Two beauticians, lydia and jackie, are working on your hair. lydia can complete the work in 2 hours, while jackie can complete the work in 1 hour. how many hours do the beauticians take if they work together?
the choices are:
- 1/2
- 3/2
- 2/3
- 4/3

5x+10 is the correct one

hope this

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x