1. y = 8/11x + 10/11
2. y = -3/2x - 13/7
Step-by-step explanation:
1. -8x + 11y = 10
Add 8x to both sides
11y = 8x + 10
Divide both sides by 11
y = 8/11x + 10/11
2. 6 = -4y - 11x
20 = -10x - 10y
26 = -14y - 21x
Add 21x to both sides
-14y = 21x + 26
Divide both sides by -14 and simplify!
y = -3/2x - 13/7
1. y = 8/11x + 10/11
2. y = -3/2x - 13/7
Step-by-step explanation:
1. -8x + 11y = 10
Add 8x to both sides
11y = 8x + 10
Divide both sides by 11
y = 8/11x + 10/11
2. 6 = -4y - 11x
20 = -10x - 10y
26 = -14y - 21x
Add 21x to both sides
-14y = 21x + 26
Divide both sides by -14 and simplify!
y = -3/2x - 13/7
Question 1:
For this case we must solve the following system of equations by the method of elimination:
We multiply the first equation by 2:
We have the equivalent system:
We add the equations:
We divide between 5 on both sides of the equation:
We find the value of the variable "x":
We divide by 8 on both sides of the equation:
Thus, the solution of the system is:
Question 2:
For this case we must solve the following system of equations by the method of elimination:
We multiply the first equation by 10:
We multiply the second equation by -4:
We have the equivalent system:
We add the equations:
We divide by -70 on both sides of the equation:
We find the value of the variable "y":
We divide between -4 on both sides of the equation:
Thus, the solution of the system is:
Question 1:
For this case we must solve the following system of equations by the method of elimination:
We multiply the first equation by 2:
We have the equivalent system:
We add the equations:
We divide between 5 on both sides of the equation:
We find the value of the variable "x":
We divide by 8 on both sides of the equation:
Thus, the solution of the system is:
Question 2:
For this case we must solve the following system of equations by the method of elimination:
We multiply the first equation by 10:
We multiply the second equation by -4:
We have the equivalent system:
We add the equations:
We divide by -70 on both sides of the equation:
We find the value of the variable "y":
We divide between -4 on both sides of the equation:
Thus, the solution of the system is:
This is the answer of your question.
This is the answer of your question.
Cost of 7 gallons=$24.50
Cost of 1 gallon=24.50/7=3.5
Cost of 15 gallons=15*3.5=52.5
Cost of 15 gallons will be $52.5
For 1 flavor there are 9 topping
Therefore, for 5 different flavors there will be 5*9 choices
No of choices= 5*9
=45
Salesperson will make 6% of 1800
=(6/100)*1800
=108
Salesperson will make $108 in $1800 sales
It will provide an instant answer!