All categories

2 years ago

How to solve this maths equation??? pls help me, its urgent!!! asap

Mathematics

1 answer:

Vikki [24]2 years ago

4 0

Answer:

x = $\frac{3wyz}{4wz+wy-2yz}$

Step-by-step explanation:

Given

$\frac{2}{w}$ + $\frac{3}{x}$ - $\frac{4}{y}$ = $\frac{1}{z}$

Multiply through by wxyz to clear the fractions

2xyz + 3wyz - 4wxz = wxy ( subtract wxy from both sides )

2xyz + 3wyz - 4wxz - wxy = 0 ( subtract 3wyz from both sides )

2xyz - 4wxz - wxy = - 3wyz ( factor out x from each term on the left side )

x(2yz - 4wz - wy) = - 3wyz ( divide both sides by (2yz - 4wz - wy )

x = $\frac{-3wyz}{2yz-4wz-wy}$ ( multiply numerator/ denominator by - 1 )

x = $\frac{3wyz}{4wz+wy-2yz}$

You might be interested in

Let w=width and 4 + w=

kozerog [31]

Answer:

Part 1 : $w^2+4w-60=0$

Part 2 :

w=6

l = 10

Step-by-step explanation:

Part 1:

Let the width of the rectangle = w

Length of the rectangle = w + 4

Area of the rectangle is given as

60 Sq Yrds

$60=w(w+4)$

$60=w^2+4w$

$w^2+4w-60=0$

Hence this expression represents the area of the rectangle. Solving which for w will give us the width of the rectangle.

Part 2:

(w+10)(w-6)= 0

either (w+10) = 0

(w-6)=0

or both are zero

(w+10) = 0 ⇒ w = -10

not possible as the dimension can not be 0

(w-6)=0 ⇒ w=6

Hence the width is 6 yards

And thus the length will be 6+4 = 10 yards

8 0

2 years ago

Please answer the question in the photo, thanks!

belka [17]

Answer:

$\therefore 2\dfrac{1}{3} \div \left ( -3\dfrac{2}{3} \right ) = -\dfrac{7}{11}$

Step-by-step explanation:

The question relates to dividing a fraction by proper and another fraction

The given expression is presented as follows;

$2\dfrac{1}{3} \div \left ( -3\dfrac{2}{3} \right )$

We rearrange the fractions as improper fractions for easier division as follows;

$2\dfrac{1}{3} = \dfrac{7}{3}$

$-3\dfrac{2}{3} = -\dfrac{11}{3}$

Therefore, we have;

$2\dfrac{1}{3} \div \left ( -3\dfrac{2}{3} \right ) = \dfrac{7}{3} \div \left (-\dfrac{11}{3} \right ) = \dfrac{7}{3} \times \left (\dfrac{1}{-\dfrac{11}{3} } \right ) = \dfrac{7}{3} \div \left (-\dfrac{3}{11} \right ) =-\dfrac{7}{11}$

$\therefore 2\dfrac{1}{3} \div \left ( -3\dfrac{2}{3} \right ) = -\dfrac{7}{11}$

4 0

2 years ago

kevin answered 54 out of 60 questions correct on his algebra quiz.what is his score as a percent ? round your answer to the near

Mila [183]

Answer: 90%

Step-by-step explanation:

54/60=0.9 0.9*100= 90

6 0

2 years ago

Read 2 more answers

A car dealership sold the following colors of cars in January.

sweet [91]

The answer is A. 28%

7 0

2 years ago

Which expression represents x less than 9? A. x−9 B. 9−x C.−9x−9 D. 9x−9

LiRa [457]

The answer is B. 9 - x. I hope this helps!

7 0

2 years ago

Read 2 more answers

How to solve this maths equation???​ pls help me, its urgent!!! asap

How to solve this maths equation??? pls help me, its urgent!!! asap