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4 years ago

Mhanifa please help this is due asap

Mathematics

1 answer:

Vsevolod [243]4 years ago

3 0

Answer:

x/ 6 = 4/8 ⇒ x = 3
y/10 = 4/8 ⇒ y = 5

x / 12 = 10 / 15
x = 12*2/3
x = 8

x/ (x + 2) = 5/6
6x = 5x + 10
x = 10

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What equation is equivalent to 11 = (15 -6r) + 2r?

OLEGan [10]

Answer:

11 = (15 -6r) + 2r

11= 15-6r+2r

11=15-4r

4=4r

r=1

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3 years ago

Find the missing lengths:<br> LO=5 and OK=4, find OH and KH.

hodyreva [135]

Answer:

The length of KH is 6 units and OH is 6.3 units.

Step-by-step explanation:

Given the figure with lengths LO=5 and OK=4. we have to find the length of OH and KH.

In ΔLOH

By Pythagoras theorem

$LH^2=LO^2+OH^2\\\\LH^2=5^2+OH^2$ → (1)

In ΔKOH,

$KH^2=OH^2+OK^2\\\\KH^2=OH^2+4^2$ → (2)

In ΔKHL,

$KL^2=LH^2+KH^2$

Using eq (1) and (2), we get

$KL^2=5^2+OH^2+OH^2+4^2$

$9^2=25+2OH^2+16$

⇒ $2OH^2=81-25-16=40$

⇒ $OH=\sqrt{20}=6.324\sim6.3units.$

Put the above value in eq 2, we get

$KH^2=20+4^2=36$

⇒ KH=6 units.

8 0

4 years ago

Read 2 more answers

What is 13 - 4x = 1 - x

JulsSmile [24]

13-4x=1-x
13=4x+x=1-x+x
13-3x=1
13-1-3x=1-1
12-3x=0
12=3x
12/3=3x/3
4=x
Therefore, x=4

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4 years ago

How much does 5 pounds for $2.49 equal

Serga [27]

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4 years ago

Solve 5p(2p - 3)(p + 7) = 0.<br> p=___, p=____, p=_____

Luba_88 [7]

Answer:

5p(2p-3)(p+7)=0

10p-15 p +7 =0

10p+p=0+15-7

11p =8

11p=8

p=8/11

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3 years ago