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patriot [66]
3 years ago
13

Write the following statements in equation form: If the sum of a number and its two fifth is 70

Mathematics
2 answers:
iren [92.7K]3 years ago
6 0

Answer:

x +  \frac{2}{5}  \times x = 70 \\ x +  \frac{2}{5} x = 70

nevsk [136]3 years ago
3 0

Answer:

Let it be x the number.

We have to sum to x two fifths of him and we know the result is 70, so:

x + \frac{2}{5}x = 70

We could also solve it:

\frac{5x}{5}+\frac{2x}{5}=\frac{350}{5}

5x + 2x = 350

7x = 350

x=\frac{350}{7}=50

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