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finlep [7]
3 years ago
5

L varies directly with the square of Z. L is 12 when Z is 2. Find the value of L when Z is 4.

Mathematics
1 answer:
kow [346]3 years ago
7 0

Answer:

L = 48

Step-by-step explanation:

Given that L varies directly with Z² , then the equation relating them is

L = kZ² ← k is the constant of variation

To find k use the condition L = 12 when Z = 2 , then

12 = k × 2² = 4k ( divide both sides by 4 )

3 = k

L = 3Z² ← equation of variation

When Z = 4 , then

L = 3 × 4² = 3 × 16 = 48

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kolbaska11 [484]

10/3 bran flakes can make a dozen muffins

A recipe requires 2 1/2 cups of bran flakes

The recipe can make 9 muffins

Let's calculate the amount of bran flakes it will take to make 1 muffin

5/2 = 9

x= 1

cross multiply

9x= 5/2

x= 5/18

A dozen is 12, the number of bran flakes to make a dozen can be calculated as follows

5/18= 1

y= 12

cross multiply

y= 5/18 × 12

y= 10/3

Hence it will take 10/3 to make a dozen muffins

Read more here

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1 year ago
What is 12 is _____ % of 200 <br><br> If you get the answer, explain or show how you got it
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Step-by-step explanation:


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3 years ago
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MA_775_DIABLO [31]

Answer:

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Answer:

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