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3 years ago

An ice cream shop offers 3 ice cream flavors 3 types of syrup and 2 toppings for sundaes

Mathematics

1 answer:

babymother [125]3 years ago

3 0

Answer: 18

Step-by-step explanation:

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What is the unit rate for 220$ to 13ft

Firlakuza [10]

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Total Rate= 220$ and length = 13 ft

13/220$

= 1/16.92$

Unit = 16.92$

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2 years ago

Kendra was asked to find the number of students who planned to attend the evening sympothy performance. She was told that 40 per

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It's B

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2 years ago

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Round 254 212 610 to the nearest million

mafiozo [28]

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254,000,00

I hope this helps

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2 years ago

8y : 10y in its simplest form

Harrizon [31]

4y:5y would be the simplest form

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3 years ago

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Solving separable differential equation DY over DX equals xy+3x-y-3/xy-2x+4y-8

Ivanshal [37]

It looks like the differential equation is

$\dfrac{dy}{dx} = \dfrac{xy + 3x - y - 3}{xy - 2x + 4y - 8}$

Factorize the right side by grouping.

$xy + 3x - y - 3 = x (y + 3) - (y + 3) = (x - 1) (y + 3)$

$xy - 2x + 4y - 8 = x (y - 2) + 4 (y - 2) = (x + 4) (y - 2)$

Now we can separate variables as

$\dfrac{dy}{dx} = \dfrac{(x-1)(y+3)}{(x+4)(y-2)} \implies \dfrac{y-2}{y+3} \, dy = \dfrac{x-1}{x+4} \, dx$

Integrate both sides.

$\displaystyle \int \frac{y-2}{y+3} \, dy = \int \frac{x-1}{x+4} \, dx$

$\displaystyle \int \left(1 - \frac5{y+3}\right) \, dy = \int \left(1 - \frac5{x + 4}\right) \, dx$

$\implies \boxed{y - 5 \ln|y + 3| = x - 5 \ln|x + 4| + C}$

You could go on to solve for $y$ explicitly as a function of $x$ , but that involves a special function called the "product logarithm" or "Lambert W" function, which is probably beyond your scope.

8 0

1 year ago