if they work together it takes 12/7 hours to mow one lawn
What is the arithmetic operation?
The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or more quantities. Included in them is the study of numbers, especially the order of operations, which is important for all other areas of mathematics, including algebra, data management, and geometry. The rules of arithmetic operations are required in order to answer the problem.
jake can mow a lawn in 3 hours.
kellie can mow a lawn in 4 hours.
1/3 lawns can be cut per hour by Jake.
kellie has a 1/4 hour cutting rate for lawns.
They can cut 7/12 lawns per hour by working together at a rate of 1/3 + 1/4.
One lawn can be mowed in 12/7 hours at a rate of 7/12 lawns per hour.
Hence if they work together it takes 12/7 hours to mow one lawn.
Learn more about arithmetic, by the following link.
https://brainly.com/question/13181427
#SPJ4
