Answer:
−
4x−2
Step-by-step explanation:
-2 (-30) - 3y = 42
60 - 3y = 42
-3y = -18
y = 6
Answer: It is a 25% increase.
Step-by-step explanation: First lets subtract her new wage from her old wage. 10 - 8 = 2
Next, lets write an percent equation, for p = percent.
2 = p x 8
Basically, we are saying that her new wage will be what percent of her old wage.
Next,
2/8 = p
0.25 = p
Now, multiply 0.25 by 100 to get a percent
0.25 x 100 = 25
So her new wage is a 25% increase from her old wage.
Step-by-step explanation:
Answer: the number of adult and student tickets sold are (45, 29)
Step-by-step explanation:
Let x represent the number of adult tickets that were sold.
Let y represent the number of student tickets that were sold.
On Wednesday, a total of 74 tickets were sold. This means that
x + y = 74
x = 74 - y- - - - - - - - - - - - - - 1
If adult tickets are sold for $15 and student tickets are sold for $11 and the money collected was $994, it means that
15x + 11y = 994- - - - - - - - - - - - - - 2
Substituting equation 1 into equation 2, it becomes
15(74 - y) + 11y = 994
1110 - 15y + 11y = 994
- 15y + 11y = 994 - 1110
- 4y = - 116
y = - 116/ - 4
y = 29
Substituting y = 29 into equation 1, it becomes
x = 74 - 29 = 45
