keirruanrussell keirruanrussell

25-11-2016
Mathematics

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Jane addresses twice as many envelopes as Louis in the same amount of time. Together they address 240 envelopes each day .
How many envelopes does Jane address in one day ?

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apologiabiology apologiabiology

25-11-2016

j=2l
j+l=240
sub 2l for j
2l+l=240
3l=240
divide both sides by 3
l=80
sub
j=2l
j=2(80)
j=160

jane does 160 envelopes

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