jans age is 3 times pams age sue is twice as old as pam the sum of their age is 30 how old is each girl
i need to know how old each girl is jan is 3 times pams age and sue is twice as old as pam the sum of their ages is 30
j = jan
s = sue
p = pam
j = 3p call this eq1
s=2p ← eq2
j + p + s = 30 ← eq3
substitute eq1,eq2 to eq3
3p + p + 2p = 30
6p = 30
pam age = 5
in eq 1
j = 3p
j = 3(5)
j an age = 15
in eq2
s = 2p
s = 2(5)
Sue age =10