Kylie works part-time at a greenhouse. she spends 7 hours a week watering plants and 9 hours a week transplanting seedlings. she also spends 4 hours a week filling invoices. what percent of her time is spent watering plants?

She spends 35% of her time watering plants.

Hope that helped!

Add up the number of hours she works (7+4+9)

Divide the number of hours spent watering plants (7) by this number

Multiply this by 100 to get the percent of her time that she spends watering plants. 

My work: 
7+4+9= 20
20/7=2.85714286
2.85714286*100=285.714286

Given:

Y is the midpoint of XZ.

To prove:

Proof:

It is given that Y is the midpoint of XZ. It means Y divides the line segment XZ in two equal parts XY and YZ.

           ...(i)

Point Y lines on the segment XZ, so by segment addition theorem, we get

             

Divide both sides by 2.

Hence proved.