ani61
19.09.2021 •
Mathematics
R is the midpoint of HS, N is the midpoint of RS, and RN= 5 cm. What is the length of HS?
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Ответ:
20 cm
Step-by-step explanation:
If R is the midpoint of HS, and N is the midpoint of RS, then RN is 1/4 of HS. This means that RN 4 times is HS. so 5x4 20.
Ответ:
pages 10-30 have 2 digits each
so 9 pages have 1 and 21 pages have 2
9×1+21×2=9+42=51