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3 years ago

6

In a customer survey of 500 people, 200 indicated they would be buying a major appliance within the next month. 150 would buy a

cat and 25 said they would purchase both a major appliance and a car. How many will purchase neither? How many will purchase only a car?

1 answer:

tiny-mole [99]3 years ago

8 0

150 are buying a car, right? Or solid that say cat...

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Dmitriy789 [7]

Answer: 600 canned foods was the total.

Step-by-step explanation: We need to find out what‘s 100% of 480. Since 480 canned foods is 80%, we can divide 480 by 8 which gives us 60. Aka 60 canned foods = 10%. Now, we multiply 60 by 10 which gives us 600. Hope this helps!

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Elena L [17]

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3 years ago

Find an equation of variation where y varies jointly as x and the square of z, and where y=70, when x=21 and z=5.

Bezzdna [24]

Answer:

$y = 181.75xz^2$

Step-by-step explanation:

Given

y jointly varies to x and z^2

Required

Find the equation

We start by writing out the variation;

$y\ \alpha\ xz^2$

Write as equation

$y = kxz^2$

Substitute values of x,y and z

$70 = k * 21 * 25^2$

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Divide both sides by 7

$\frac{70}{13125} = \frac{k * 131251}{13125}$

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$187.5 = k$

$k = 181.75$

Substitute k in $y = kxz^2$

$y = 181.75xz^2$

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Answer:

Step-by-step explanation:

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