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1 year ago

X,y,z and l are proportional quantites, prove that : y–x/x = l–z/z

Mathematics

1 answer:

Vera_Pavlovna [14]1 year ago

7 0

Answer:

y=24

Step-by-step explanation:

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the answer is true.

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2 years ago

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What is the solution to this inequality?

madam [21]

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Step-by-step explanation:

x - 7 > -6

x > -6 + 7

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The area of a circle is 28.26 square centimeters. What is its diameter (use 3.14 for ð)?

horsena [70]

Area for circle is πr² so πr² =28.26 and we can sub 3.14 as pi
3.14*r²=28.26 we can divide by 3.14 to get r² on it's own
r²=28.26/3.14
then we root both sides to get r on it's own
28.26/3.14=9 √9=3
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2 years ago

Colin has a pad with x pieces of paper on it. For his first class, he wrote on 5 fewer than half of the pieces of paper in the p

PIT_PIT [208]

Answer:

Colin has 8 sheets left for his third class.

Step-by-step explanation:

Given that:

Total Number of pieces of papers = $x$

Number of pieces of papers used for 1st class = 5 fewer than half of the pieces in the pad

Writing the equation:

$\text{Number of pieces of papers used for 1st class =} \dfrac{x}{2} -5 ...... (1)$

Also, Given that number of pieces of papers used for the 2nd class are 2 more than that of papers used in the 1st class.

$\text{Number of pieces of papers used for 2nd class =} \dfrac{x}{2} -5+2 = \dfrac{x}2 -3 ...... (2)$

Now, number of pieces of papers left for the third class = Total number of pieces of papers in the pad - Number of pieces of papers used in the first class - Number of pieces of papers used in the first class

$\text{number of pieces of papers left for the third class = }x-(\dfrac{x}{2}-5)-(\dfrac{x}{2}-3)\\\Rightarrow x-\dfrac{x}2-\dfrac{x}2+5+3\\\Rightarrow x-x+5+3\\\Rightarrow 8$

So, the answer is:

Colin has 8 sheets left for his third class.

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2 years ago

What is the value of x?

IrinaK [193]

Answer:

Step-by-step explanation:

104-77=27

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2 years ago

X,y,z and l are proportional quantites, prove that : y–x/x = l–z/z​

X,y,z and l are proportional quantites, prove that : y–x/x = l–z/z