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postnew [5]
3 years ago
9

I need help.. 

Mathematics
2 answers:
Debora [2.8K]3 years ago
8 0
This is exactly like the one with the 'n's that you posted yesterday.
I guess you didn't get enough help on that one to understand it.

<span><u>7k/8 - 3/4 - 5k/16 = 3/8</u>

3/4 is the same as 6/8.
Add it to each side of the equation:

7k/8         - 5k/16 = 9/8

Multiply each side by 16 :

14k - 5k = 18

Add up the 'k's on the left side:

9k = 18

From this point, you can proceed directly to the numerical value of 'k'
if you need it.<u />

In your question, you said you need help, and I showed you how to
strip the problem down so that the only thing left is ' k = something '.
Giving you the answer is no help.  Nobody actually needs the answer.
</span>


luda_lava [24]3 years ago
5 0
Since 16 is their least common multiple you can get rid of all of the fractions by multiplying each fraction by 16:

16(7k/8)-16(3/4)-16(5k/16)=16(3/8)
<u /> 
14k-12-5k=6
            9k=6+12
            9k=18
              k=18/9
              k=2

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Step-by-step explanation:

if you need more help just message me.. but everything is written

4 0
2 years ago
A rainwater collection tank is shaped like a cylinder with a diameter of 4 ft and height of 6 ft what is its volue
lana [24]
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6 0
3 years ago
A school has a parking lot that is 150.23 feet by 135.12 feet. What is the perimeter of the parking lot?
elena-14-01-66 [18.8K]

Answer: 570.70 ft

Step-by-step explanation:

The perimeter is the distance around the entire parking lot.

The measurement of 150.23 ft by 135.12 ft is half of the distance of the lot because it represents just two sides yet there are 4 sides.

The other two sides have the same measurement as this is a rectangle.

The perimeter of the parking lot is:

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= 570.70 ft

4 0
3 years ago
Function f is shown below <br> f(-3) <br> f(4)<br> find x when f(x) = 5<br> find x when f(x)= -3
hjlf

Answer:

See below ~

Step-by-step explanation:

Based on the graph,

  1. <u>f(-3)</u>
  • f(-3) = 0

   2. <u>f(4)</u>

  • f(4) = -3

   3. <u>x when f(x) = 5</u>

  • f(x) = 5
  • x = 0

   4. <u>x when f(x) = -3</u>

  • f(x) = -3
  • x = ±4
4 0
2 years ago
How to find the area
sp2606 [1]
You know from trigonometry that AB = 15 units, so the area of the larger triangle ACB is (1/2)*15*15 = 112.5 units^2.

Then the area of triangle ADE is
.. (112.5 -62.5) = 50 . . . . units^2
7 0
3 years ago
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