mn +mp
7a + 7b
24b + 48
t(19+2) = 21t
3x
n = 9
y = 5
a = 20/3 I think.
Do your own homework.
2006-07-18 07:25:24
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answer #1
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answered by Anonymous
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m(n + p) = mn + mp
distribute property
7(a + b) = 7a + 7b
distribute property
8(3b + 6) = 24b + 48
dustribute property
Simplify each of the folllowing expressions
19t + 2t = 11t
adding like terms
3x + (-2x) 2 + 2x
Clear the parenthesis
3x-2x +2x
the equation becomes
3x
-2x + 2x
Cancell
The andwer if 3x
The solution set is {3x}
Solve each equation
3n + 2n = 45
add like terms
5n + 45
5n/5 = 45/5
divide 5 on both sides
n = 9
The andwer is 9
The solution set is {9}
11y -2y -45
collect like terms
9y-45 = 0
9y-45 = 0
+45 +45
Add 45 to both sides
9y = 45
9y/9 = 45/9
Divide 9 from both sides
y = 5
The answer is y = 5
The solution set is {5}
a/5 + 2/3 = 2
common denominator is 15
15(a/5) + 15(2/3) = 15(2)
multiply the both sides by 15 and simplify
3a + 10 = 30
-10 -10
subtract -10 from both sides
3a = 20
3a/3 = 20/3
divide 3 from both sides
a = 6.666666667
a = 6.6
rounded to one deximal place
The answer is y = 6.6
The solution set is {6.6}
2006-07-18 15:37:01
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answer #2
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answered by SAMUEL D 7
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1. mn+mp (distribute the m, you can't add the two numbers together b/c the variables arn't the same)
2. 7a+7b
3. 24b+ 48
4. 21t (they both have t's so they can be added together)
5. 3x (the 2 and the negative 2 basically cancel out)
6. n=9 (3n+2n=5n, then divide 45 by 5)
7. y=5
8.a=20/3 (hint: a/5 is the same as a times 1/5)
2006-07-18 14:28:12
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answer #3
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answered by Delusions of Grandeur 5
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i'm not going to get mad, because I'm helping you
and I know that it's going to bite you in the behind when you get to high school and college and you can't do this stuff... you'll be thought of stupid, no offense
m (n + p) = m*n + p*m
7 (a+ b) = 7a + 7b
8(3b+6) = 24b + 48
19t+2t = 21t
3x+(-2x) + 2x = 3x
3n + 2n = 45
5n = 45
n = 9
11y-2y-45=0
11y - 2y = 45
9y = 45
y = 5
a/5 + 2/3 = 2
3a/15 + 10/15 = 2
(3a + 10) / 15 = 2
3a + 10 = 30
3a = 20
a = 20/3
2006-07-18 14:33:32
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answer #4
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answered by mommy_mommy_crappypants 4
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find each product
m (n + p)
= mn + mp
7 (a+ b)
= 7a + 7
8(3b+6)
= 24b + 48
simplify each of the following expressions
19t+2t
= t (19 + 2)
3x+(-2x) + 2x
= x (3 + -2 + 2)
solve each equeation
3n + 2n = 45
5n = 45
n = 9
11y-2y-45=0
= 9y - 45 = 0
= 9y = 45
= y = 5
a/5 + 2/3 = 2
a + 10 = 30
a = 20
how did you do each of these problems?
-from my brain-
---------------------
THANKSSS
-You Are Welcome-
---------------------------
2006-07-18 16:07:24
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answer #5
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answered by ♥♫♥ÇHÅTHÜ®ÏKÃ♥♫♥ 5
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m(n+p) = mn+mp
7(a+b)= 7a+7b
8(3b+6) = 24b + 48
19t+2t = t (19 + 2 )
3x + (-2x) + 2x = 3x
3n + 2n =45 ------> 5n=45 ---> n = 9
11y -2y -45 =0 ------> 9y =45 ----> y =5
a/5 + 2/3 =2 ------> a= 20/3 ( i am not sure about this)
HOW OLD ARE YOU ???!!
2006-07-18 14:26:50
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answer #6
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answered by Fergie 2
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No, I will not do them for you. If you post what you think the answer is, I'll help you, but I will not do it for you.
For the first 3, you multiply the first variable (e.g. m) by each item in the parentheses.
For the second ones, you put like terms together and do the action (subtraction, addition etc) required.
Same with the 3rd section.
2006-07-18 14:22:00
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answer #7
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answered by Anonymous
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Multiply m(n+p)
like a)m*n+m*p
=mn+mp
m(square)np
b)7*a+7*b
=7a+7b
=14ab
c)8*3b+8*6
=27b+48
=72b
Other don't know
2006-07-18 14:30:58
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answer #8
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answered by ♥♥Lovena♥♥ 2
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first 3 are mn+mp 7a+7b 24b+48 these all u use is the distributive property of integers and distribute the number in front of the parenthesis to the numbers in them.
2006-07-18 14:27:20
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answer #9
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answered by Anonymous
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m(n + p)
mn + pm ... (dont know if its neccessary to go further than this answer)
mn = -pm
n = -p
7(a + b)
7a + 7b ...(dont know if its neccessary to go further than this
7a = -7b
a = -b
8(3b + 6)
24b + 48 ...(dont know if its neccessary to go further than this)
24b = -48
b = -2
19t + 2t
21t ...(dont know if it neccessary to go any further)
21t = 0
t = 0
3x + (-2x) + 2x = 0
3x - 2x + 2x = 0
3x = 0
x = 0
3n + 2n = 45
5n = 45
n = 9
11y - 2y - 45 = 0
9y - 45 = 0
9y = 45
y = 5
a/5 + 2/3 = 2
a + 10 = 30
a = 20
Shot !
2006-07-18 15:30:25
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answer #10
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answered by Anonymous
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