solve for x 3x - (1/2) = 2x + (7/4)

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Asked 9/12/2012 6:44:21 PM

Updated 12/9/2014 12:48:17 AM

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User: One number is 8 more than another number. If the sum of the smaller number and twice the larger number is 46, find the two numbers.

User: solve for x 3x - (1/2) = 2x + (7/4)

Weegy: x = 27/4
javedsarkar|Points 1015|

User: solve for x 2x + 3(4 - x) = 3x + 2

Weegy: Here's the solution:3x - 5 < 4 ; x < (4+5)/3 ; x < 3 Answer x< 3. [smile]
feurem|Points 1965|

User: solvel for x x2 - 3x - 4 = 0

Weegy: x2 - 3x - 7 = 0

x = 1/2 (3-sqrt(37))
x = 1/2 (3+sqrt(37))

User: solve for x: x2 - 3x - 4 = 0

Weegy: Here's the solution:3x - 5 < 4 ; x < (4+5)/3 ; x < 3 Answer x< 3. [smile]
feurem|Points 1965|

User: add: 9x4 -3x2 and 4x2+5

User: add: 9x4 -3x2

User: multiply (x3 - 6x2 + 3x - 1) ÷ (x - 5)

User: factpofactor 3x2 - 4x - 4

Weegy: (3x-1)(-2x-1)
mediatrix|Points 10|

User: factor 3x2 - 4x - 4

Weegy: It is: x = -7. [smile]
stan_r|Points 1332|

User: Maria bought 56 stamps at the post office. The stamps were 37 cents and 20 cents. If she paid $18 for the stamps, how many of each denomination did she buy?

Question

Asked 9/12/2012 6:44:21 PM

Updated 12/9/2014 12:48:17 AM

1 Answer/Comment

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yeswey

One number is 8 more than another number. Let x be one number, the other is x + 8. If the sum of the smaller number and twice the larger number is 46, then: x + 2(x + 8) = 46, x + 2x + 16 = 46, 3x = 46 - 16 = 30, x = 30/3 = 10. The two numbers are 10 and 18 respectively.

Added 12/9/2014 12:31:13 AM

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Confirmed by andrewpallarca [12/9/2014 6:45:33 AM]

yeswey

3x - (1/2) = 2x + (7/4)
3x - 2x = (7/4) + (1/2)
x = 9/4 = 2 1/4

Added 12/9/2014 12:32:30 AM

This answer has been confirmed as correct and helpful.

Confirmed by andrewpallarca [12/9/2014 6:46:40 AM]

yeswey

2x + 3(4 - x) = 3x + 2
2x + 12 - 3x = 3x + 2
-x + 12 = 3x + 2
-x - 3x = 2 - 12
-4x = -10
x = -10/-4 = 2.5

Added 12/9/2014 12:33:58 AM

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Confirmed by andrewpallarca [12/9/2014 6:47:06 AM]

yeswey

x^2 - 3x - 4 = 0
(x - 4)(x + 1) = 0
x = 4 or x = -1

Added 12/9/2014 12:35:26 AM

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Confirmed by andrewpallarca [12/9/2014 6:47:39 AM]

yeswey

(9x^4 - 3x^2) + (4x^2 + 5)
= 9x^4 - 3x^2 + 4x^2 + 5
= 9x^4 + x^2 + 5

Added 12/9/2014 12:39:38 AM

This answer has been confirmed as correct and helpful.

Confirmed by andrewpallarca [12/9/2014 6:48:29 AM]

yeswey

3x^2 - 4x - 4 = (x - 2)(3x + 2)

Added 12/9/2014 12:47:30 AM

This answer has been confirmed as correct and helpful.

Confirmed by andrewpallarca [12/9/2014 6:49:12 AM]

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A machine produces 158 items in 12 minutes. At the same rate, how many items will it produce in 8 hours?

Weegy: There are 5 lots of 12 minutes in an hour. 5 x 158 = 790 items per hour. 790 x 8 = 6320 items in 8 hours. User: Simplify 20 ÷ (32 + 4 - 23) Weegy: 23+23= 46 User: Find the length of the diagonal of a rectangle with 5 inch width and 7 inch length. (rounding answer to thousandths) Weegy: The length of the diagonal of a rectangle with 5 inch width and 7 inch length is 8.6 inches. User: The point (-4,-3) is in what quadrant of the rectangular coordinate system? Weegy: (1/2, -1.8) is in Quadrant IV. (More)

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Updated 12/9/2014 2:24:15 AM

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yeswey

20 ÷ (32 + 4 - 23) = 20 ÷ (36 - 23) = 20/13

Added 12/9/2014 2:20:02 AM

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yeswey

The point (-4,-3) is in quadrant 3 of the rectangular coordinate system.

Added 12/9/2014 2:24:15 AM

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