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Surface-area/337833: What is the area of a garden that is 12 meters long and 3 meters wide? Explain. 1 solutions Answer 242229 by rfer(12662)   on 2010-09-01 18:12:39 (Show Source): You can put this solution on YOUR website! A=L*W A=12*3=36sq m

Travel_Word_Problems/337879: If two trains leave New Haven traveling in opposite directions one is traveling at 75 miles per hour and they are 405 miles apart in 3 hours what speed is the second train traveling at. 1 solutions Answer 242226 by rfer(12662)   on 2010-09-01 18:04:43 (Show Source): You can put this solution on YOUR website! 405/3=135 apart in one hr 135-75=60 mph

Linear-equations/337842: Write the equation of a line with a slope of 1/2 that passes through (-7, -5) in slope intercept form. 1 solutions Answer 242224 by rfer(12662)   on 2010-09-01 18:03:04 (Show Source): You can put this solution on YOUR website! y=1/2x-1 1/2

real-numbers/337860: how do you solve this algebraic expression: 5 less than the difference between 7 and z 1 solutions Answer 242220 by rfer(12662)   on 2010-09-01 17:59:10 (Show Source): You can put this solution on YOUR website! (7-z)-5 2-z

Geometry_Word_Problems/337878: In a isosceles triangle, two sides are the equal. The third side is two less than twice the length of the two equal sides. The perimeter is 38. What are the lengths of the three sides? 1 solutions Answer 242218 by rfer(12662)   on 2010-09-01 17:57:10 (Show Source): You can put this solution on YOUR website! 2x+2x-2=38 4x=40 x=10 equal sides 2x-2=18 long side

Travel_Word_Problems/337876: you leave your house driving at 50km/hr. your friend leaves your house 15 minutes later going in the same direction at 68 km/hr. how long will it take your friends to catch you? 1 solutions Answer 242216 by rfer(12662)   on 2010-09-01 17:54:55 (Show Source): You can put this solution on YOUR website! 12.5 km lead 18 km/h overtake speed 12.5/18=0.69 hrs=41.5 min

Miscellaneous_Word_Problems/337863: A car rental company charges $80 per week plus 10 cents for each mile driven on its midsize cars. The total weekly cost C (in dollars) is given by the linear model C=80+ 0.10m where m represents the weekly mileage driven. What is the cost C when the car has been driven 350 miles in a week? How many miles are driven if the cost is $95? Thank You 1 solutions Answer 242213 by rfer(12662)   on 2010-09-01 17:51:26 (Show Source): You can put this solution on YOUR website! c=80+0.10*350 c=$115 ------------- 95=80+0.10m 15=0.10m m=150 miles

Geometry_Word_Problems/337868: What is the fewest amount of legs you can have on a table without wobbling? 1 solutions Answer 242211 by rfer(12662)   on 2010-09-01 17:48:15 (Show Source): You can put this solution on YOUR website! 3

Linear-equations/337865: What is the answer to: y= 2/5(-3)-1 ? (x being -3) I cannot remember how to multiply fractions with whole numbers :[. thanks! 1 solutions Answer 242210 by rfer(12662)   on 2010-09-01 17:47:20 (Show Source): You can put this solution on YOUR website! the whole number 3 is the same as 3/1 y=2/5*-3/1-1 y=-6/5-5/5 y=-2 1/5 or -11/5

Inequalities/337732: A car rental company offers two subcompact rental plans. Plan A: $36 per day and unlimited mileage Plan B: $24 per day plus $0.15 per mile Use an inequality to find the number of daily miles for which plan A is more economical than plan B. 1 solutions Answer 242188 by rfer(12662)   on 2010-09-01 15:28:42 (Show Source): You can put this solution on YOUR website! 36=24+.15x 12=.15x 80=x

Linear_Algebra/337781: -49y=105 1 solutions Answer 242183 by rfer(12662)   on 2010-09-01 15:26:16 (Show Source): You can put this solution on YOUR website! y=154

Proportions/337767: A scale on a map is 120 miles to the inch. What is the airline mileage between two cities that are 3/4 inch apart on the map? 1 solutions Answer 242182 by rfer(12662)   on 2010-09-01 15:25:33 (Show Source): You can put this solution on YOUR website! 120*.75=90 miles

test/337489: Fund the slope of 5x-y=-7 1 solutions Answer 241881 by rfer(12662)   on 2010-08-31 21:54:44 (Show Source): You can put this solution on YOUR website! -y=-5x-7 y=5x+7 slope m=5

Miscellaneous_Word_Problems/337402: The current I is an electrical conductor varies inversely as the resistance R of the conductor. The current is 1/7 ampere when the resistance is 21609 ohms. What is the current when the resistance is 3969 Ohms? K=1/7*21609=3087 I=3087/R= How do I use the equation I=3087/R= to find the current when the resistance is 3969 Ohms? I figured out the equation however, I don’t know what to do next. 1 solutions Answer 241880 by rfer(12662)   on 2010-08-31 21:48:53 (Show Source): You can put this solution on YOUR website! I=3087/3969 I=0.7777777777 amps check E=IR E=0.14286*21609 E=3087 volts ----------- E=3969*0.7777777777 E=3087 volts

absolute-value/337481: This is my math homework problem. I don't know what function they want me to do. Multiply? Add? .....? 9 [8-8] thank you. 1 solutions Answer 241878 by rfer(12662)   on 2010-08-31 21:40:33 (Show Source): You can put this solution on YOUR website! use the order of operation 9[8-8] 9*0=0

