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Firlakuza [10]
3 years ago
10

What is the value of n? −6.5(n−5)=18.2

Mathematics
1 answer:
Rus_ich [418]3 years ago
3 0

Answer: ⇒ n=\frac{11}{5}

___________________________________________________

Step-by-step explanation:

First you had to multiply by 10 from both sides of equation.

-6.5(n-5)*10=18.2*10

Then refine.

-65(n-5)=182

Divide by -65 from both sides of equation.

\frac{-65(n-5)}{-65}= \frac{182}{-65}

Simplify.

n-5=-\frac{14}{5}

Then you add by 5 from both sides of equation.

n-5+5=-\frac{14}{5}+5

Simplify it's should be the right answer.

n=\frac{11}{5}

______________________________________________________

Hope this helps!

Thank you for posting your question at here on brainly.

Have a great day!

________________________________________________

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Step-by-step explanation:

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4(-8x + 5) – (-33x – 26) ​
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Brady rode his bike 70 miles in 4 hours. He rode at an average speed of 17 miles per hour for t hours and at an average rate of
IceJOKER [234]

Answer:

Brady rides at slower speed which is 17 miles/hours for <em><u>3 hours and 36 minutes.</u></em>

Step-by-step explanation:

Given:

Brady rode 70 miles in 4 hours.

For t hours he rode at the average rate of 17 miles/hour

For rest of the time he rode at the average rate of 22 miles per hour.

To find the time Braady rode at the slower speed.

Solution:

Total time of riding = 4 hours

Time for which Brady rides at 17 miles/ hour = t  hours

Distance covered in t hours = Speed\times time=17\times t =17t\ miles

So, time for which Brady rides at 22 miles/ hour = (4-t) hours

Distance covered in (4-t) hours = Speed\times time=22\times(4-t) =(88-22t)\ miles

Total distance can be given as:

⇒ 17t+88-22t

Simplifying.

⇒ -5t+88

Total distance given =70 miles.

Thus, the equation to find t can be given as:

-5t+88=70

Subtracting both sides by 88.

-5t+88-88=70-88

-5t=-18

Dividing both sides by -5.

\frac{-5t}{-5}=\frac{-18}{-5}

∴ t=3.6 hours

3.6\ hours = 3\ hour+ (0.6\times 60)\ minutes = 3\ hour\ 36\ minutes

Thus, Brady rides at slower speed which is 17 miles/hours for 3 hours and 36 minutes.

6 0
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