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3 years ago

Please help: 3x+10=-5. What is x?

Mathematics

2 answers:

PIT_PIT [208]3 years ago

4 0

Subtract 10 from both sides
3x + (10-10) = -10 - 5
3x = -10 - 5
3x = -15
Divide both sides by 3
3x/3 = -15/3
X = -5

Rudiy273 years ago

3 0

Answer:

-5

Step-by-step explanation:

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2 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

A box with a square base and no top is to be made from a square piece of carboard by cutting 7 in. squares from each corner and

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Answer:

The size of the cardboard should be $26 in\ by\ 26in$

Step-by-step explanation:

The diagram for this question is shown on the first uploaded image

The volume of the box is $V = 2527 \ in ^3$

The length and the Width of the card is

L = W = Z

From the question we are told that 7 in squares were cut from each corner

So the length and the width of the box would be

L = W = (Z - 7)

And the height would be H = 7 in

Mathematically the volume of the box can be represented as

$V = Length\ of\ bx * Width\ of\ box * Height\ of\ box$

So the Volume would be

$V = (Z-7)(Z-7) * 7$

Substituting values

$(Z-7) ^2 = \frac{2527}{7}$

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$(Z-7) ^2 = 19^2$

=> $Z - 7 = 19$

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2 years ago

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