If the second equation is multiplied by 4 and then the equations are added, the result is _____. x + 4y = 1 x - y = -3 5x = -11 3x = -13 5x = -13
If the second equation is multiplied by 4 and then the equations are added, the result is 5x = -11, x + 4y = 1 x - y = -3. x*4 - y*4 = -3*4; 4x - 4y = -12; x + 4x + 4y - 4y = -12 + 1; 5x = -11
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Question
Updated 6/26/2016 6:38:09 AM
Rating
8
If the second equation is multiplied by 4 and then the equations are added, the result is 5x = -11, x + 4y = 1 x - y = -3.
x*4 - y*4 = -3*4;
4x - 4y = -12;
x + 4x + 4y - 4y = -12 + 1;
5x = -11
Confirmed by Andrew. [6/26/2016 9:28:57 AM]

Questions asked by the same visitor
What is the seventh term of a sequence whose first term is 1 and whose common ratio is 3? 243 729 2,187
Question
Updated 6/18/2016 1:06:10 AM
The seventh term of a sequence whose first term is 1 and whose common ratio is 3 is 729.
7th term = 1*3^(7-1) = 3^6 = 729
Confirmed by Andrew. [6/18/2016 5:24:01 PM]
Select the correct product. (x + 8)(y + 3) xy + 8x + 3y + 24 xy + 3x + 8y + 24 11xy 24xy
Weegy: 3x+8y+24 User: Find the product. (y^3)^2 · y^7 y^17 y^12 y^42 y^13 (More)
Question
Updated 6/23/2016 4:22:59 PM
(x + 8)(y + 3)
= x*y + 8*y + x*3 + 8*3
= xy + 8y + 3x + 24
Confirmed by jeifunk [6/23/2016 4:32:43 PM], Unconfirmed by jeifunk [6/23/2016 4:32:43 PM], Confirmed by jeifunk [6/23/2016 4:32:59 PM]
(y^3)^2*y^7
= y^6*y^7
= y^13
Confirmed by jeifunk [6/23/2016 4:32:49 PM]
Simplify. (-3ab^3)^4
Weegy: (-3ab^3)^4 = (-3ab^3)(-3ab^3)(-3ab^3)(-3ab^3) = 81a^4b^12 User: Simplify. 1.5m^7(-4m^5)^2 Weegy: 1.5m^7(-4m^5)^2 = =24m^17 User: (-4a^3)^3·a^4 (More)
Question
Updated 6/16/2016 11:03:54 PM
(-4a^3)^3·a^4
= -64a^9*a^4
= -64a^13
Confirmed by Andrew. [6/16/2016 11:04:34 PM], Rated good by Andrew.
Given the sequence 2, 6, 18, 54, ..., which expression shown would give the fifteenth term?
Question
Updated 6/24/2016 5:17:08 PM
Given the sequence 2,6,18,54.... 2*3^14 would give the fifteenth term.
Th common ratio = 54/18 = 3,
15th term = 2*3(15-1) = 2*3^14
Confirmed by Andrew. [6/24/2016 8:55:31 PM]
Evaluate the following expression. (-6)-2 -36 -1/36 1/36 36
Weegy: (-6)^-2 = 1/(-6)^2 = 1/36 User: Find the common ratio for the following sequence. 27, 9, 3, 1, ... (More)
Question
Updated 6/18/2016 7:32:34 AM
The common ratio for the following sequence 27, 9, 3, 1, ... is 1/3.
The common ratio = 9/27 = 3/9 = 1/3
Confirmed by jeifunk [6/18/2016 7:36:05 AM]
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