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3 years ago

The ratio of boys to girls in WIN is 2:3. If there are 8 boys how many girls are there

Mathematics

1 answer:

IRISSAK [1]3 years ago

4 0

If there is 8 boys then there is 12 girls because 2x4=8 boys so 3x4=12 girls.

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A painter charges by the square foot and charges you $1,875 to paint a 750 square foot rental house. If you need 1300 square foo

Stella [2.4K]

In this question , it is given that

A painter charges by the square foot and charges you $1,875 to paint a 750 square foot rental house.

For 750 square foot, he charges $1875.

So for 1 square foot, he charges

$= \frac{1875}{750} = $2.50 \ \per \ square \ foot$

And for 1300 square foot, he charges

$= 2.50*1300 = $3250$

3 0

3 years ago

Science pls answer I give brainliest

elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

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3 years ago

Slove for v in the equation <br><br> 8v+5=13+7v

rosijanka [135]

Answer:

v = 8

Step-by-step explanation:

8v+5=13+7v

Subtract 5 from 13

8v=8+7v

Subtract 7v from 8v

Final answer: v = 8

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3 years ago

The recipe for sugar cookies requires 5 cups of flour to 3 cups of sugar. If Alex uses 15 cups of flour, how many cups of sugar

svp [43]

9 Cups. I 5*3=15 so 3*3=9

8 0

3 years ago

Read 2 more answers

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

2 years ago