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3 years ago

Plz please help❤️ With only 5 please

Mathematics

2 answers:

Rufina [12.5K]3 years ago

6 0

Answer:

4. -1/2 and 2

5. N and R

Step-by-step explanation:

Well if you want me too do 5 I’ll do 4 too.

So for #4 it’s actually pretty simple we just have to seperate y that’s it.

So first we have to get y by itself by subtracting 3x to the other side so the equation looks like this now $6y=-3x+12$ .

Now we have to take away the 6 and to do that we divide it to all the numbers and variables. Which gets us $y=-1/2x+2$ .

So m and b are -1/2 and 2.

So we have to graph y = -1/2x + 2 so look at the image below.

So looking at the image we can see it passes through the points N and R.

Marysya12 [62]3 years ago

5 0

Answer:

The line passes through points N and R.

Step-by-step explanation:

I graphed the equation on the graph below.

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Answer:

3 dogs and 2 cats.

Step-by-step explanation:

In this case we can solve it using a 2x2 system of equations, like this:

let x: number of cats

let y: number of dogs

So:

42.5 * x + 64 * y = 277

35.5 * x + 50.5 * y = 222.5 => x = (222.5 - 50.5 * y) /35.5

Replacing, we are left with that:

42.5 * (222.5 - 50.5 * y) /35.5 + 64 * y = 277

266.37- 60.45 * y + 64 * y = 277

64 * y - 60.45 * y = 277 - 266.37

3.55 * y = 10.63

y = 10.63 / 3.55

y = 2.99, about 3

Now to calculate x:

x = (222.5 - 50.5 * 3) /35.5

x = 2

Which means that it has a total of 3 dogs and 2 cats.

3 0

3 years ago

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Rzqust [24]

Answer:

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Step-by-step explanation:

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4 years ago

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Sonja [21]

Answer:

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Step-by-step explanation:

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