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# Recent problems solved by 'benazir.sj@gmail.com'

 Rational-functions/383137: Multiply. (6x+8)(3x^2+2x+8)1 solutions Answer 271375 by benazir.sj@gmail.com(109)   on 2010-12-08 16:23:44 (Show Source): You can put this solution on YOUR website! (6x+8)(3x^2+2x+8) 6x(3x^2+2x+8) +8(3x^2+2x+8) 6x *3x^2 +6x*2x+6x*+8 +8*3x^2+8*2x+8*8 18x^3+12x^2+48x+24x^2+16x+64 18x^3 +(12+24)x^2+16x+64 18x^3+36x^2 +16x+24
 Geometry_Word_Problems/383132: The volume of a rectangular box is limited to 1100 cu. in. If the height is 8 inches and the width is 10 inches how long can the box be? (1 solutions Answer 271362 by benazir.sj@gmail.com(109)   on 2010-12-08 16:04:48 (Show Source): You can put this solution on YOUR website!Given V=1100 cu.in h= 8in b = 10in l=? v=l*b*h 1100 =l*8*10 1100 =80l 1100/80=l 13.75 =l length of the box is 13.75 in
 Equations/382770: 4(x+7)=-9(x-6) 1 solutions Answer 271179 by benazir.sj@gmail.com(109)   on 2010-12-07 22:38:04 (Show Source): You can put this solution on YOUR website!4(x+7)=-9(x-6) 4*x +4*7 =-9*x -9*(-6) 4x+28 =-9x+54 4x+9x=54-28 13x=26 13x /13 =26/13 x =2
 Rectangles/350485: the perimeter of a certain soccer field is 310m. the lenght is 65 more than the width. what are the dimension?1 solutions Answer 250607 by benazir.sj@gmail.com(109)   on 2010-10-01 11:23:58 (Show Source): You can put this solution on YOUR website!let width =x length =x+65 given perimeter =310 perimeter =2(l+w) 310=2(x+65+x) 310=2(2x+65) 310=4x+130 310-130=4x 180=4x x=180/4 x=45 therefore; width =45 and length =x+65 =45+65 =110
 Linear-equations/350581: 1 solutions Answer 250604 by benazir.sj@gmail.com(109)   on 2010-10-01 11:13:00 (Show Source): You can put this solution on YOUR website!5[3-3(x-1)]+1=2(-64-x)+2x+64 solution: 5[3-3x-3]+1= -128-2x+2x+64 5(-3x)+1=-128+64 -15x+1= -64 -15x=-64-1 -15x=-65 x=-65/-15 x=13/3
 test/350609: 1 solutions Answer 250602 by benazir.sj@gmail.com(109)   on 2010-10-01 11:08:17 (Show Source): You can put this solution on YOUR website!A number increased by 5 is equal to 34. let the number be x so, the number increased by 5 means =>x+5 the equation becomes x+5=34 x=34-5 x=29
 expressions/350565: simplify the following expressions: 4a-2b+3a+b-5a thank you1 solutions Answer 250565 by benazir.sj@gmail.com(109)   on 2010-10-01 04:17:23 (Show Source): You can put this solution on YOUR website!4a-2b+3a+b-5a take the like terms together 4a+3a-5a-2b+b 7a-5a-2b+b 2a-b
 expressions/350566: if x=12,y=8 and z=6 find the values of: 3x+5y+4z 1 solutions Answer 250564 by benazir.sj@gmail.com(109)   on 2010-10-01 04:07:23 (Show Source): You can put this solution on YOUR website!3x+5y+4z if x=12,y=8 and z=6 solution: substitute the values of x,y,z in the given equation 3x+5y+4z =3*12+5*8+4*6 =36+40+24 =100
 Distributive-associative-commutative-properties/338047: what is the greatest common factor of the monomials 18x2, 27x4, 30x3?1 solutions Answer 242365 by benazir.sj@gmail.com(109)   on 2010-09-02 00:02:06 (Show Source): You can put this solution on YOUR website!18x^2 =3*3*2 *x^2 27x^4 =3*3*3*x^2 *x^2 30x^3 =3*5*2*x^2*x GCF =3*x^2 =3x^2
 Rectangles/338048: the width of a rectangle is 3feet less than the length. the perimeter is 62feet. find the length and width of the rectangle.1 solutions Answer 242361 by benazir.sj@gmail.com(109)   on 2010-09-01 23:56:49 (Show Source): You can put this solution on YOUR website!let the length of the rectangle =x width =x-3 given , perimeter =62ft 2(l+w) =62ft 2(x+x-3) =62ft 2(2x-3)=62ft 4x-6 =62ft 4x=62+6 =68ft x=68/4 x=17ft therefore length =17 ft and width =17-3 =14ft
