Eyda G.
asked 11/29/19This is a math problem.
a is the highest possible value that 5 a could divide 1500, b is the highest possible value that 3 b could divide 33,333,333
A. a*b = 3 B. a = 3b C. 2a > 5b
Why ABC are all correct?
1 Expert Answer
Ricky L. answered 3d
Vandy Peabody Grad | GRE Perfect Score | Math, GRE & AP Psych Tut
To find the highest value of a such that 5a divides 1500, we need to perform a prime factorization of 1500:
- 1500 = 15 * 100
- 15 = 3 * 5
- 100 = 4 * 25 = 22 * 52
- Combining these, we get: 1500 = 22 * 31 * 53
Since there are three factors of 5 in the prime factorization, the maximum value for a is 3.
To find the highest value of b such that 3b divides 33,333,333, we first factor out the 3: 33,333,333 = 31 * 11,111,111.
Now, we apply the divisibility rule for 3 (the sum of the digits must be divisible by 3) to the remaining number:The sum of the digits of 11,111,111 is 1+1+1+1+1+1+1+1 = 8. Since 8 is not divisible by 3, 11,111,111 contains no more factors of 3. Therefore, the maximum value for b is 1. (To determine if a number is divisible by 3, you simply sum all its individual digits. If that sum is a multiple of 3, the original number is also divisible by 3.)
The values are a = 3 and b = 1.
Ricky L.
3d
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Mark M.
Something is incorrect in the data. In the choices if ab = 3 then a = 3b and not be! Proofread the problem, edit, and resubmit.11/30/19