How many 3-digit numbers can you write using only digits 1 and 7? (Of course, digits can repeat.) How many 3-digit numbers can y
ou write using only digits 1 and 7? (Of course, digits can repeat.)
2 answers:
Answer:
Short answer 2 * 2 * 2 = 8
Step-by-step explanation:
The first digit can be either a 1 or a 7. You have 2 choices.
Once you have decided you can write either a 1 or 7 for the second which is 2 choices
Same with the third.
The numbers are
1 * 1 * 1
1 * 1 * 7
1 * 7 * 1
1 * 7 * 7
7 * 1 *1
7 * 1 * 7
7 * 7 *1
7 * 7 *7
Answer:
111,117,177,777,771,711,717,171
Step-by-step explanation:
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I hope that this helps. Have a good day!
Hi there,
I think the answer is
14
Have a nice day
It is equivalent I believe...hope this helps!
X= $14
In other words you can do 49 divided by 3.5
Answer:
its D
Step-by-step explanation:
