Answer:
13 years old
Step-by-step explanation:
2x - 4
11-5=6
6 x 2 = 12
12 - 4 = 8
8 + 5 = 13
CHECKING JUST TO MAKE SURE:
13 - 5 = 8
11 - 5 = 6
6 x 2 = 12
12 - 8 = 4
You can now tell that it is correct.
Hope this is the right answer .
Answer:
2 1/6 hours.
Step-by-step explanation:
It walks 1 1/2 miles in 3 1/4 hours.
So it walks 1 mile in (3 1/4 ) / (1 1/2) hours.
= 13/4 / 3/2
= 13/4 * 2/3
= 26/12 hours
= 2 1/6 hours.
Answer:
A. 5:6
Step-by-step explanation:
The scale factor of the smaller figure to the larger = the ratio of a side of the smaller figure to the corresponding side of the larger figure.
Thus, side length of 25 units of the smaller figure corresponds to the side length of 30 units.
Therefore:
Scale factor = 25:30
Simplify
Scale factor of the smaller figure to the larger = 5:6
Answer:

Step-by-step explanation:
Given
ID Card of 5 digits
Possibly Digits = {0,1...,9}
Required
Probability that a card has exact number 94213
First, we have o determine the total possible number of ID card numbers
Let the card number be represented by ABCDE
Given that repetition of digits is not allowed;
<em>A can be any of 10 digits</em>
<em>B can any of the remaining 9 digits</em>
<em>C can be any of the remaining 8 digits</em>
<em>D can be any of the remaining 7 digits</em>
<em>E can be any of the remaining 6 digits</em>
<em />
Total number of cards = 10 * 9 *8 * 7 * 6
Total = 30240
Provided that the card number is generated at random; each card number has the same probability of 
Hence, the probability of having 94213 is 