destiny151 destiny151

24-03-2016
Mathematics

contestada

the students are selling cookies at a school fair.
sara is selling 3 chocolate chip cookies for $2.49 .

a)if you wanted to buy one cookie from Sara how much would it cost ?

b) how much would it cost to buy20 of Sara's cookies ?
show your work and explain you reasoning .

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Аноним Аноним

24-03-2016

a)
3 chocolate chip cookies - $2.49 .
So 1 chocolate chip cookies costs 2.49/3=$0.83
b)
1 chocolate chip cookie costs $0.83
20 chocolate chip cookies cost 0.83*20=$16.6

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