1) Given A = bh/2, find A when b = 12.6, h = 42.
2) 5x - 1 = 26 what does x equal?
3) 7x + 2 = 10 what does x equal?
4) 3x/6+ 1 = 7
5) 5x/2 - 3 = 17
6) 3(3x - 1) + 2(3 - x) = 0 put awnser in form of a fraction in simplest forum.
i need help in math easy 10 points.?
2008-12-22 4:14 pm
回答 (10)
2008-12-22 4:30 pm
✔ 最佳答案
1)A = bh/2
A = (12.6)(42)/2
A = 529.2/2
A = 264.6
2)
5x - 1 = 26
5x = 26 + 1
x = 27/5 (5.4)
3)
7x + 2 = 10
7x = 10 - 2
7x = 8
x = 8/7
4)
(3x)/6 + 1 = 7
(3x)/6 = 7 - 1
3x = 6(6)
x = 36/2
x = 18
5)
(5x)/2 - 3 = 17
(5x)/2 = 17 + 3
5x = 2(20)
5x = 40
x = 40/5
x = 8
6)
3(3x - 1) + 2(3 - x) = 0
3*3x - 3*1 + 2*3 - 2*x = 0
9x - 3 + 6 - 2x = 0
9x - 2x = 3 - 6
7x = -3
x = -3/7
2016-10-18 11:54 am
so in certainty all of those r diverse variety structures a million) a interger is a typical total variety and its detrimental. (So 40 5, 3, and -769 could be intergers, 5.4 does no longer be) 2) A organic variety are the 1st ten numbers, the two a million-10 or some say that they are 0-9. 3) an entire variety is a variety it is for counting or noted as the counting numbers. (0,a million,2,3,4,5...) 4) Rational numbers are numbers that have a diverse value, a variety that ends like a million.25 unlike a million/3 that's .333333333... 5) Irrational numbers are numbers that dont have a diverse value, or on no account end like a million/3.
2008-12-22 4:31 pm
1.A=(12.6*42)/2=12.6*21=264.6
2) 5x-1=26
5x=25
x=5
3) 7x+2=10
7x=8
x=8/7
4) 3x/6+ 1 = 7
x/2=6
x=12
5) 5x/2 - 3 = 17
5x/2=20
5x=40
x=8
6) 3(3x - 1) + 2(3 - x) = 0 put awnser in form of a fraction in simplest forum.
3(3x-1)=-2(3-x)
9x-3=-6+2x
7x=-3
x=-3/7
2) 5x-1=26
5x=25
x=5
3) 7x+2=10
7x=8
x=8/7
4) 3x/6+ 1 = 7
x/2=6
x=12
5) 5x/2 - 3 = 17
5x/2=20
5x=40
x=8
6) 3(3x - 1) + 2(3 - x) = 0 put awnser in form of a fraction in simplest forum.
3(3x-1)=-2(3-x)
9x-3=-6+2x
7x=-3
x=-3/7
2008-12-22 4:28 pm
1) Given A = bh/2, find A when b = 12.6, h = 42.
A = (12.6)(42)/2 = 264 3/5
2) 5x - 1 = 26 what does x equal?
x = 5
3) 7x + 2 = 10 what does x equal?
x = 11/7
4) 3x/6+ 1 = 7
x = 12
5) 5x/2 - 3 = 17
x = 8
6) 3(3x - 1) + 2(3 - x) = 0
7x + 3 = 0
x = -3/7
A = (12.6)(42)/2 = 264 3/5
2) 5x - 1 = 26 what does x equal?
x = 5
3) 7x + 2 = 10 what does x equal?
x = 11/7
4) 3x/6+ 1 = 7
x = 12
5) 5x/2 - 3 = 17
x = 8
6) 3(3x - 1) + 2(3 - x) = 0
7x + 3 = 0
x = -3/7
2008-12-22 4:27 pm
1) Given A = bh/2, find A when b = 12.6, h = 42.
A= (12.6)(42)/2 =264.6
3) 7x+2=10
7x=8
x=8/7
6) 9x-3+ 6-2x=0
7x+3=0
x=-3/7
A= (12.6)(42)/2 =264.6
3) 7x+2=10
7x=8
x=8/7
6) 9x-3+ 6-2x=0
7x+3=0
x=-3/7
2008-12-22 4:26 pm
1) 264.6
2) 5.4
3) 1.143
4) 16
5) 2
6) -3/7
guaranteed all answers right
2) 5.4
3) 1.143
4) 16
5) 2
6) -3/7
guaranteed all answers right
2008-12-22 4:25 pm
1) A = bh/2, b = 12.6, h = 42
A = 12.6*42/2
thus, A = 264.6
2) 5x - 1 = 26
5x = 27
x = 27/5 or 5.4
3) 7x + 2 = 10
7x = 8
x = 8/7
4) 3x/6 + 1 = 7
3x/6 = 6
3x = 6*6
x = 6*6/3
x = 12
5) 5x/2 - 3 = 17
5x/2 = 20
5x = 40
x = 8
6) 3(3x - 1) + 2(3 - x) = 0
9x - 3 + 6 - 2x = 0
7x + 3 = 0
7x = -3
x = -3/7
A = 12.6*42/2
thus, A = 264.6
2) 5x - 1 = 26
5x = 27
x = 27/5 or 5.4
3) 7x + 2 = 10
7x = 8
x = 8/7
4) 3x/6 + 1 = 7
3x/6 = 6
3x = 6*6
x = 6*6/3
x = 12
5) 5x/2 - 3 = 17
5x/2 = 20
5x = 40
x = 8
6) 3(3x - 1) + 2(3 - x) = 0
9x - 3 + 6 - 2x = 0
7x + 3 = 0
7x = -3
x = -3/7
2008-12-22 4:25 pm
1. 264.6
2. 27/5
3. 8/7
4. 12
5. 8
6. -3/7
2. 27/5
3. 8/7
4. 12
5. 8
6. -3/7
2008-12-22 4:25 pm
Cheating on homework is never the right answer.
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