Answer:
(-9,-2)
x= -9
y= -2
Step-by-step explanation:
x+5y=-19
x-5y=1
solve the equation
x+5y=-19
x=1+5y
substitute the value of x into an equation
1+5y+5y=-19
add 5y to 5y
1+10y=-19
subtract 1 to -19
10y=-20
divide both sides by 10
y= -2
substitute the value of y into an equation
x=1+5•(-2)
multiply 5 to -2
1+-10
add 1 to -10 but since 10 is a negative the equation is subtraction.
x= -9
(-9,-2)
<span>a function exists when there is only one output for any given input</span>
Answer:
16 rides
Step-by-step explanation:
Option 1 . Admission fee = $10
Each ride = $0.50
Option 2 . Admission fee = $6
Each ride = $0.75
Let no. of rides be x
So, cost of ride according to option 1 = 0.50x
So, total cost after having x rides according to option 1 :
= 10+0.50x ---1
Cost of ride according to option 2 = 0.75x
So, total cost after having x rides according to option 2 :
= 6+0.75x --2
Now to find the beak even point i.e. having the same cost
Equate 1 and 2
![10+0.50x=6+ 0.75x](https://tex.z-dn.net/?f=10%2B0.50x%3D6%2B%200.75x)
![10-6= 0.75x-0.50x](https://tex.z-dn.net/?f=10-6%3D%200.75x-0.50x)
![4= 0.25x](https://tex.z-dn.net/?f=4%3D%200.25x)
![\frac{4}{0.25} =x](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B0.25%7D%20%3Dx)
![16=x](https://tex.z-dn.net/?f=16%3Dx)
Thus for 16 rides , the two options have the same cost .
Hence the break even point is 16 rides
The answer to the question
Answer:
1, 2, 3, 4, and 5.
Step-by-step explanation:
7x1=7<42
7x2=14<42
7x3=21<42
7x4=28<42
7x5=35<42