Answer:He can bring up 13.8333333333 boxes each trip
Step-by-step explanation:
970-140= 830
830÷60=13.8333333333
The ratio is 10:14 or 5:7 which is the ratio of boys to girls!
5p - 3q = -39
- (-2p - 3q = 3)
==> 7p = -42 ==> p = -6
==> p = -6
-2(-6) - 3q = 3 ==> 12 - 3q = 3
==>p = -6
-3q = 3 - 12 ==> -3q = -9
==> p = -6
q = 3
The answer is the last option.
All you have to do is subtract the 1 on both side of the equation to set it to 0 to get it into the general form.