Triple 3 and then add double 8

Mathematics

2 answers:

Alexandra [31]3 years ago

8 0

6+6+6+8+8=31 that's the answer to your problem

svp [43]3 years ago

7 0

I'd have to disagree with RedstoneKing.

Triple 3 means 3 x 3.
Double 8 means 8 x 2
Add means +
Therefore,
(3 x 3) + (8 x 2) =
9 + 16 =
25

25 is the answer, i believe!

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Identify the factors of x2 + 16y2.

BabaBlast [244]

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3 0

3 years ago

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The area of a rectangular wall of a barn is 252 square feet. Its length is 10 feet longer than twice its width. Find the length

valentinak56 [21]

Answer: Length = 28 feet and width = 9 feet

Step-by-step explanation:

Let x = width of the wall.

Then, Length of the wall = 10+2x

Since , Area of rectangle = length x width

Then, as per given,

$252= (10+2x)x\\\\\Rightarrow\ 252=10x+2x^2\\\\\Rightarrow\ 2x^2+10x-252=0\\\\\Rightarrow\ x^2+5x-126=0\\\\\Rightarrow\ x^2+14x-9x-126=0\\\\\Rightarrow\ (x+14)-9(x+14)=0\\\\\Rightarrow\ (x+14)(x-9)=0\\\\\Rightarrow\ x=-14 \ or \ x= 9$