tiaholmes31
14.05.2021 •
Mathematics
The ratio of Roger's age to his son's age is 7:3. If the sum of their ages is 60, then how old is Roger's son?
A. 17 years old
B. 18 years old
C. 19 years old
D. 20 years old
E. 21 years old
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Ответ:
1 cm : 5km
4 cm : 5 x 4 km
4 cm : 20 km
The city is 20km apart.
Step-by-step explanation: