akubro09ox59lq
akubro09ox59lq akubro09ox59lq
  • 01-10-2017
  • Mathematics
contestada

given the product of 2x+3y and 3y+2x is z.Find the value of y when x=3.2 and z=457.96

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EuniceJEJO
EuniceJEJO EuniceJEJO
  • 02-10-2017
           2x+3y·3y+2x=z
2(3.2)+3y·3y+2(3.2)=457.96
             6.4+9y+6.4=457.96
                   12.8+9y=457.96
                        -12.8=-12.8
                            9y=445.16
                             /9=/9
                              y=49.46222222
                              y=49.46
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