Question

James is earning money to buy a bicycle for $100. For each dollar James earns, his mother gives him $1. So far he has earned $14 mowing lawns and $7 wash cars. How much more must James earn in order to but the bike??

Answer 1

$58

Explanation:

$14*2=$28 as her mum gives another dollar for each dollar he earns

$7*2=$14 as her mum gives another dollar for each dollar he earns

then 28 + 14 = 42

100 - 42=$58

Answer 2

James needs to earn 78 more dollars.

Explanation:

If you add up all of the money James has earned, (1 + 7 + 14), it equals 22. If you subtract 22 from 100, it equals 78. Therefore James needs to earn 78 more dollars.