Answer:
They sold 160 children's tickets.
Step-by-step explanation:
With the information provided, yoou can write the following equations:
x+y=233 (1)
8x+12y=2,156 (2), where:
x is the number of tickets for children 12 and under
y is the number of tickets for anyone over the age of 12
Now, you can solve for x in (1):
x=233-y (3)
Then, you have to replace (3) in (2) and solve for y:
8(233-y)+12y=2,156
1,864-8y+12y=2,156
4y=2,156-1,864
4y=292
y=292/4
y=73
Finally, you can replace the value of y in (3) to find x:
x=233-73
x=160
According to this, the answer is that they sold 160 children's tickets.
Answer:
16
Step-by-step explanation:
add
Answer:
(x=0, y=11)
(x=2, y=9)
Step-by-step explanation:
first equation substitution for x first.
y=11-x
plug into 2nd equation
(x+2)^2+(11-x-7)^2=20
this should lead you into a quadratics equation.
you get x=0, x=2.
do the same for y value this time, subbing in the x value
(11-y+2)^2+(y-7)^2=20
this also leads into a quad equation
solve and you get y=11, and y=9
Answer:
vv
Step-by-step explanation:
10.1(3) + 9.5(4) = <u>30.3</u> + 38.0
= 68.3
Answer:
The correct option is C
Step-by-step explanation:
Lets find the linear equations:
For Hours
Let
Number of hours in bookstore per week = x
Number of hours for babysitting per week = y
Total number of hours ≤ 16
So the first equation us:
x + y ≤ 16
y ≤ 16 - x
For Money
Let
Amount earned per hour from bookstore = $4
Total Amount earned from bookstore = 4x
Amount earned per hour from babysitting = $8
Total Amount earned from babysitting = 8y
Total Amount earned ≥ $56
So the second equation is:
4x + 8y ≥ 56
8y ≥ -4x + 56
y ≥ -(1/2)x + 7
