This is esay to do when you realize the the speed of mowing is addtive. This is if John mows at 1 lawn / (2/3) hour and Gerge mows at 1 lawn / 1hour, the total speed of mowing is:
1 / (2/3) + 1 = 3/2 + 1 = 5/2
=> 5/2 of lawn per hour
Now, the time is calcualted as the amount of lawn divided by the speed:
1 lawn / (5/2 lawn/hour) = 2/5 hour.
Answer: 2/5 of an hour.
<span>We have to find how much is the value of 2 in one number greater than the same value in another number. In the number 2,783 the value 2 represents 2,000 and in the number 7,283 the value 2 represents 200. So : 2,000 : 200 = 10. Answer: The value 2 in 2,783 is 10 times the value of 2 in 7,283.</span>
Answer:
Step-by-step explanation: Lucy is correct because all of the squares are filled, and therefore instead of 1 square filled, 8 are, this is why lucy <em>is</em> correct :)
Answer:
61 yeas old
Step-by-step explanation:
180 is dividable by 3 evenly into 60. If you remove 1 from one of the 60's and add it to another 60, the order is now 59,60,61. So the oldest friend is 61 years old
Answer:
yes. because the price is 3 times the number of pens
Step-by-step explanation:
2*3=6
4*3=12
5*3=15
8*3=24
