Answer:
x = 15
Step-by-step explanation:
given that y varies directly with x
mathematically we can express this as
y = k x , where k is a constant
step 1: find k
given x = 3 and y = 21
y = k x
21 = k (3)
k = 7
hence the equation becomes
y = 7 x
when y = 105,
105 = 7x
x = 105 / 7 = 15
Answer:
i would know if this was more detailed
Step-by-step explanation:
Answer:
22 students
Step-by-step explanation:
218 students - 20 students = 198 students on buses
198 students / 9 buses = 22 students per bus
Answer:

Step-by-step explanation:
Evaluate cos(tan^-1 0)

We know that tan(0)=0
tan (0 degree)=0

Replace it in our problem


At 0 degree the cos value is 1
So co(0)=1
