Mathematics OpenStudy (anonymous):

A carpet layer wisher to determine the cost of carpeting a rectangular room whose perimeter is 52 feet. Suppose that the lenght of the room is 4 feet more than its width. Find: a. the length and width of the room; b. the cost of the carpet if it costs \$18.95 per square yard. Thanks. OpenStudy (anonymous):

a) solve $52 = 2x+2(x+4)$ for x OpenStudy (anonymous):

$52=2x+2x+8$ $52=4x+8$ $44=4x$ $x=11$ so dimensions are 11 by 15 OpenStudy (anonymous):

and area is $11\times 15=165$ finally $165\times \18.95=\3126.75$ OpenStudy (anonymous):

thank you so much for your help OpenStudy (anonymous):

yw OpenStudy (anonymous):

May I bother you with another problem? OpenStudy (anonymous):

name it OpenStudy (anonymous):

thanks A carpenter needs 2 pieces of lumber which together are 21 feet long. The longer piece needs to be 1 foot longer than 3 times the length of the shorter piece. Find the lenght of each piece. OpenStudy (anonymous):

maybe we use two variables $x+y=21$ $x=3y+1$ OpenStudy (anonymous):

where x is the longer piece. so the first equation says $3y+1+y=21$ $4y+1=21$ $4y=20$ $y=5$ OpenStudy (anonymous):

shorter one is 5, longer one is 16 OpenStudy (anonymous):

but please don't think there is any one right way to do this. you could have said "let x = length of shorter one, then since the total is 21 to longer one must be 21 - x" then solve $3x+1=21-x$ OpenStudy (anonymous):

or you could have solved for the longer one. it is really a matter of naming a variable and then coming up with two expressions that involve the variable. OpenStudy (anonymous):

see what i came up with was x+1f+3x=21f and came up with the same answer x=5 OpenStudy (anonymous):

but your makes more sense, thanks again

Latest Questions midnightriver46: Lab: Motion with Constant Acceleration I don't know how to do this can someone explain or does anyone know the answers to this.
1 hour ago 2 Replies 0 Medals Bifinley: The diagram below models the layout at a carnival where G, R, P, C, B, and E are various locations on the grounds.
2 hours ago 2 Replies 1 Medal Cardi1234: How many yards is in 500 ft?
4 hours ago 2 Replies 1 Medal P1n3appl31: If I am correct, You have to include more of a salt diet, drink 100-120 fl oz of
4 hours ago 1 Reply 1 Medal Sailor: Homework help? It's algebra 2 if anyone knows how to do that, i dont want the answer i just need a small refresher because I can't find any kind of helpful
7 hours ago 2 Replies 1 Medal solodive: Idk I'm just curious this isn't for class or anything but how do you take care of
7 hours ago 12 Replies 2 Medals purplecow: The graph shows the functions f(x) PX Angie X pate what is the solution to the pair of equations represented by PX and GX Papi write any two solutions for G
4 hours ago 3 Replies 0 Medals BrokenAngel07: I wrote this some time ago, idk of it'd be considered a song or something I wrote.
1 hour ago 9 Replies 4 Medals Olive2006: Tell me what you think of my story. https://www.wattpad.com/1255046896-unruly-hea
14 hours ago 7 Replies 3 Medals chocalatechipcookie: @vocaloid In circle A, marc BC is 67u00b0 and marc EF is 74u00b0: What is mu2220F
2 hours ago 3 Replies 1 Medal