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irakobra [83]
3 years ago
7

Please helpppp tyy :)

Mathematics
2 answers:
GaryK [48]3 years ago
8 0

Answer:

5x + 3

Step-by-step explanation:

igor_vitrenko [27]3 years ago
7 0
The second option because the key word is “product” which means multiplication:)
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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
I need some help with 12 please
V125BC [204]

Answer:

its C

Step-by-step explanation:

thank me later

5 0
2 years ago
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I try to solve it but I didn't get any of the choices <br> Thank you for helping me
Natasha2012 [34]
The answer is 7. You can look at it like this. The two triangles are similar and the larger one's sides are twice the size of the smaller one's. So then we know GF is twice the size of JK.
2(2y+5)=5y+3
4y+10=5y+3
y=7
8 0
3 years ago
What is the equation of the line that passes through the point (-3,2) and has a slope of -2/3
Nookie1986 [14]

Answer:

Y=-2/3x+0

This is the answer I found

8 0
3 years ago
Need help ASAP
valentinak56 [21]

Answer:

b

Step-by-step explanation:

700x.10=630

630x.05=31.5

630-31.5=598.50

7 0
3 years ago
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