3 years ago

What is 1/2 + 1/4 =?????

Mathematics

1 answer:

dmitriy555 [2]3 years ago

4 0

Answer: 0.75

Step-by-step explanation:

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A rug is to be centered in a room so that the border around it is of a consistent width on all four sides. If the room is 10 ft

aleksley [76]

Answer:

The width of the border can be 9 feet or 3.5 feet.

Step-by-step explanation:

Let the width be x

Length of room = 10 feet

Breadth of room = 15 feet

Length of rug = 10-2x

Breadth of rug = 15-2x

Area of rug = $(10-2x)(15-2x)$

We are given that the area of the rug is 24 square feet.

So, $(10-2x)(15-2x)=24$ ---A

$150-20x-30x+4x^2=24$

$150-24-50x+4x^2=0$

$126-50x+4x^2=0$

$2(x-9)(2x-7)=0$

$x=9,\frac{7}{2}$

$x=9,3.5$

Substitute x =9 in A

$(10-2(9))(15-2(9))=24$

$24=24$

LHS = RHS

Substitute x = 3.5

$(10-2(3.5))(15-2(3.5))=24$

$24=24$

LHS = RHS

So, The width of the border can be 9 feet or 3.5 feet.

7 0

3 years ago

Show that parallelogram with its diagonals intersecting at 90° is rhombus.

34kurt

I do not have an answer for that, but you should try looking for that on google or yahoo answers.

8 0

3 years ago

Estimate each product 1/5 x 24

antoniya [11.8K]

Answer:

4.8

Step-by-step explanation:

Um, I'm not sure how to explain, but watch a khan academy video on it

3 0

3 years ago

2) When we divide ______ by 8 gives a quotient of 75 and a remainder of 3

Pani-rosa [81]

Answer:

603

Step-by-step explanation:

603/8

600/8 + 3/8 = 75, 3/8

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3 years ago

I’m stuck on all of these <br> :( any help would be very appreciated

dem82 [27]

Answer:

1. 8x^3+6x^2+7

Step-by-step explanation:

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3 years ago