Answer:
that is impossible
Step-by-step explanation:
because you have 2 equations where y+z equal different numbers
Answer:
117 students, 8 adults
Step-by-step explanation:
Let's say a adults went and s students went.
Total cost for adults = 23 for each a = 23a
Total cost for each student = 16s
Number of adults and students = a + s = 125
Total cost = 23a + 16s = 2056
a + s = 125
23a + 16s = 2056
We can solve this by solving for a and then plugging that into the other equation, making it so that there is only one variable
subtract s from both sides in the first equation
a = 125 - s
plug that into the second equation
23(125 - s) + 16s = 2056
2875 - 23s + 16s = 2056
2875 - 7s = 2056
subtract 2875 from both sides to isolate s and its coefficient
-7s = -819
divide both sides by -7 to isolate s
s = 117
a = 125 - s = 125 - 117 = 8
9514 1404 393
Answer:
70 -91i
Step-by-step explanation:
Collect terms the same way you would if i were a variable.
(3 -91i) +67 = (3 +67) -91i = 70 -91i
Answer: 5 hours / 3 people
Step-by-step
= 5/3 = 1 2/3
