3 years ago

The box is 12 inches long 8 inches wide and 3 inches high . what is the surface area

Mathematics

2 answers:

vivado [14]3 years ago

6 0

to find surface area do the length times the width.

so for this question we would do 3x8=24

tatuchka [14]3 years ago

6 0

Answer:

Step-by-step explanation:

to get the surface area you need to run this equation (L*w)*2+(W*H)*2+(L*H)*2

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Lilit [14]

Your answer is 110/119

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That number can't be simplified, so that is your final answer.

Best of luck,

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timama [110]

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Find the substitution 2x+3y=-5 and y=-x+5

tatuchka [14]

Answer: x = 20, y = -15

Step-by-step explanation:

Since we already know that $y=-x+5$ , we can just substitute in that value of y into the other equation:

$2x+3y=-5\\2x+3(-x+5)=-5\\2x-3x+15=-5\\-x=-5-15\\-x=-20\\x=20$

with the value of x, we can find the value of y:

$y=-x+5=-20+5=-15$

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