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3 years ago

PLEASE HELP!!!!!!!!!!!!!!

Mathematics

2 answers:

Andru [333]3 years ago

5 0

1) B

2) A

3) B

Hope this helps :)

Phoenix [80]3 years ago

4 0

1) B)0.05

2) C) 1,4,8,13

And I'm Not Sure About The Last One I Think It's C or D sorry!

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(D) 60.

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We are to find the number of stamps that Kaye had more than Alberto.

Let the number of stamps Kaye and Alberto has are 5x and 3x respectively.

Then, according to the given information, we have

$(5x-10):(3x+10)=7:5\\\\\Rightarrow \dfrac{5x-10}{3x+10}=\dfrac{7}{5}\\\\\Rightarrow 25x-50=21x+70\\\\\Rightarrow4x=120\\\\\Rightarrow x=\dfrac{120}{4}\\\\\Rightarrow x=30.$

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