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2 years ago

7

0.5; MATH PROBLEM HERE!!,,,,,,,,,

1 answer:

spayn [35]2 years ago

7 0

It might be f but I’m getting a positive 6 instead of a negative

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A rectangular piece of metal is 15 in longer than it is wide. Squares with sides 3 in long are cut from the four corners and the

ziro4ka [17]

Answer:

The original dimensions of the piece of metal are

Length: 36 inches

Width: 21 inches

Step-by-step explanation:

Let

x ----> the original length pf the piece of metal

y ----> the original width pf the piece of metal

we know that

$x=y+15$ ----> equation A

The volume of the box is equal to

$V=LWH$

we have

$V=1,350\ in^3$

$L=(x-3-3)=(x-6)\ in\\W=(y-3-3)=(y-6)\ in$

$H=3\ in$

substitute in the formula of volume

$1,350=(x-6)(y-6)(3)$ ----> equation B

substitute equation A in equation B

$1,350=(y+15-6)(y-6)(3)$

solve for y

$450=(y+9)(y-6)$

$y^2-6y+9y-54=450\\y^2+3y-504=0$

Solve the quadratic equation by graphing

using a graphing tool

The solution is y=21

Find the value of x

$x=21+15=36$

therefore

The original dimensions of the piece of metal are

Length: 36 inches

Width: 21 inches

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2 years ago

28.74% of 676.87 to 2 decimal places pls help

gregori [183]

Answer:

the answer of this question is = 194.53

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3 years ago

Which is the equation of a line that has a slope of Negative two-thirds and passes through point (–3, –1)?

weqwewe [10]

Answer:

Y=2/3x+1

Step-by-step explanation:

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miv72 [106K]

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Step-by-step explanation:

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Triss [41]

Answer:3831367404

Step-by-step explanation:

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