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Solnce55 [7]
3 years ago
9

Ayúdenme con estos problemas :(

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
4 0
En la primera tiñes que poner un tres en la parte de abajo y subir 5 para ariba y as lo mismo con los demás pero con los números que te ensaña espero esto te ayudo
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3( 2x - 9) + 15 = 60
GarryVolchara [31]

Answer:One solution was found : x = 12. Rearrange: Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the ...

Step-by-step explanation:

8 0
3 years ago
What is the common ratio of the geometric sequence below? -5, -10, -20, -40....
const2013 [10]

Answer:

2

Step-by-step explanation:

Between each term you are multiplying the previous term by 2, making 2 the common ration of the sequence.

8 0
3 years ago
A cooler contains 5 bottle of lemonade, 4 bottles of water, and 3 bottles of juice. Each type is equally likely to be chosen. Ba
lord [1]
I think the answer is 4

5 0
3 years ago
The area of a room is 600 square feet. The length is (x + 5) feet and the width is (x + 4) feet. Find the dimensions of the room
tangare [24]
I'm going to assume that the room is a rectangle.

The area of a rectangle is A = lw, where l=length of the rectangle and w=width of the rectangle. 

You're given that the length, l = (x+5)ft and the width, w = (x+4)ft. You're also told that the area, A = 600 sq. ft. Plug these values into the equation for the area of a rectangle and FOIL to multiply the two factors:
A = lw\\
600 = (x+5)(x+4)\\
600 =  x^{2} + 9x + 20


Now subtract 600 from both sides to get a quadratic equation that's equal to zero. That way you can factor the quadratic to find the roots/solutions of your equation. One of the solutions is the value of x that you would use to find the dimensions of the room:
600 = x^{2} + 9x + 20\\
x^{2} + 9x - 580 = 0\\
(x + 29)(x - 20) = 0\\
x + 29 = 0, \:\: x - 20 = 0\\
x = -29, x = 20

Now you know that x could be -29 or 20. For dimensions, the value of x must give you a positive value for length and width. That means x can only be 20. Plugging x=20 into your equations for the length and width, you get:
Length = x + 5 = 20 + 5 = 25 ft.
Width = x + 4 = 20 + 4 = 24 ft.

The dimensions of your room are 25ft (length) by 24ft (width).
8 0
3 years ago
Read 2 more answers
Which table best classifies the following numbers as rational and irrational?
g100num [7]
The rational negative 6 over 5.,3.5,0 point 5 bar,. square root of 4.
Hope this helps :)
4 0
3 years ago
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