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3 years ago

The table is an example of joint variation. What is the missing value if the length is 5 meters?

Mathematics

2 answers:

Paha777 [63]3 years ago

4 0

Answer:

Step-by-step explanation:

Formula of joint variation : $z = kxy$

To Calculate k

Width(x)= 7

Height(y) = 12

Volume(z) = 420

Substitute the values in the formula

$420 = k(7)(12)$

$\frac{420}{7 \times 12} = k$

$5= k$

Now , to find the missing height

Substitute width = x = 15

Height = ?

Volume = z = 525

Substitute the values in the formula :

$525 = 5(15)y$

$\frac{525}{5 \times 15}= y$

$7= y$

So, the missing value is 7 .

lawyer [7]3 years ago

3 0

7 * 12 * 5 = 420
10 * 5 * 5 = 250
2 * 18 * 5 = 180
15 * 7 * 5 = 525

Answer
missing = 7

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