5x + 3y = 9
4x - 2y = -6
Write as a ordered pair

(0,3)

Step-by-step explanation:

Solving Simultaneously, 4(5x + 3y = 9)

-5(4x - 2y = -6)

then, 20x + 12y = 36

-20x + 10y = 30

adding the two equations we get,

22y=66, hence y= 3

then substituting y in one of the equations

5x + 3(3) = 9 hence x = 0

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: