The scale of a map uses 10 cm for 30 km. How many centimeters does it use for 9 km? +
1 answer:
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Answer:
A. 31/100
Step-by-step explanation:
Change 3/10 to hundreds:
3/10 × 10/10 = 30/100
The denominator (the bottom number) must be 100.
61 - 30 is 31.
The missing number is 31/100. See image.
