Question

(1/4+3/4х):0,45=25/36

Answer 1

$\frac{1+3x}{4} * \frac{100}{45} = \frac{25}{36}$
1+3x* $\frac{25}{45} = [tex] \frac{25}{36}$
1+3x* $\frac{5}{9} = \frac{25}{36}$
$\frac{5+15x}{9 } = \frac{25}{36}$
225=180+540x
45=540x
x= $\frac{1}{12}$

Answer 2

 \frac{100}{45} \frac{1}{4} +3/4х)=25/36
100*1 / 45*4  +  100*3 / 45*4х=25/36
25/45+75/15х=25/36
75/15х=-25/45+25/36
75/15х=-100/180 + 125/180
75/15х= \frac{25}{180} 
х=\frac{25}{180}   /    \frac{75}{15} 
дальше сам

Answer 3

To solve this equation, we can start by simplifying the expression on the left side of the equation:

(1/4 + 3/4x) / 0.45 = 25/36

First, we can simplify the left side by finding a common denominator for the fractions in the numerator:

[(1100/4100) + (3/4x*100/100)] / 0.45 = 25/36

(25 + 75x) / 45 = 25/36

Next, we can simplify further by cross-multiplying:

25/36 * 45 = (25 + 75x)

The left side simplifies to:

625/4 = 25 + 75x

Subtracting 25 from both sides gives:

600/4 = 75x

150 = 75x

Finally, dividing both sides by 75 gives:

x = 2

Therefore, the solution to the equation is x = 2.