What are the prime factors of 700? A. 350 × 2 B. 2 × 2 × 2 × 5 × 5 × 7 C. 2 × 2 × 25 × 7 D. 2 × 2 × 5 × 5 × 7
1 answer:
We can do this by the tree method. What I've done here is to divide each factor by prime numbers until we have only prime numbers left. For example the second level of the tree from the top has 350 and 2. This is because 750 = 2*350. the next level has 175 and 2 because 350 = 2*175.
At the end we are left with the prime factors and find that 700 = 7*5*5*2*2
At the end we are left with the prime factors and find that 700 = 7*5*5*2*2
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The paper would be 112589991 km thick if folded 50 times.
Step-by-step explanation:
Step 1; The sheet is mm thick which equals 0.1 mm. Every time it is folded it doubles in thickness. So if folded once it becomes 0.2 mm thick, if folded thrice it becomes 0.4mm thick.
Thickness if folded once = × 0.1 mm
thickness if folded twice = × 0.1 mm
Thickness if folded thrice = × 0.1 mm.
So if the paper is folded nth fold it would be × 0.1 mm thick.
Step 2; Using the above formula, if the paper is folded 50 times the thickness would be equal to × 0.1 mm = 112,589,990,684,262.4 mm.
1 km is equivalent to mm so 112,589,990,684,262.4 mm = 112,589,990.6842624 km which is rounded off to 112589991 km.