Farzain99 Farzain99

30-06-2016
Mathematics

contestada

Given that y is inversely proportional to x, and y = 5 when x = 7, find the value of x when y = 70

Respuesta :

captainb4mf captainb4mf

30-06-2016

5/7 = 70/X

5X= 490

X=98

Answer Link

unidonuthorse unidonuthorse

30-06-2016

x:y=7:5
7/5=x/70 (multiply both sides by 5)
7=5x/70 (multiply both sides by 70)
490=5x (divide both sides by 5)
98=x

Answer Link

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