choypuma choypuma
  • 13-01-2019
  • Mathematics
contestada

The ratio of boys to girls at a summer camp 3:5. If there are 27 boys,how many girls are there ?

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lifestyle743
lifestyle743 lifestyle743
  • 13-01-2019
maybe 45 because 3×9=27 and 5×9=45
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gmany
gmany gmany
  • 13-01-2019

[tex]g-number\ of\ girls\\\\3:5=\dfrac{3}{5}\\\\The\ equation:\\\\\dfrac{27}{g}=\dfrac{3}{5}\qquad\text{cross multiply}\\\\3g=(27)(5)\qquad\text{divide both sides by 3}\\\\g=(9)(5)\\\\\boxed{g=45}\\\\Answer:\ \boxed{45\ girls}[/tex]

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