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Dafna11 [192]
3 years ago
14

Solve(4/x)-(2/5)=(6/x)

Mathematics
2 answers:
garik1379 [7]3 years ago
6 0

(4/x) - (2/5) = (6/x)

Move the variables to one side:

-(2/5) = (6/x) - (4/x)

Then simplify:

-(2/5) = (2/x)

-(2/5)x = 2

x = -5

You can check by substituting the solution back in, replacing the variable.

Volgvan3 years ago
3 0

The answer is       x = -5

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A number when divided by 780 gives remainder 38 .What
baherus [9]

Given:

A number when divided by 780 gives remainder 38.

To find:

The reminder that would be obtained by dividing same number by 26.

Solution:

According to Euclis' division algorithm,

a=bq+r                ...(i)

Where, q is quotient and 0\leq r is the remainder.

It is given that a number when divided by 780 gives remainder 38.

Substituting b=780,\ r=38 in (i), we get

a=(780)q+38

So, given number is in the form of 780q+38, where q is an integer.

On dividing 780q+38 by 26, we get

\dfrac{780q+38}{26}=\dfrac{780q}{26}+\dfrac{38}{26}

\dfrac{780q+38}{26}=30q+\dfrac{26+12}{26}

\dfrac{780q+38}{26}=30q+\dfrac{26}{26}+\dfrac{12}{26}

\dfrac{780q+38}{26}=30q+1+\dfrac{12}{26}

Since q is an integer, therefore (30q+1) is also an integer but \dfrac{12}{26} is not an integer. Here 26 is divisor and 12 is remainder.

Therefore, the required remainder is 12.

4 0
3 years ago
A rectangular plot of farmland will be bounded on one side by a river and on the other three sides by a​ single-strand electric
larisa86 [58]

Answer:

525 x 1,050

A = 551,250 m²

Step-by-step explanation:

Let 'L' be the length parallel to the river and 'S' be the length of each of the other two sides.

The length of  the three sides is given by:

2S+L=2,100\\ L=2100-2S

The area of the rectangular plot is given by:

A=S*L\\A=S(2100-2S)\\A=2100 S -2S^2

The value of 'S' for which the area's derivate is zero, yields the maximum total area:

\frac{dA(S)}{dS}=\frac{d(2100 S -2S^2)}{dS}\\0= 2100 - 4S\\S=525

Solving for 'L':

L=2100-(2*525)\\L=1,050

The largest area enclosed is given by dimension of 525 m x 1,050 and is:

A = 525*1,025\\A=551,250\ m^2

5 0
3 years ago
Number sequences<br> what are the cube numbers after 64 :64,....
leva [86]
How many do you want ?  There are an infinite number of them.
You can find a huge number of them with your calculator
Here are a few (2 for each point I'll earn):

5³ = 125
6³ = 216
7³ = 343
8³ = 512
9³ = 729
10³ = 1,000
11³ = 1,331
12³ = 1,728
13³ = 2,197
14³ = 2,744
.
.
etc.
8 0
3 years ago
The bottom plzz help me
gladu [14]
The answer uses NMF for formatting, which you can find out about in my profile if needed:

the equation is this:
time = {total paid - 35}/{15}

Put in what we know:
time = {95 - 35}/{15}
time = {60}/{15}
time = 4 hours
7 0
3 years ago
Click on pic to get the actual question please
schepotkina [342]

Answer: The products are 3 and 6

Step-by-step explanation:

The product of the factor is either 1/2 or 18, depends whether it wants a fraction or an answer to a multiplication problem.

Hope this helps!

4 0
3 years ago
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