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gracebuffum
17.08.2019 •
Mathematics
Part a: estima-te the total cost.
part b: what is the exact cost?
part c: if the family pays $25,what is the exact amount of change they should receive?
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Ответ:
Step-by-step explanation:
Part A:
Total cost for 2 adults at $5.5 each and 3 students at $4.25 each
= 2*5.5 + 3*4.25
~= 12 + 12
= $24
Part B:
Exact cost = 11 + 12.75
= $23.75
Part C: If the family pays $25,
the exact change = 25 - 23.75
= $1.25
Ответ:
The third one
Step-by-step explanation:
0.28z being next to each other means multipy and the product would be 13.