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3 years ago

There are 24 dogs to 18 at the pet day care write the ratio of cats to dogs

Mathematics

2 answers:

fgiga [73]3 years ago

8 0

Answer:

24:18

Step-by-step explanation:

this is the way i wa taught not sure if its right

djyliett [7]3 years ago

7 0

Answer:

3:4

Step-by-step explanation:

The ratio is 18:24. You can simplify the ratio to 3:4 since the numbers can be divisible by 6

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uranmaximum [27]

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3 years ago

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Solve the equation for y. 2y=8

saul85 [17]

Answer:

four

Step-by-step explanation:

2(4)=8

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3 years ago

A professional singer charged $1000 an hour. Her rate increase by 50% after midnight. If she performs one night from 8:30pm to 1

otez555 [7]

First we need to find out what her increase is so 50% of 1000 is is 500 so from 12am to 1am she made
1500
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6000 as the total amount she made

4 0

2 years ago

F(x) = lnx/x

My name is Ann [436]

$f(x) = \frac{lnx}{x}$

(a) $f'(x) = \frac{d}{dx}[\frac{lnx}{x}]$
Using the quotient rule:
$f'(x) = \frac{\frac{1}{x} \cdot x - lnx}{x^{2}}$
$f'(x) = \frac{1 - lnx}{x^{2}}$

For maximum, f'(x) = 0;
$\frac{1 - lnx}{x} = 0$
$lnx = 1, x = e$

(b) <em>Deduce:
</em> $e^{x} \geq x^{e}, x > 0$
<em>
Soln:</em> Since x = e is the greatest value, then f(e) ≥ f(x) > f(0)
$\frac{ln(e)}{e} \geq \frac{lnx}{x}$
$\frac{1}{e} \geq \frac{lnx}{x}$ , since ln(e) is simply equal to 1

Now, since x > 0, then we don't have to worry about flipping the signs when multiplying by x.
$\frac{x}{e} \geq lnx$
$x \geq elnx$
$x \geq ln(x^{e})$

Taking the exponential to both sides will cancel with the natural logarithmic function in the right hand side to produce:
$e^{x} \geq e^{ln(x^{e}})$
$e^{x} \geq x^{e}$ , as required.

3 0

2 years ago

The formula to convert Celsius to Fahrenheit is FC +32. Convert 87°F to

melisa1 [442]

Answer:

31°

Step-by-step explanation:

To convert Fahrenheit to Celsius is C= (F-32) * 5/9

So first do parenthesis 87-32= 55

Next multiply that number by 5/9 which is 30.55555555

Then round your answer = 31°

4 0

2 years ago