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tangare [24]
3 years ago
5

A person needs to pay TK. 500 to by pencils and TK. X for any additinal unit of pencil.If the cumstomer pays a total of TK. 4700

for 1200 pencils what is the value of X?
Mathematics
1 answer:
sp2606 [1]3 years ago
5 0

Answer:

3.50

Step-by-step explanation:

First we take the 500 fee for purchasing pencils off of the total:

4700-500 = 4200

This means we pay 4200 for 1200 pencils; dividing this will tell us the amount per pencil, x:

4200/1200 = 42/12 = 21/6 = 7/2 = 3.5

Thus we pay 3.50 per pencil.

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Please help me solve this equation and show the work show me how you got the answer
Nesterboy [21]

Answer: k=3

Step-by-step explanation:

To solve for k, you want to isolate k.

\frac{2}{5} (5k+35)-8=12            [add both sides by 8]

\frac{2}{5} (5k+35)=20                  [multiply both sides by 5/2]

5k+35=50                       [subtract both sides by 35]

5k=15                               [divide both sides by 5]

k=3

Now, we know that k=3.

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3 years ago
What fraction of 5 is 1/2​
Sphinxa [80]

Answer:

1/10

Step-by-step explanation:

1/2 divided by 5 = 1/10

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find the standard form of equation of a line perpendicular to 4X plus 5Y equals 40 that includes the point -10, -3
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4 0
3 years ago
-50 added to three times an unknown number equals -11?
RoseWind [281]

Hello there!

An equation to model this situation is 3n - 50 = -11

The unknown number has a value of 13.

Okay, so let's start by breaking down the question - we'll use <em>n</em> to model the unknown number.

-50 added to three times an unknown number equals -11?

This means we are adding -50 to something else. (We can use + -50 or - 50 since they are the same thing, I'll use - 50 since it's easier to follow.)

-50 added to three times an unknown number equals -11?

This phrase can be modeled as 3n. This is what we are taking 50 from, so we can add that to the end of the equation so far.

3n - 50

-50 added to three times an unknown number equals -11?

This can means the equation equals -11. We can model it as = -11. Now, let's add it to our equation.

3n - 50 = -11

Now, solve for n.

You want to start by canceling -50 out on the left side, so n is on it's own side, and to do this you add 50 to both sides.  

3n - 50 + 50 = -11 + 50

3n = 39

To finish isolating n, divide both sides of the equation by 3.

3÷3n = 39÷3

n = 13.

I hope this helps and have a great day!



7 0
3 years ago
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