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mestny [16]
3 years ago
5

Alina has just recieved 3 video games for her birthday to add to her existing 12 video games. A week later she went to the thrif

t store and doubled her video games. Another week she bought 5 more games what's the numerical expression for the total amount of video games alina has now
Mathematics
1 answer:
Papessa [141]3 years ago
3 0
Let the existing no. of video games she had be x,
then 
(3+x)+2x+5

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Answer:

18.18 miles.

Step-by-step explanation:

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8 0
3 years ago
Anyone know how to do area or volume? Any help will do! thanks
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Answer:

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Step-by-step explanation:

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To find the volume of a 3d figure, we must multiply the length, width, and the height. Therefore we multiply (x)(x+6)(x+2)= x^{3} + 8x^{2} + 12x. Simplify this equation and we will get x(x+6)(x+2) for the formula to find the volume of the 3D figure.

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To find the area of a 2D figure, we must multiply length x height. Therefore, we multiply the equations (x+6)(x+2)= x^{2} + 2x + 6x +12 to get a final answer of x^{2} +8x +12.  This will be the formula when you find the area of the 2D figure in question.

7 0
1 year ago
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Alisiya [41]
(x^2-3x+2)-1(3x^2-5x-1)=
x^2-3x+2-3x^2+5x+1=
x^2-3x^2-3x+5x+2+1=
-2x^2+2x+3
4 0
3 years ago
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Step-by-step explanation:

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Step-by-step explanation:

decrease value is 1353

value 31,647

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3 years ago
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