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3 years ago

Increase £680 by 15%

Mathematics

2 answers:

Ivenika [448]3 years ago

8 0

A) multiply 680 x 15 = 10,200
b) divide 10,200 by 100 = 102
c) Add 680 + 102 = <span> £</span>782

Artist 52 [7]3 years ago

5 0

$\pounds \ 680 \cdot 15\ \% = \pounds \ 680 \cdot 0.15=\pounds \ 102\\\\\pounds \ 680 + \pounds \ 102 = \pounds \ 782$

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I believe there is no such AP...

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so that

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$a_n=a_1+(n-1)d$

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$n$ has to be an integer, which means there are 4 possible cases.

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$\displaystyle\sum_{k=1}^2(8+21(k-1))=37\neq123$

Case 2: $n-1=21$ and $d=1$ . But

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Case 4: $n-1=7$ and $d=3$ . But

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3 years ago

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Marrrta [24]

Answer:

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Step-by-step explanation:

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$\frac{\frac{h+c}{ch}}{\frac{1}{c^2}-\frac{1}{r^2}}$

Combine the bottom, too.

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Apply the fraction rule

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Cancel

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