He isn't right. He needs 1/6 cup of olive oil since 2/3 times 1/4 = 1/6
60 times 9 equals 54
54/180 = x/30
Solve for x to get 9
The slide is 9 m long
General Idea:
In any right triangle,
1. The altitude to the hypotenuse is the geometric mean between the segments into which is separates the hypotenuse.
2. Each leg is a geometric mean of the hypotenuse and the segment of the hypotenuse adjacent of the leg.
Applying the concept:
Step 1: We need to label the given diagram and set up a proportion by comparing the similar triangles as provided in attached figure.
Setting up the proportion, we get...

Conclusion:

1.5 is the correct answer :)
Answer:
d.5/6
Step-by-step explanation:
2/3÷4/5
2/3×5/4
5/6