Answer: The number of $12 tickets and $15 sold are 120 and 180 respectively.
Step-by-step explanation:
The given equation is:
12x + 15y = 4140 .....(1)
Where,
x stands for $12 tickets and y stands for $15 tickets
According to the question:
x + y = 300 ....(2)
Now solving equation 1 and 2.
From equation 2:
x = 300 - y
Now putting this expression in equation 1.
12x + 15y = 4140
12(300 - y) + 15y = 4140
3600 - 12y + 15y = 4140
3600 + 3y = 4140
3y = 4140 - 3600
3y = 540
y = 180
And,
x = 300 - y = 300 - 180 = 120
The number of $12 tickets sold = x = 120
The number of $15 tickets sold = y = 180
Thus, the number of $12 tickets and $15 sold are 120 and 180 respectively.
Answer:
B
Step-by-step explanation:
3 power of 4 equal to 81
3 power of 2 equal to 9
81/9 = 9
Answer:
of answer Is A choose 1 answer positive negative neiter positive nor negative - the sum Is zero
Step-by-step explanation:
Answer:
h
Step-by-step explanation:
Answer:
c. 4 ft./ 1 sec.
Step-by-step explanation:
A unit rate <em>always </em>requires the last unit a numerical value of <em>1</em>.
So c is the answer because it is 4 ft per 1 sec or 4 ft/sec (4 feet per second)
More examples are: mph, kmph, g/cm² and etc.
