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Linear-equations/319558: Find the x-intercept and the y-intercept for the equation y = -¾x + 3. 1 solutions Answer 228839 by rfer(12730)   on 2010-07-03 19:46:12 (Show Source): You can put this solution on YOUR website! y int=(0,3) x int=(4,0)

Miscellaneous_Word_Problems/319492: How would you solve this problem algebraically? The sum of two angles is 180 degrees and the angles have a ratio of 7:8. What is the number of degrees in the smaller angle? 1 solutions Answer 228822 by rfer(12730)   on 2010-07-03 17:38:52 (Show Source): You can put this solution on YOUR website! 7x+8x=180 15x=180 x=12 degrees 7x=84 degrees 8x=96 degrees

Money_Word_Problems/319455: Amy paid $76.08 for a pair of running shoes during a 15% off sale. What was the regular price? 1 solutions Answer 228821 by rfer(12730)   on 2010-07-03 17:36:33 (Show Source): You can put this solution on YOUR website! 76.08/0.85=$89.50

Graphs/319546: Find the slope and y-intercept for each line that has a slope and y intercept. x+2y=3 1 solutions Answer 228820 by rfer(12730)   on 2010-07-03 17:35:00 (Show Source): You can put this solution on YOUR website! slope=m=1 y intercept=(0,3/2)=(0,1.5)

Graphs/319547: Graph each line using its y-intercept and slope. y+4x=8 1 solutions Answer 228819 by rfer(12730)   on 2010-07-03 17:33:22 (Show Source): You can put this solution on YOUR website! slope=m=4 y intercept=(0,8)

Problems-with-consecutive-odd-even-integers/319458: Solve using the multiplication principle. -4 = x/9 1 solutions Answer 228818 by rfer(12730)   on 2010-07-03 17:31:53 (Show Source): You can put this solution on YOUR website! -4*9=x x=-36

Problems-with-consecutive-odd-even-integers/319460: Solve the equation. -2p - 5 = -3 - 6p 1 solutions Answer 228817 by rfer(12730)   on 2010-07-03 17:31:07 (Show Source): You can put this solution on YOUR website! +4p=+2 p=0.5

Problems-with-consecutive-odd-even-integers/319459: Solve the equation. 180 = 11x + 9x 1 solutions Answer 228816 by rfer(12730)   on 2010-07-03 17:29:40 (Show Source): You can put this solution on YOUR website! 180=20x x=9

Linear-equations/319268: 5x + 1 = 21 1 solutions Answer 228728 by rfer(12730)   on 2010-07-02 22:39:04 (Show Source): You can put this solution on YOUR website! 5x+1=21 5x=20 x=4

Percentage-and-ratio-word-problems/319406: In 2005, the United States alone accounted for 23.5% of the world's total energy consumption, using 105.3 quadrillion British thermal units (Btu). What was the world's energy consumption in 2005? Round to the nearest quadrillion. 1 solutions Answer 228727 by rfer(12730)   on 2010-07-02 22:35:59 (Show Source): You can put this solution on YOUR website! 105.3/.235=448 q

Numeric_Fractions/319299: -5/8 X - 2/5 = 1 solutions Answer 228726 by rfer(12730)   on 2010-07-02 22:34:00 (Show Source): You can put this solution on YOUR website! =10/40=1/4

Rate-of-work-word-problems/319407: Solve the problem. One packet of seeds can plant 4 rows of petunias. How many packets of seeds would be needed to plant 28 rows of petunias? Show your step by step work! Include correct units with your solution. 1 solutions Answer 228725 by rfer(12730)   on 2010-07-02 22:31:49 (Show Source): You can put this solution on YOUR website! 28/4=7 packets

real-numbers/319413: Please help me solve this equation: Between what two integers does each of the following real numbers lie? 1.) square root of 230 1 solutions Answer 228724 by rfer(12730)   on 2010-07-02 22:30:26 (Show Source): You can put this solution on YOUR website! 15 & 16

Expressions-with-variables/319307: Solve by substitution method y = x + 4 3y – 5x = 6 1 solutions Answer 228708 by rfer(12730)   on 2010-07-02 19:08:31 (Show Source): You can put this solution on YOUR website! 3(x+4)-5x=6 3x+12-5x=6 -2x=-6 x=3 ------------------ 3y-5*3=6 3y-15=6 3y=21 y=7 ------------- 7=3+4

Systems-of-equations/318918: The length of a rectangle is 4m longer than its width. If the perimeter of the rectangle is 44m , find its area 1 solutions Answer 228323 by rfer(12730)   on 2010-06-30 21:39:25 (Show Source): You can put this solution on YOUR website! 2x+2(x+4)=44 2x+2x+8=44 4x=36 x=9 x+4=13 13*9=117 sq m

Angles/318809: determine an angle of its complement 1 solutions Answer 228311 by rfer(12730)   on 2010-06-30 20:10:43 (Show Source): You can put this solution on YOUR website! need more info?

