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zalisa [80]
3 years ago
6

A letter used to represent a number in equations or expressions

Mathematics
1 answer:
natita [175]3 years ago
6 0
The answer is “x”. “x” represents the missing number in the problem.

Example:
16+x=20
The missing number, 4, would be represented as x. Hope this helps!
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3 years ago
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weqwewe [10]

Answer:

a)  8*88*10⁻⁶ ( 0.00088 %)

b) 0.2137 (21.37%)

Step-by-step explanation:

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