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Marta_Voda [28]
3 years ago
8

Frances can complete 91 oil changes in 7 days.

Mathematics
2 answers:
baherus [9]3 years ago
8 0
91 / 7 = 13; 13 * 11 = (143 oil changes)
joja [24]3 years ago
5 0
Ratio problem:

91 changes = 7 days
-----------------   --------
          x            11 days

7x = 1001
x = 143
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