Linear-systems/318870: A car is traveling on a highway at 70 miles per hour. The distance in miles from it's destination is 385 miles. a) Does the relation between the number of miles from the car's destination and the time in hours traveled represent a linear function? I answered "yes" b) If so, what are the input/output variables? input ____________ output _____________ 1 solutions Answer 228310 by rfer(12730)   on 2010-06-30 20:09:22 (Show Source): You can put this solution on YOUR website! B) input speed, output time

Linear_Algebra/318925: The domain of x is {-1, 0, 2}. Solve the equation: -2x + y = -3 1 solutions Answer 228308 by rfer(12730)   on 2010-06-30 20:06:45 (Show Source): You can put this solution on YOUR website! -2x+y=-3 -2(-1)+y=-3 y=-5 (-1,-5) you try the others

Linear_Algebra/318926: Complete the ordered pair to solve: -x + 4y = 9; (-1, ___ ) 1 solutions Answer 228306 by rfer(12730)   on 2010-06-30 20:04:47 (Show Source): You can put this solution on YOUR website! 1+4y=9 4y=8 y=2 (-1,2)

Expressions-with-variables/318842: Amy paid 70.67 for a pair of shoes during a 40% off sale. What was the regular price? 1 solutions Answer 228285 by rfer(12730)   on 2010-06-30 18:43:21 (Show Source): You can put this solution on YOUR website! 70.67/.6=117.78

Rational-functions/318855: The 10th grade raffle sold 127 tickets. If they award 1st and 2nd prize, how many different pairs of winners are possible? a) 16,129 b) 254 c) 16,002 d) 8,001 1 solutions Answer 228284 by rfer(12730)   on 2010-06-30 18:40:13 (Show Source): You can put this solution on YOUR website! A) 127^2

Evaluation_Word_Problems/318892: A car rental company charges $25 a day plus $.10 a mile. Maurice rented a car for 3 days and was charged $105. 1)For how many miles did he get charged? 2)If he actually drove the car 250 miles, did he get charged the right amount? 1 solutions Answer 228283 by rfer(12730)   on 2010-06-30 18:37:27 (Show Source): You can put this solution on YOUR website! 30/.1=300 mi He was over charged for 50 miles

Angles/318811: two angles are congruent, adjacent, and supplementary. what is the measure of each? 1 solutions Answer 228210 by rfer(12730)   on 2010-06-30 12:32:05 (Show Source): You can put this solution on YOUR website! 90 degrees each

Angles/318816: determine an angle which is 1/5 of its complement 1 solutions Answer 228209 by rfer(12730)   on 2010-06-30 12:30:48 (Show Source): You can put this solution on YOUR website! 90/5=18 degrees

Angles/318813: two angles are adjacent and supplementary. what is the only true measure of each 1 solutions Answer 228208 by rfer(12730)   on 2010-06-30 12:28:26 (Show Source): You can put this solution on YOUR website! 90 degrees each

Geometric_formulas/318812: two angles are congruent and complementary. what is the measure of each? 1 solutions Answer 228207 by rfer(12730)   on 2010-06-30 12:27:52 (Show Source): You can put this solution on YOUR website! 45 degrees each

Money_Word_Problems/318682: Find the future value (FV) of the annuity due. (Round your answer to the nearest cent.) $175 monthly payment, 6.25% interest, 12 years I have tried: 175(1+0.0625)^144-1/0.0625*(1+0.0625) 1 solutions Answer 228145 by rfer(12730)   on 2010-06-30 00:00:11 (Show Source): You can put this solution on YOUR website! try with /1-0.0625 instead of what you are using.

Travel_Word_Problems/318694: If a car travels 1/100 of a kilometer each second, how many kilometers does it travel per hour? 1 solutions Answer 228144 by rfer(12730)   on 2010-06-29 23:51:52 (Show Source): You can put this solution on YOUR website! 1/100*3600/1=3600/100=36 kph

Complex_Numbers/318642: Jim's weekly pay is two thirds of Alicia's. Together they earn $800 per week. What is each person's weekly pay? 1 solutions Answer 228107 by rfer(12730)   on 2010-06-29 19:57:42 (Show Source): You can put this solution on YOUR website! 800/3=266.67 Alicia's Jim's=533.33

Geometry_Word_Problems/318649: the formula for the volume of a cylinder is V=pi r^2h, where V is the volume, r is the radius of the base and h is the height of the cylinder. Solve the given formula for h. 1 solutions Answer 228105 by rfer(12730)   on 2010-06-29 19:55:19 (Show Source): You can put this solution on YOUR website! h=V/(pir^2)

Geometry_Word_Problems/318651: the two equal side of an isosceles triangle are each 9 cm longer than the other side. if the perimeter of the triangle is 81 cm, what is the length of each side? 1 solutions Answer 228103 by rfer(12730)   on 2010-06-29 19:53:59 (Show Source): You can put this solution on YOUR website! 2(x+9)+x=81 3x+18=81 3x=63 x=21 cm 2 at x+9=30 cm each