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shtirl [24]
3 years ago
15

What is the value of the rational expression 3-x/x-6​ when x is equal to 9?

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
7 0

Answer:

\boxed{\sf \ \ \ answer \ \ B \ \ \ }

Step-by-step explanation:

Hello,

x is like a container, it can contain any real number

in that case we need to replace x by 9

so we need to compute the following

\dfrac{3-x}{x-6} \ for \ x =9\\\dfrac{3-9}{9-6}=\dfrac{-6}{3}=-2

so the winner is the answer B

hope this helps

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A sporting goods manager was selling a ski set for a certain price. The manager offered the markdowns shown on the right, making
ra1l [238]

Answer:

The original selling price would be $ 515.87 ( approx )

Step-by-step explanation:

Consider the complete question is :

"A sporting goods store manager was selling a ski set for a certain price. The manager offered the markdowns​ shown, making the​ one-day sale price of the ski set ​$325. Find the original selling price of the ski set. It was marked down 10% and 30%"

Suppose x be the original selling price ( in dollars ),

After marking down 10%,

New selling price = x - 10% of x = x - 0.1x = 0.9x

Again after marking down 30%,

Final selling price = 0.9x - 30% of 0.9x

= 0.9x - 0.3 × 0.9x

= 0.9x - 0.27x

= 0.63x

According to the question,

0.63x = 325

\implies x =\frac{325}{0.63}=\$ 515.87

Therefore, the original selling price would be $ 515.87.

8 0
3 years ago
Read 2 more answers
Rachel runs 4 miles in 23 minutes. How many miles does she run per minute?​
KIM [24]

Answer:

To calculate how many total miles Rachel runs per minute, setting up a unit rate, that is a rate with a denominator of 1, would be helpful.

Step-by-step explanation:

Use the current problem to determine a rate.

23 minutes/4 miles

Now, set up a unit rate.

1 minute/<em>x </em>miles = 23 minutes/4 miles

To solve for <em>x, </em>we can use simple division strategies. We divide 23 by 23 to receive 1 minute. Likewise, dividing the current milage by 23 would wield the correct unit rate. To do this, divide 4 by 23.

4/23 = 0.1739130434782609

Finally, simplify your answer to receive 0.17.

Therefore, Rachel runs ~0.17 miles per minute. (Note that this answer is only a rounded answer of her actual milage per minute)

8 0
2 years ago
PLS HELP WILL GIVE BRAINLIEST ANSWER
lubasha [3.4K]

Answer:

56°

Step-by-step explanation:

First, the measure of angle GHE is equal to DFH. This means that you can set 98-6x=63-x, which becomes 5x=35 so x=7. Substitute 7 for x and you'll get DFH =63-7, which is 56.

8 0
2 years ago
What is the solution to the equation –3m = 27 - 6m?
lara [203]

Answer: 9

Step-by-step explanation:

Add 6m on both sides. Then divide by 3 on both sides. m=9

4 0
3 years ago
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Here are the heights in inches of 10 professional basketball players: 66,74,76,77,78,79,80,80,82,84. The means of these heights
Lesechka [4]

Answer:

heights are:

66, 74, 76, 77, 78, 79, 80, 80, 82, 84

The mean is: 77.6 inches

Step-by-step explanation:

removing 66 will make the mean increase to 78.9  

The set has 66 as an outlier and removing it increases the mean by about 1.3 inches.

7 0
3 years ago
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