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2 years ago

X/30 + X/40= 1 Solve for x

Mathematics

2 answers:

Svetllana [295]2 years ago

4 0

Answer:

17 1/7 I think

Step-by-step explanation:

slega [8]2 years ago

4 0

x=17.1

Step-by-step explanation:

$\frac{x}{30} + \frac{x}{40} = 1 \\ \frac{3x + 4x}{120} = 1 \\ \frac{7x}{120} = 1 \\ \frac{7x}{120} = 1 \\ 7x = 120 \\ x = \frac{120}{7} \\ x =17.1$

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