namany3818 namany3818

10-02-2022
Mathematics

contestada

Andy, ben and Cathy have £177 between them. Cathy has 3 times as much as ben. andy has £12 more than ben

Respuesta :

angelinasarumova angelinasarumova

10-02-2022

Andy: $45
Ben: $33
Cathy: $99

a+b+c=177
c=3b
a=b+12
b+12+b+3b=177
5b+12=177
-12 -12
-----------------
5b=165
---- -----
5 5

b=33

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