Answer:
The price of a drink is $9.00
Step-by-step explanation:
Let
x ----> the price of one bag of popcorn
y ----> the price of one drink
we know that
Piper spends a total of $55.50 on 6 bags of popcorn and 2 drinks
so
----> equation A
Skylar spends a total of $86.00 on 8 bags of popcorn and 4 drinks
so
----> equation B
Solve the system by graphing
Remember that the solution of the system is the intersection point both lines
using a graphing tool
The solution is the point (6.25,9)
see the attached figure
therefore
The price of a drink is $9.00
Answer:
Lesser = - - 7 = -10.317
Greater = + - 7 = -3.683
Step-by-step explanation:
I am assuming you are asking for the lesser x solution and greater x solution.
(x + 7)^2 – 11 = 0
(x + 7)^2 = 11
x+7 = ±
x = ± - 7
Lesser = - - 7 = -10.317
Greater = + - 7 = -3.683
Answer:
40 girls
Step-by-step explanation:
Set up a proportion where x is the number of girls in band class:
=
Cross multiply and solve for x:
3x = 120
x = 40
So, there were 40 girls in band class.