 solutions Answer 299744 by rfer(12662)   on 2011-04-06 18:48:16 (Show Source): You can put this solution on YOUR website!60x=1000 x=16.67
 Equations/431724: THE SOLUTION OF K+3(K-2)=34 1 solutions Answer 299529 by rfer(12662)   on 2011-04-05 20:46:08 (Show Source): You can put this solution on YOUR website!k+3k-6=34 4k=40 k=10
 Evaluation_Word_Problems/431729: WHEN TWICE A NUMBE R IS DECREASED BY 4, THE RESULT IS 236. WHAT IS THE NUMBER? 1 solutions Answer 299525 by rfer(12662)   on 2011-04-05 20:44:58 (Show Source): You can put this solution on YOUR website!2x-4=236 2x=240 x=120
 test/431735: Sandy can get 35 miles to the gallon in her new car. How many gallons of gas will it take her to drive 525 miles to visit her sister1 solutions Answer 299521 by rfer(12662)   on 2011-04-05 20:42:30 (Show Source): You can put this solution on YOUR website!525/35=15 gal
 Systems-of-equations/431680: what is y=5x+8 on a coordinate plane graph1 solutions Answer 299520 by rfer(12662)   on 2011-04-05 20:41:29 (Show Source): You can put this solution on YOUR website!first the y int=8 (0,8) second plot from y int one right and 5 up (1,13)
 Square-cubic-other-roots/431737: write the expression in simplest radical form square root of 9a^101 solutions Answer 299515 by rfer(12662)   on 2011-04-05 20:38:11 (Show Source): You can put this solution on YOUR website!3a^5
 Polynomials-and-rational-expressions/431650: Simplify 13 over 104 1 solutions Answer 299501 by rfer(12662)   on 2011-04-05 20:07:51 (Show Source): You can put this solution on YOUR website!13/104=1/8
 Expressions-with-variables/431686: How would I write an equation to show that 16x-8 and 14x-2 are the same, and how would i solve for x? 1 solutions Answer 299498 by rfer(12662)   on 2011-04-05 20:04:51 (Show Source): You can put this solution on YOUR website!16x-8=14x-2 2x=6 x=3
 Expressions-with-variables/431710: 5/6*18/251 solutions Answer 299496 by rfer(12662)   on 2011-04-05 20:01:33 (Show Source): You can put this solution on YOUR website!90/150=3/5
 Numeric_Fractions/431708: what is the answer to the fraction 23/5? help1 solutions Answer 299495 by rfer(12662)   on 2011-04-05 20:00:31 (Show Source): You can put this solution on YOUR website!23/5=4 3/5
 Finance/431707: How much is 25% off of \$123.50 1 solutions Answer 299494 by rfer(12662)   on 2011-04-05 19:59:41 (Show Source): You can put this solution on YOUR website!of means multiply but 75% is what you are looking for. 123.50*0.75=\$92.63
 Angles/431705: Please help me to figure out how to get this answer. What is the complement of an angle of 29.57 degrees.1 solutions Answer 299493 by rfer(12662)   on 2011-04-05 19:57:43 (Show Source): You can put this solution on YOUR website!x=90-29.57 x=60.43 degrees
 Conjunction/431684: which equation represents the set of all points equidistant from y=-3 and y=5? a. y=2 b. y=1 c. x=1 d. x= 21 solutions Answer 299492 by rfer(12662)   on 2011-04-05 19:56:24 (Show Source): You can put this solution on YOUR website!B) y=1
 Quadratic_Equations/431681: x^2-10x+25 name how many roots and what kind1 solutions Answer 299491 by rfer(12662)   on 2011-04-05 19:55:03 (Show Source): You can put this solution on YOUR website!It opens up with the vertex at (5,0) no zeros (x-5)(x-5)factored
 Geometry_Word_Problems/431658: If jessica colored 3 out of 7 triangles blue and there are 63 triangles -how many triangles are blue? I had 9 as my answer but my teacher said the answer is 27??1 solutions Answer 299490 by rfer(12662)   on 2011-04-05 19:50:58 (Show Source): You can put this solution on YOUR website!3/7 x/63 63/7=9 9*3=27 It looks like you missed the last part of the problem. Good luck.
 Proportions/431699: find the value of x in each proportion 12:x=x:75 1 solutions Answer 299489 by rfer(12662)   on 2011-04-05 19:45:36 (Show Source): You can put this solution on YOUR website!x^2=12*75 x^2=900 x=30
 Volume/431466: what does it mean to say that an object has a volume of 6 cubic inches?1 solutions Answer 299452 by rfer(12662)   on 2011-04-05 15:04:53 (Show Source): You can put this solution on YOUR website!A container will hold 6 cu in of something.
 Linear-equations/431473: Write the equation and graph the line that passes through the given point and has the slope indicated. (problem #34) (3,-1) with slope 1 1 solutions Answer 299451 by rfer(12662)   on 2011-04-05 15:03:33 (Show Source): You can put this solution on YOUR website!y=mx+b -1=1*3+b b=-4 --------------- y=x-4
 Linear-equations/431470: Hi, I do not know how to enter the following problems in order to solve and graph. write the equation and sketch the graph for each line with the given slope and y-intercept (problem #28) Slope 4 and y-intercept 2 1 solutions Answer 299448 by rfer(12662)   on 2011-04-05 15:01:39 (Show Source): You can put this solution on YOUR website!y=4x+2
 Expressions-with-variables/431477: Use the associative property of multiplication to write an equivalent expression. 9(ab) 1 solutions Answer 299447 by rfer(12662)   on 2011-04-05 14:59:59 (Show Source): You can put this solution on YOUR website!9ab
 Expressions-with-variables/431478: Use the distributive property to multiply. 4(a + b) 1 solutions Answer 299445 by rfer(12662)   on 2011-04-05 14:58:33 (Show Source): You can put this solution on YOUR website!4a+4b
 Linear-equations/431517: 4=-2x+84x-4 1 solutions Answer 299444 by rfer(12662)   on 2011-04-05 14:57:41 (Show Source): You can put this solution on YOUR website!82x=8 x=0.0976
 Expressions-with-variables/431480: Classify the number as prime, composite, or neither. 2 1 solutions Answer 299443 by rfer(12662)   on 2011-04-05 14:56:21 (Show Source): You can put this solution on YOUR website!2=prime
 Equations/431498: Fill in the blank. If the population of state A is 40% less than the population of state B, then state A's population is ____% of state's B population. 1 solutions Answer 299441 by rfer(12662)   on 2011-04-05 14:51:26 (Show Source): You can put this solution on YOUR website!60%
 Equations/431508: the quotient of a number and nine is three1 solutions Answer 299440 by rfer(12662)   on 2011-04-05 14:50:19 (Show Source): You can put this solution on YOUR website!9/3=3
 Evaluation_Word_Problems/431382: ∛16+3∛541 solutions Answer 299413 by rfer(12662)   on 2011-04-05 12:31:15 (Show Source): You can put this solution on YOUR website!2.51+11.34=13.45
 Quadratic_Equations/431408: Find the vertex and x-intercept(s) of the function given below. y=(x-4)(x+2) A. Vertex: (-4,2); Intercepts: x = 3, -3 B. Vertex: (1,-9); Intercepts: x = 4, -2 C. Vertex: (1,9); Intercepts: x = -4, -2 D. Vertex: (1,-5); Intercepts: x = -4, 2 1 solutions Answer 299412 by rfer(12662)   on 2011-04-05 12:28:53 (Show Source): You can put this solution on YOUR website!x^2-2x-8 B) is the answer