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4 years ago

What is the product of any integer and –1?

1 answer:

7 0

Since negative 1 is negative, we multiply by 1 and make it negative. Therefore, if the integer is x, the product of that and negative 1 is -1*x=-x

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Solving Rational equations. LCD method. Show work. Image attached.

Ugo [173]

Answer:

$k=\frac{1}{2}$

Step-by-step explanation:

The given rational equation is

$\frac{5k}{k+2}+\frac{2}{k}=5$

The Least Common Denominator is

$k(k+2)$

Multiply each term by the LCD.

$k(k+2)\times \frac{5k}{k+2}+k(k+2)\times \frac{2}{k}=5k(k+2)$

Simplify;

$k\times \frac{5k}{1}+(k+2)\times \frac{2}{1}=5k(k+2)$

$\Rightarrow k(5k)+2(k+2)=5k(k+2)$

Expand;

$\Rightarrow 5k^2+2k+4=5k^2+10k$

Group similar terms;

$\Rightarrow 5k^2-5k^2+2k-10k=-4$

$\Rightarrow -8k=-4$

Divide by -8.

$k=\frac{1}{2}$

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3 years ago

Jessie is shopping for clothing gifts for her friends. On the first trip to the store, she purchased 4 t-shirts and 7 scarves an

marshall27 [118]

Answer:

Not confident in this answer but $9.30 ¯\_(ツ)_/¯

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

3y - 5z = -23

leonid [27]

Starting off, we can multiply the third equation by 2 and add it to the third to get rid of both the x and y variables. Next, we get z=1. Plugging that into 3y-5z=-23, we get 3y-5=-23. Adding 5 to both sides, we get 3y=-18. After that, we can divide both sides by 3 to get y=-6. Plugging that into -2x-y-z=-3, we get -2x+6-1=-3=-2x+5. Subtracting 5x from both sides, we get -2x=-8. After that, we can divide both sides by -2 to get x=4.

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4 years ago

Qual das inequações seguintes e equivalente à inequação -2x <4?

garik1379 [7]

Answer:

I dont get your question

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3 years ago

Can you help me for real thank you a bunch

Mama L [17]

Answer:

Ok so the original bill you full out is $32.00 in that box. and the next box put 15% of $32

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3 years ago