Of the 240 sandwiches Joanna makes 20% are tuna sandwiches and 40% are jam sandwiches, and the rest are egg salad sandwiches.How
many egg salad sandwiches does Joanna make?
1 answer:
240 = 100%
so 10% = 24 sandwiches
all - (tuna) - (jam) = egg
100% - 20% - 40% = 40%
40% = 10%*4
40% = 24*4 = 96
the answer is 96 egg salad sandwiches
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Hello,
Let's assume n the number searched.
nine less 3 times n is written 9-3n