Complex_Numbers/337476: Solve the algebraic expression for y. 3-2[8-(2y-2)] 1 solutions Answer 241876 by rfer(12662)   on 2010-08-31 21:39:11 (Show Source): You can put this solution on YOUR website! 3-2[8-(2y-2)] 3-2[8-2y+2} 3-20+4y -17+4y

Equations/337478: WHAT IS 1-(2-3)+8 1 solutions Answer 241875 by rfer(12662)   on 2010-08-31 21:36:57 (Show Source): You can put this solution on YOUR website! 1+1+8=10

Distributive-associative-commutative-properties/337480: what is the anwser to -10(1+8n)-10n 1 solutions Answer 241874 by rfer(12662)   on 2010-08-31 21:36:11 (Show Source): You can put this solution on YOUR website! -10-80n-10n -10-90n

Pythagorean-theorem/337428: I need help with graphing the line y=1/2x + 1. When I did it I got an answer of 0.5 = y. Am I correct? 1 solutions Answer 241873 by rfer(12662)   on 2010-08-31 21:34:57 (Show Source): You can put this solution on YOUR website! It is in y intercept form (0,1) (-2,0) y=1/2x+1 0=1/2x+1 1/2x=-1 x=-1/1*2/1 x=-2/1=-2

Equations/337474: "The perimeter of a pool table is 30 feet. The table is twice as long as it is wide. What is the length of the pool table ?" What is an equation I could use to solve this problem ? 1 solutions Answer 241870 by rfer(12662)   on 2010-08-31 21:27:30 (Show Source): You can put this solution on YOUR website! 2x+2(2x)=30

Numeric_Fractions/337420: I am so confused. I went to pre algebra in 7th and now im in algebra im in eighth grade. I forgot SOOOOOOO much from last year and we were just reviewing stuff for this first week of school. I dont know how to do anything. I have a quiz tomorrow and if i fail i get sent back to pre algebra... One of my questions are 2 1/2 + (- 3/4) Please help. I dont want to go back to pre algebra! 1 solutions Answer 241868 by rfer(12662)   on 2010-08-31 21:26:24 (Show Source): You can put this solution on YOUR website! 2 1/2+(-3/4) remember a plus times a minus equals a minus find common denominator 10/4-3/4=7/4

Rectangles/337471: please help me solve this question the length of a rectangle is 7 more than the width. the perimeter is 58 what is the length and the width im not sure how to even solve it and what the equation would be 1 solutions Answer 241863 by rfer(12662)   on 2010-08-31 21:22:59 (Show Source): You can put this solution on YOUR website! 2x+2(x+7)=58 2x+2x+14=58 4x=44 x=11 x+7=18

Age_Word_Problems/337407: my mommy is 4 times as old as i am. the sum of our age is 40. how old is mommy? 1 solutions Answer 241862 by rfer(12662)   on 2010-08-31 21:21:13 (Show Source): You can put this solution on YOUR website! x+4x=40 5x=40 x=8 4x=32

Rectangles/337413: Calculate the area of a rectangle with a length of 13.0 cm and a width of 91.0 mm. 1 solutions Answer 241861 by rfer(12662)   on 2010-08-31 21:20:07 (Show Source): You can put this solution on YOUR website! 13*9.1=118.3 cu cm

Equations/337423: The total cost to rent a row boat is $18 times the number of hours the boat is used. write an equation to model this situation if c=total coast and h=munber of hours 1 solutions Answer 241859 by rfer(12662)   on 2010-08-31 21:18:43 (Show Source): You can put this solution on YOUR website! c=18h

Equations/337425: 564t=744(t-1/2) 1 solutions Answer 241857 by rfer(12662)   on 2010-08-31 21:17:47 (Show Source): You can put this solution on YOUR website! 564t+744(t-1/2) 564t=744t-372 180t=372 t=2.07 or t=2 7/100

Complex_Numbers/337469: The measures of an angle and its supplement differ by 40 degrees. Find the measures of the angles 1 solutions Answer 241854 by rfer(12662)   on 2010-08-31 21:14:03 (Show Source): You can put this solution on YOUR website! x+x+40=180 2x=140 x=70 degrees x+40=110 degrees

Exponents/337433: which of the following expressions is equivalent to 20-4/5x>16 1. x<5 2. x>5 3. x<32.5 4. x>32.5 1 solutions Answer 241853 by rfer(12662)   on 2010-08-31 21:12:59 (Show Source): You can put this solution on YOUR website! 20-4/5x>16 -4/5x>-4 x<-4/1*-5/4 x<20/4 x<5 looks like number one

Exponents/337466: what is (2+8-12)x4 1 solutions Answer 241851 by rfer(12662)   on 2010-08-31 21:08:38 (Show Source): You can put this solution on YOUR website! -2*4=-8

Linear-equations/337444: What is the slope and y-intercept of the line, of the equations y= -9/7x + 2 and 9x+3y=6? 1 solutions Answer 241849 by rfer(12662)   on 2010-08-31 21:07:46 (Show Source): You can put this solution on YOUR website! A) slope m=-9/7 y int=2 (0,2) B) 9x+3y=6 3y=-9x+6 y=-3x+2 slope m=-3 y int=2 (0,2)

Inequalities/337456: using the order of operations evaluate t + (12 - t) / 2 for t = 6 1 solutions Answer 241846 by rfer(12662)   on 2010-08-31 21:02:15 (Show Source): You can put this solution on YOUR website! 6+(12-6)/2 6+6/2=9