Answer:
y =
x²
Step-by-step explanation:
Given that y and x² are directly proportional then the equation relating them is
y = kx² ← k is the constant of proportion
When x = 2
y = k × 2² = 4k
When x = 5
y = k × 5² = 25k
Then
25k - 4k = 20 ( difference between values is 20 )
21k = 20 ( divide both sides by 21 )
k = 
y =
x² ← equation of proportion
Answer:
Three
Step-by-step explanation:
The perfect cubes between 2 to 200 are

Hence, there are only three perfect cubes 27, 64 and 125 between 2 to 200.
Answer:
6 bottles of juice
Step-by-step explanation:
1. find the total amount of juice needed (number of students multiplied by the amount of juice): 48*8 = 384
2. find the number of bottles needed (total amount of juice divided by amount in each bottle): 384/64 = 6
Answer:
The answer is 2. 2 is the only number that can't change. There is no x or ^.
Answer
where is the pdf?
Step-by-step explanation: