Also, what's the area and perimeter of a rectangle who's length is 2x+14 and width is 5 ?
2007-10-15 12:59:59 · 13 answers · asked by Anonymous in Education & Reference ➔ Homework Help
and to the person who said "now if i tell you how will you learn" ive tried, im an 9th grader in 9th grade math, science, english, and spanish! just gimme a break.
2007-10-15 13:05:01 · update #1
im an 8th grader***
2007-10-15 13:05:50 · update #2
3x + 6(x-5) (multiply the 6 with x and 5)
3x + 6x - 30 (plus 6x and 3x)
9x - 30
Area: 5(2x + 14) (multiply the length and the width)
10x + 70
Perimeter: 2(2x+ 14) + 2(5) (in rectangle there are two sides of width and length. Then, multiply it and plus the answers you get)
4x + 28 + 10
4x + 38
2007-10-15 13:13:01 · answer #1 · answered by ♥JO the KrYpToN◄ 5 · 0⤊ 0⤋
There are 2 the thank you to try this: a million) Use FOIL technique--- Multiply the two first words jointly; next multiply the outer words jointly; then the indoors words; then final words Or 2) basically distribute in the time of each and each term. allotting in the time of: 2x(3x + 4) + 5(3x+4) = 6x^2 + 8x + 15x + 20 = 6x^2 + 23x + 20
2016-11-08 10:38:26 · answer #2 · answered by feiss 4 · 0⤊ 0⤋
3x + 6(x-5)
3x + 6x - 30
9x - 30
Area: 5(2x + 14)
10x + 70
Perimeter: 2(2x+ 14) + 2(5)
4x + 28 + 10
4x + 38
2007-10-15 13:04:23 · answer #3 · answered by gateach 5 · 1⤊ 0⤋
3x+6(x-5)
beacause 6 times x and 6 times 5
3x+6x-30
9x-30
2007-10-15 13:06:30 · answer #4 · answered by victor1239 2 · 0⤊ 0⤋
3x + 6x - 30 = 9x-30
30=9x
30/9=x
3 1/3 = x
Don't know about the 2nd question.
2007-10-15 13:08:42 · answer #5 · answered by Treadstone 7 · 0⤊ 0⤋
6x-30+3x =
9x-30
2007-10-15 13:02:42 · answer #6 · answered by Yo Btches 2 · 0⤊ 0⤋
simlified = 9x-30
sorry dont know about the rectangle
2007-10-15 13:03:48 · answer #7 · answered by Anonymous · 0⤊ 0⤋
3x-10
2007-10-15 13:08:02 · answer #8 · answered by Anonymous · 0⤊ 0⤋
3x-10
And i'm too lazy to figure out the other one. Sorry =]
2007-10-15 13:02:32 · answer #9 · answered by JC 2 · 0⤊ 0⤋
well if i give you the answer how will you ever learn?
2007-10-15 13:02:33 · answer #10 · answered by Kayla 2 · 0⤊ 0⤋