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Contact [7]
3 years ago
5

i bought 3 small tapas dishes and 2 large ones on a visit to café ba-ba-reeba and. spent $14. I went back another day and got 4

small dishes and one for $12. How much does each kind of dish cost?​
Mathematics
1 answer:
satela [25.4K]3 years ago
5 0
The small dish costs $2 each and the large dish costs $4 each,

2(3)+4(2)=6+8=14

2(4)+4(1)=8+4=12
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Answer:

\frac{dy}{dx}=\frac{x(1-2lnx)}{x^{4}}

Step-by-step explanation:

To solve the question we refresh our knowledge of the quotient rule.

For a function f(x) express as a ratio of another functions u(x) and v(x) i.e

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\frac{df(x)}{dx}=\frac{v(x)\frac{du(x)}{dx}-u(x)\frac{dv(x)}{dx}}{v(x)^{2} }

from y=lnx/x^{2}

we assign u(x)=lnx and v(x)=x^2

and the derivatives

\frac{du(x)}{dx}=\frac{1}{x}\\\frac{dv(x)}{dx}=2x\\.

Note the expression used in determining the derivative of the logarithm function.it was obtain from the general expression of logarithm derivative i.e y=lnx\\\frac{dy}{dx}=\frac{1}{x}

If we substitute values into the quotient expression we arrive at

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2 years ago
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Step-by-step explanation:

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if you use a calculator to divide 17/15, you get 1.133 repeating.

<em>since 1.111 does not equal 1.113, </em><em>these ratios are not proportional. </em>

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3 years ago
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It’s (-1,0), because
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Read 2 more answers
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To find the average: the sum of the values/number of values
=250+310+275+195/4
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2 years ago
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