Keith and Michelle went out to dinner. The total cost of the meal, including the tip, came to $53.70. If the combined tip came out to $9.60, and each
friend spent an equal amount, how much did each friend pay not including
the tip? WRITE INEQUALITY - AND ANSWER

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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c.)

step-by-step explanation: