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pashok25 [27]
3 years ago
6

ONLY ANSWER IF YOU KNOW IT CORRECT GETS BRAINLIEST! :))

Mathematics
2 answers:
Wittaler [7]3 years ago
8 0

Answer:

7

Step-by-step explanation:

Area is found by multiplying the length and the width.

Let's think about the factors of 56.

The only <em>whole number pairs</em> that can be multiplied to get 56 are

1 x 56, 2 x 28, 4 x 14, and 7 x 8.

There's only one pair where the width is less than the length, 7 x 8.

The width is always the smaller number of the two, so the width must be 7.

bekas [8.4K]3 years ago
4 0

Answer:

7units

Step-by-step explanation:

Because 7 times 8=56 and the question said one unit less so that's why its 7units

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Please hurry; Toni's grandparents bought a house in 1975 for $28, 000. Every decade, the value of the house doubles. What will b
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6 0
3 years ago
Read 2 more answers
There are only green pens and red pens in a box. there are 3 more red pens than green pens in the box. sheila is going to take a
e-lub [12.9K]

Answer: 6 or 9

Step-by-step explanation:

Given the following :

Let the number of green pens = x

Number of red pens = x + 3

Probability of picking same color = 17/35

Taking two pens at random; probability of picking two pens of same color.

Probability of picking red on first pick then red on second pick ; or picking blue on first pick then blue on second pick

Probability = (Required outcome / Total possible outcomes)

Total number of pens = x + x + 3 = 2x + 3

Probability of picking red then red:

P(red first) = (x+3)/2x+3

P(red second) = x+3-1 / 2x+3-1 = (x+2)/2x+2)

Therefore, probability of red then red =

(x+3)/(2x+3) × (x+2)/2x+2)

= (x+3)(x+2) / (2x+3)(2x+2)

Probability of green then green:

P(first green) = x/(2x+3)

P(second green) = (x-1) / (2x+3-1) = (x-1) / (2x+2)

P(green then green) = x(x-1)/(2x+3)(2x+2)

Therefore,

[(x+3)(x+2) / (2x+3)(2x+2)] + [x(x-1)/(2x+3)(2x+2)] = 17/35

(x+3)(x+2)+x(x-1) / (2x+3)(2x+2) = 17/35

Cross multiply :

35(x+3)(x+2)+x(x-1) = 17(2x+3)(2x+2)

35(2x^2 + 4x + 6) = 17(4x^2 + 10x + 6)

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70x^2 - 68x^2 + 140x - 170x + 210 - 102 = 0

2x^2 - 30x + 108 = 0

Now we have a quadratic equation which can be factoeized used using any known factorization method.

Factorizing this, we get

(x-6) = 0 or (x-9) = 0

x = 6 or x = 9

6 0
3 years ago
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