There are 7 kids to each group!
Q.13 is no solution since the y intercept of the 2 equation differ but gradient is the same therefore if you were to draw a graph there wont be any intersection between the equations
the next question's answer is no solution
The first one is -4 and the second one is 6.
<span>x = 2, y = 1
= 3*2 + 7*1
= 6+7
= 13
Hence, (2, 1) is the answer.</span>
1 hour=60 minutes 12×5=60
9×5=45
About 45 messages per hr
