3
7÷10 × x equals to 10x = 10÷7. now what we have to do ? Now we have to multiply 2÷5 by 10÷7 which gives 4÷7, so Walter takes of an hour to mow of an acre of lawn and At this rate, 4/7 acres he will mow in an hour!!
Added 9/25/2023 9:53:02 AM
This answer has been confirmed as correct and helpful.