The variables y and x^2 are directly
1 answer:
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
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Answer:
4
Step-by-step explanation:
Lets make be the ? in the equation.
That becomes ( x 3) - 3 = 15.
First you have to add 3 on both sides. After doing that it gets to ( x 3) = 15 - 3.
Then you simplify it to 3 = 12.
Now you divide 3 on both sides. That gets to = 4 after doing it.
Hope this helped! If not, please let me know! <3
Answer: There are 6 sections of of rope Mario can cut from the rope .
Step-by-step explanation:
Since we have given that
Length of the rope for the tent = 7 feet
As we know that
Length of rope is used to tie a tarp on top of the tent = 34.5 inches
Remaining length of rope is given by
According to question, the remaining rope should be cut into
So, Number of sections of rope Mario can cut from the rope is given by
Hence, there are 6 sections of rope Mario can cut from the rope .