Answer:
510cm
Step-by-step explanation:
20cm25
2
1
Multiply 25 and 2 to get 50.
20cm×(
50+1
)
Add 50 and 1 to get 51.
51
Express 20×(
) as a single fraction.
20×51
cm
Multiply 20 and 51 to get 1020.
1020
Divide 1020 by 2 to get 510.
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Answers & Comments
Answer:
510cm
Step-by-step explanation:
20cm25
2
1
Multiply 25 and 2 to get 50.
20cm×(
2
50+1
)
Add 50 and 1 to get 51.
20cm×(
2
51
)
Express 20×(
2
51
) as a single fraction.
2
20×51
cm
Multiply 20 and 51 to get 1020.
2
1020
cm
Divide 1020 by 2 to get 510.
510cm