The number of positive 3-digit numbers have a property that the first digit is at least three times the second digit is 285.
<h3>
How to get the number?</h3>
Since restriction is set to the first digit, all you have to think is about the last two digits e.g if the first digit is one, the last two digits can only be zeros.
Thus, by the principle of multiplication, 1×1=1 way. If the first digit is 2, then the last digits can be either 1 or 0. You have 2×2=4 ways
For first digit 3, the last two digits can be 0,1 or 2. 3x3=9, there is a succinct pattern. Therefore, 1+4+9+16+25+36+49+64+81=285.
Learn more about numbers on:
brainly.com/question/251701
#SPJ1
Answer:
2 is the missing number
Step-by-step explanation:
if you divide 132,849 by the number already given (4,581), it gives you the answer (29)
have a lovely day <3
Answer:1,833
Step-by-step explanation: 5,500 divided by 3 is 1,833. Correct me if I’m wrong I think that’s what your doing
Answer:
Since there are two cars, each car, then, drove 104/2 = 52 miles. But one car is traveling 8 miles per hour faster.
Step-by-step explanation:
Answer:
A=38.88 or 38.9
Step-by-step explanation:
If both are similar then the 9 and the 7.2 are the same
9-7.2= 1.8
9x6=54
7.2-1.8=5.4
7.2x5.4=38.88 or 38.9
