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xz_007 [3.2K]
2 years ago
8

David Egil and frances share money in the ratio 2:7:9 Egil gets £85 more than David work out how much they each get ?

Mathematics
1 answer:
Leni [432]2 years ago
8 0

Answer:

David gets £34, Egil gets £119 and Frances gets £153.

Step-by-step explanation:

Let the amount of money David gets be 2x, Egil be 7x and Frances be 9x.

7x = 2x + 85

7x - 2x = 85

5x = 85

x = 85 ÷ 5

x = 17

David (2x) = 2 × £17

                 = £34

Egil (7x) = 7 × £17

             = £119

Frances (9x) = 9 × £17

                     = £153

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3 years ago
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Answer:

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3 years ago
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Hope this helps!
8 0
3 years ago
A/ab-bsquare + b/ab-asquare?​
lord [1]

Answer:

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Step-by-step explanation:

The given expression is :

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It can be solved as follows :

\dfrac{a}{ab-b^2}+\dfrac{b}{ab-a^2}=\dfrac{a}{b(a-b)}+\dfrac{b}{a(b-a)}\\\\=\dfrac{a}{b(a-b)}+\dfrac{b}{-a(-b+a)}\\\\=\dfrac{1}{a-b}(\dfrac{a}{b}-\dfrac{b}{a})\\\\=\dfrac{a^2-b^2}{ab(a-b)}\\\\=\dfrac{(a-b)(a+b)}{ab(a-b)}\\\\=\dfrac{(a+b)}{ab}

So, the solution of the given expression is equal to \dfrac{(a+b)}{ab}.

7 0
3 years ago
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Andreas93 [3]

Answer:

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Step-by-step explanation:

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1-.80=.20

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3 years ago
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