When solving a system of equations, Jared found y = x + 10 for one equation and . Nicole found x = y – 10 for the same equation and substituted y – 10 for x in the . Jared and Nicole are correct because they manipulated the equation right. . y as a function of x then substitute it to the y in the other equation and solve for x.

They are both correct in their procedure. Nicole solved for one variable in the equation, while Jared solved for the other variable.

Step-by-step explanation:

Notice that if you have the equation  y = x + 10 in a system of equations, the most immediate thing to do is to try to use the fact that "y" is the same as "x + 10" to substitute in the other equation of the system.

But, this same equation can also be used to solve for the other variable "y", by simply subtracting 10 from both sides, which gives:

y - 10 = x

So now, one can use "y-10" to substitute for x in the other equation.

Both procedures are correct, and simply will lead to finding a different variable first when solving the equation.

Both of them are correct

Step-by-step explanation:

Nicole is trying to get the variable alone, and jarred is trying to get the Y variable. However, they are both using the same process.

They are both correct.

Step-by-step explanation:

As we can see, it does not matter whether you plug in x or y in a system of equatins. One thing somebody might be skeptical about in this equation is that one of the equations does not contain a variable. BUT, if reading closer, one can see that both x and y have to be in one of the equations to make the other true.

Hope this helped!

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 

The answer is in the image 

The solution is in the following image