<span>60/300 = 0.20 = 20%
</span><span>60/300= fraction = decimal = %</span>
Answer:
5b -5
Step-by-step explanation:
5(b - 1)
we apply distributive property:
5*b -5*1
5b -5
Answer:
457,909
Step-by-step explanation:
-3358 from 461,267 and it gaves you 457,909
so 457,909 + 3358 = 461,267
Maybe 38/10. Transforming it into fractions, then in tenths
The sum of the first n odd numbers is n squared! So, the short answer is that the sum of the first 70 odd numbers is 70 squared, i.e. 4900.
Allow me to prove the result: odd numbers come in the form 2n-1, because 2n is always even, and the number immediately before an even number is always odd.
So, if we sum the first N odd numbers, we have

The first sum is the sum of all integers from 1 to N, which is N(N+1)/2. We want twice this sum, so we have

The second sum is simply the sum of N ones:

So, the final result is

which ends the proof.