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3 years ago

Help me! Sorry for the other question.... let’s try it again! 1/2 x + 3/5 x = 5/4

Mathematics

2 answers:

Ann [662]3 years ago

8 0

Answer:

x = 1 3/22

Step-by-step explanation:

1/2 x + 3/5 x = 5/4

We need to get rid of the fractions by multiplying by 20 on each side

20 (1/2 x + 3/5 x) = 20 * 5/4

Distribute

10x + 12x = 25

Combine like terms

22x = 25

Divide each side by 22

22x/22 = 25/22

x = 22/22 + 3/22

x = 1 3/22

Volgvan3 years ago

4 0

Answer:

$x = 1\frac{3}{22}$

Step-by-step explanation:

=> $\frac{1}{2} x + \frac{3}{5} x = \frac{5}{4}$

LCM = 20

So, Multiplying both sides by 20

=> $20 (\frac{x}{2} + \frac{3x}{5}) = 5 * 5$

$10 * x + 4*3x = 25\\10x+12x = 25\\22x = 25$

Dividing both sides by 22

$x = \frac{25}{22}$

$x = 1\frac{3}{22}$

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