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2 years ago

Lena’s guest house is 15 m long and 12 m wide. How long is the diagonal of the house?

2 answers:

5 0

Answer : 19.21m

(split the house into 2 right angle triangles)
(using pythagoras - a^2+b^2+c^2)

15^2 + 12^2 = d^2
225 + 144 = d^2
369=d^2
d=(square root of 369)
d=19.2094
which rounds to 19.21

Georgia [21]2 years ago

3 0

Lena’s guest house is 8 m long

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taurus [48]

Answer:

x = 0

Step-by-step explanation:

First we set up our equation. From the picture we can see that:

11 + x + 1 = 2x + 12

Now we can gather our like terms:

x + 12 = 2x + 12

Lets subtract x from both sides to isolate the x on the left:

12 = x + 12

Next we subtract 12 from both sides

x = 0

Check the answer

11 + 0 + 1 = 2(0) + 12

12 = 0 + 12

12 = 12

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Step-by-step explanation:

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3 years ago

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shepuryov [24]

Answer:

The two odd numbers are 15 and 17

Step-by-step explanation:

Given

Let the odd numbers be represented with x and y

Let x be the greater number

$x + 5y = 92$

Required

Find x and y

Since x and y are consecutive odd numbers and x is greater, then

$x = y + 2$

Substitute y + 2 for x in $x + 5y = 92$

$y + 2 + 5y = 92$

Collect Like Terms

$y + 5y = 92 - 2$

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Divide both sides by 6

$\frac{6y}{6} = \frac{90}{6}$

$y = \frac{90}{6}$

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Substitute 15 for y in $x = y + 2$

$x = 15 + 2$

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Hence; the two odd numbers are 15 and 17

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2 years ago

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MissTica

Answer:

It's D or 1/7^2

$\frac{1}{7^{2} }$

Step-by-step explanation:

They both equal 1/49

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3 years ago