belle03 belle03
  • 14-04-2016
  • Mathematics
contestada

13 is 40% of what number

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jhene01 jhene01
  • 14-04-2016
Its 32.5. How I got this answer is you would usually multiply 'that number' by 40%, but since we don't know it we divide 13 divided by 0.4(40% in decimal form) and that gives you 32.5. And to check your answer you do 32.5 multiplied by 0.4 to get 13. 
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apologiabiology
apologiabiology apologiabiology
  • 14-04-2016
translate
percent means parts out of 100 so 40%=40/100=0.4
'of' means multiply

13 is 40% of what
13=0.4 times what
divide both sides by 0.4
32.5=what

the number is 32.5
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