3 years ago

Quotient of 819 divided by 40

Mathematics

1 answer:

irina [24]3 years ago

5 0

20.475

819/40= 20.475

Hope this helps <3

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John buys 3 packets of washing powder A. and 5 packets of washing

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Answer:

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B costs #553.0769

Step-by-step explanation:

Let cost of powder A be x and powder B be y

When he’s given refund, equation can be written as

6x=1740+3y

6x-3y=1740 eqn 1

2x-y=870 making y the subject of the formula

Y=2x-870

Also, from the initial shopping

3x+5y=4900 eqn 2

Substituting the formula of y into eqn 2 we obtain

3x+5(2x-870)=4900

3x+10x-4350=4900

13x=4900+4350=9250

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3 years ago

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Elanso [62]

Answer:

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(2^2x^2/xy^3)^2

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now,

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