Using a new lawn mower, abby can mow the lawn in 2 hours. her sister carla used an older lawn mower and takes 3 hours to mow the same lawn. how long will it take them if they work together?

So rates are the lower number of a fraction. 

So it would be:  Then cross muitply. 

2x + 3x = 6

5x=6 

x= 

Do the math. she originally had 50 dollars on her gift card and she had 12 dollars left on her gift card after she finished her shopping spree. if you subtract 50 minus 12 you get thirty eight dollars as your answer. so therefore, ciara spent 38 dollars total o

Yes, that is the correct formula. to solve this problem given the number of years, plug in the number of years for t and plug the whole thing into the