 Exponents/337849: after m months the length of a finger nail is 10+3m millimeters. How long is the fingernail after 8 months? 3 years?1 solutions Answer 242251 by benazir.sj@gmail.com(109)   on 2010-09-01 19:22:39 (Show Source): You can put this solution on YOUR website!length of finger nail in m month =10+3m length of finger nail in 8 months =10+3*8 =10+24 =34mm length of finger nail in 3 years 3 years =3*12months =36 months length of finger nail in 36 month =10+3*36 =10+108 = 118mm
 Expressions-with-variables/337828: 1/2(6-z)=z1 solutions Answer 242201 by benazir.sj@gmail.com(109)   on 2010-09-01 17:10:56 (Show Source): You can put this solution on YOUR website!1/2(6-z)=z solution: 1/2(6-z) *2= 2*z (6-z)=2z 6=2z+z 6=3z 6/3=z z=2
 Linear-equations/337387: slope=0; (4,-2) how do i put this in slope int form?1 solutions Answer 241998 by benazir.sj@gmail.com(109)   on 2010-09-01 01:51:50 (Show Source): You can put this solution on YOUR website!slope point form is (y-y1)=m(x-x1) m =0, x1=4 and y1 =-2 [y-(-2)] =0[x-4] y+2 =0 the slope intercept form is y=mx+b ie, y+2 =0 y=-2
 Exponents-negative-and-fractional/337422: sara has 1.45 in nickels and dimes. there are 18 coins in all. how many of each are there? use the five step method and a table in solving this problem. 1 solutions Answer 241997 by benazir.sj@gmail.com(109)   on 2010-09-01 01:44:25 (Show Source): You can put this solution on YOUR website!nickels =N dimes =D total number of coins =18 N+D=18 N=18-D -----------(1) total nickels and dime is 1.45 5N+10D = 145 --------------(2) substitue the value of N in(2) 5(18-D)+10D= 145 5*18 -5D +10D =145 90 +5D=145 5D=145-90 5D=55 D=11 N+D=18 N+11+18 N=7 there are 7 nickels and 11 dimes Proof: 5N+10D=145 5*7 +10*11=145 35+110=145 145=145
 Geometry_Word_Problems/337583: The perimeter of a rectangular swimming pool is 210 meters. The length of the pool is double the width. Find the length and width of the pool. P=210, P=2L+2W L=2W 210 = 2(2W)+2W 210 = 4W+2W 210 = 6W 210/6 = W W=35 METERS L = 2W)=2(35) = 70 METERS 1 solutions Answer 241995 by benazir.sj@gmail.com(109)   on 2010-09-01 01:20:49 (Show Source): You can put this solution on YOUR website!let width =x length =2x perimeter =210m perimeter =2(l+w) 2(l+w) =210m 2(2x+x)=210 2(3x) =210 6x=210 x=210/6 x=35 ie, width = 35m length =2*35 =70m
 Polynomials-and-rational-expressions/337491: (5.9x^3+3.4x^2-7)-(2.9x^3-9.6x^2+3)1 solutions Answer 241994 by benazir.sj@gmail.com(109)   on 2010-09-01 01:16:44 (Show Source): You can put this solution on YOUR website!(5.9x^3+3.4x^2-7)-(2.9x^3-9.6x^2+3) =(45x^3 +12x^2 -7) -(18x^3-54x^2+3) remove the paranthesis =45x^3+12x^2 -7 -18x^3 +54x^2 -3 take the like terms together and simplify 45x^3-18x^3 +12x^2+54x^2 -7-3 => (45-18)x^3 + (12+54)x^2 -(7+3) => 27x^3 + 66x^2 -10
 Triangles/337568: A triangle has an area of 2.25 square feet. What is the area of the triangle in square inches? 1 solutions Answer 241992 by benazir.sj@gmail.com(109)   on 2010-09-01 00:54:31 (Show Source): You can put this solution on YOUR website!There are 144 square inches in a square foot Therefore, square feet X 144 = square inchs given area of triangle =2.25 square feet ie, 2.25 *144 squarefeet = 324 square inches 2.25sq ft =324 sqin
 Human-and-algebraic-language/337574: 32.00 dollars total bill. Jeans cost 10.00 dollars more than shirt. What did jeans cost?1 solutions Answer 241986 by benazir.sj@gmail.com(109)   on 2010-09-01 00:41:05 (Show Source): You can put this solution on YOUR website!cost of shirt =x cost of jeans =x+10 total cost =\$32 x+x+10 =32 2x+10 =32 2x=32-10 2x=22 x=11 cost of shirt =\$11 cost of jeans =x+10 =\$11+\$10 =\$21