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500g of an item costs $12. Use the unitary method to find the equivalent cost of 320g. a Find the cost of 100g for each price. b Which size can is sold at a cheaper rate?
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500g of an item costs $12. Use the unitary method to find the equivalent cost of 320g.

a Find the cost of 100g for each price.
b Which size can is sold at a cheaper rate?

User Athira Reddy
by
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1 Answer

3 votes
a) 500g=$12 -> 100g=12:5 100g=$2,40
20g=2,40:5=$0,58
320g=3x2,40+0,58
320g=7,20+0,58
320g=7,78$
User Gaiazov
by
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