Answer:
3rd Matrix
Step-by-step explanation:
When you start putting the coefficients in as the matrix, you see that -9 has to be the 1st number, so that eliminates choice B and choice D as answers. You are left with choices A and C. C is the correct choice because when you plug in the second equation, your coefficient is -5, not 0.
Answer:
1. 13 times
2. 1170 sec = 19 min 50 sec
Step-by-step explanation:
1. 3.1 times 4 quoters = 13 times
90 sec
<u>x 13 times</u>
270
<u> 900 </u>
1170 sec = 19 min 50 sec
The crimes either decrease within 6 days of a week