3 years ago

Can someone please answer this for me???

1 answer:

7 0

$12.60 after 9 years started w/ $8

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goldfiish [28.3K]

1 is 11 over nine the last one and the second one is 11

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kap26 [50]

69% .................

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4 years ago

Ksenya-84 [330]

Answer:

When x = 1 and z = 4, $y=\frac{80}{9}$

Step-by-step explanation:

The variation described in the problem can be written using a constant of proportionality "b" as:

$y=b\,\,x\,\,z^2$

The other piece of information is that when x = 5 and z = 1, then y gives 25/9. So we use this info to find the constant "b":

$y=b\,\,x\,\,z^2\\\frac{25}{9} =b\,\,(5)\,\,(1)^2\\\frac{25}{9} =b\,\,(5)\\b=\frac{5}{9}$

Knowing this constant, we can find the value of y when x=1 and z=4 as:

$y=b\,\,x\,\,z^2\\y=\frac{5}{9} \,\,x\,\,z^2\\y=\frac{5}{9} \,\,(1)\,\,(4)^2\\y=\frac{5*16}{9}\\y=\frac{80}{9}$

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3 years ago

juin [17]

Step-by-step explanation:

mean add upp all the numbers and divide by how many they are

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4 years ago

Fiesta28 [93]

9.42 I think its 9.42

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4 years ago