Jonathan has a collection of 400 marbles. Blue makes up 17% of his collection,how many blue marbles does Jonathan have?

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20-04-2015
Mathematics

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Jonathan has a collection of 400 marbles. Blue makes up 17% of his collection,how many blue marbles does Jonathan have?

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apologiabiology apologiabiology · Answer 1 · 2015-04-20T06:34:35+02:00

apologiabiology apologiabiology

20-04-2015

so percent means parts out of 100 so 17%=17/100
400 marbles
17% of 400=blue
'of' can be translated to multiply
17%=17/100
17/100 ties 400=6800/100=68
he has 68 blue marbles

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