1.(R) represent the unknown 2.(D) decided what mathematical operation should be used 3.(A) apply the mathematical operation should be used. 4.(V) verify your answer... Peter can mow the lawn in 50 minutes and John can mow the lawn in 40 minutes. How long will it take for them to mow the lawn together? Step by step... Pls help
Answers & Comments
Answer:
1. 50 minutes
40 minutes
2. Addition
3. 50+40=N
4. 90 minutes