10. Which point is the solution for this System of equation?

Through substitution, you plug the second equation into the first equation, which would be: 2x + x - 3 = 3. Then combine like terms, which would be: 3x = 6. Divide both sides by 3 to get: x = 2. Now use this x-value in the first equation: 2 (2) + y = 3 ; 4 + y = 3. Now combine like terms, once again, to get y = -1. Therefore the solution to this system of equations is (2,-1) To verify, you will get 3 if you plug in the respective values in to the first equation.

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation: