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True [87]
2 years ago
12

Please help D=1/3fk solve for k

Mathematics
1 answer:
masha68 [24]2 years ago
8 0

Answer:

<h2>k =  \frac{3D}{f}</h2>

Step-by-step explanation:

<h3>D =  \frac{1}{3} fk</h3>

To solve for k first multiply both sides by 3

That's

<h3>3D = fk</h3>

Next divide both sides by f in order to isolate k

We have

<h3>\frac{fk}{f}  =  \frac{3D}{f}</h3>

Simplify

We have the final answer as

<h3>k =  \frac{3D}{f}</h3>

Hope this helps you

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The maximum recommended slope of wheelchair ramp is 1/12. A business installs a wheelchair ramp that rises 22inches over a horiz
Olin [163]

Given parameters:

Recommend wheelchari ramp slope  = \frac{1}{12}  

Rise of the new wheel chair ramp  = 22 inches

Horizontal length  = 24feet

Unknown:

Is the ramp steeper than the recommended  = ?

Slope is the ratio of rise to the horizontal distance covered

 Mathematically;

                 Slope = \frac{Rise}{horizontal distance}

Slope of the wheel chair ramp;

                covert 24 feet to inches;

        1 foot = 12 inches

        24 feet  = 24 x `12  = 288inches

Slope  = \frac{22}{288 }   = \frac{11}{144}

The two slopes being compared are;

               \frac{1}{12}  and \frac{11}{144}

The steeper of the first one 1/12. It has a higher slope compared to the second one.

4 0
2 years ago
In an examination, a candidate has to score 40% marks to pass. Anil scores 22 and failed by 8 marks. What is the full marks?​
alexgriva [62]

Answer:

75

Step-by-step explanation:

Let full marks be x

Then pass marks is 40% of x which is 0.4x

As per given, we have

22= 0.4x - 8

Solving for x

0.4x = 30

x = 30/0.4

x = 75

So full marks is 75

8 0
2 years ago
the sum of two numbers is 31. 2/3 of one of the numbers added is equal to 5/8 of the other.find the two numbers
Jet001 [13]
One number is 15 and the other is 16. You get this answer by first finding a factor of 3(15) that when it's subtracted from 31 gives you a factor of 8(16). Then you divide in this case 15 by 3 and get 5 and 16 by 8 and get 2. The reason you divided the numbers is because now you have 5 which is 1/3 of 15 and 2 which is 1/8 of 16. Now that you have your numbers that equal your fractions multiply 5 which is your 1/3 by the 2 from your 2/3 to get 10 which is 2/3 of 15 and 2 which is 1/8 by the 5 from you 5/8 to get 10 which is 5/8 of 16
6 0
2 years ago
If cheese costs $5.65 per pound, what will be the total cost of 2.2 pounds of cheese?​ plz help meee
lutik1710 [3]
The answer is $12.43

Multiply the two numbers.
3 0
2 years ago
Greta is taking a road trip from Cincinnati to San Francisco. On the first day, she drove 650 miles in 10 hours. On the second d
abruzzese [7]

Given:

On the first day, she drove 650 miles in 10 hours.

On the second day, she got a later start and drove 540 miles in 8 hours.

To find:

Difference between average speed of second day and first day.

Solution:

We know that,

Speed=\dfrac{Distance}{Time}

On the first day, she drove 650 miles in 10 hours.  So, the average speed is

Speed=\dfrac{650}{10}

Speed=65

So, the average speed on first day is 65 miles per hour.

On the second day, she got a later start and drove 540 miles in 8 hours.

Speed=\dfrac{540}{8}

Speed=67.5

So, the average speed on second day is 67.5 miles per hour.

Difference between average speed is

67.5-65=2.5

Therefore, the average speed on the second day is 2.5 miles per hour is faster than first day.

3 0
1 year ago
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