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Mathematics 18 Online
lizzie777:

Celeste and Dora both offer guitar lessons. Celeste charges an initial fee of $5.00, and an hourly rate of $7.25. Dora has an initial fee of $10.25, and an hourly rate of $6.50. The equation 7.25h + 5 = 6.5h + 10.25 represents the scenario. At how many hours of instruction will the cost be the same for both instructors?

dude:

In here you are given the equation needed to find the hours You need to isolate h \(7.25h + 5 = 6.5h + 10.25\) You want to keep the h values on one side of the equation and the rest on the other Are you unsure on how to isolate variables?

lizzie777:

a little bit

darkknight:

So when you are isolating variables. Assuming there is only one variable that you are working with, for example, h, and you have an equation like 9h-6 = 6h+9 You want to put the variable terms on one side of the equation and put the non-variable terms on the other side. So in the example above, you want to subtract 6h on both sides and add 6 to both sides. You want to make sure that the h terms are one side and the non-variable terms are on the other side. Than you can subtract/add, after that you can isolate to find the variable by itself by dividing or multiplying

darkknight:

Ive been noticing that most of your questions are about isolating variables. So if you need help, you can make a separate post about that, and someone can answer it

lizzie777:

ok

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