2 years ago

What is the greatest factor of 49 that is a prime number

Mathematics

2 answers:

Sunny_sXe [5.5K]2 years ago

5 0

7.

7 squared gives 49, and it is a prime number.

emmainna [20.7K]2 years ago

3 0

7 is a prime number and it goes into 49 equally

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each time kim pour water from a jug into a glass, exactly 10% of the water remaining in the jug is used. What is the minimum num

Gnoma [55]

The correct answer is:

At least 7 times.

Explanation:

Since 10% of the water in the jug is removed each time, this means that 100-10=90% of the water remains.

After two times, we would have 0.9(0.9) = 0.81 = 81% of the water; each time she pours, the number of times 0.9 is multiplied by itself changes. This makes this an exponential inequality (it is not an equation, as we want "less than half of the water"):

$0.5 < 0.9^x$