The cost of a television was $500. the cost was increased by 10% and then decreased by 10%. what was the final price of the television? plz show the work : )

a. $450
b. $495
c. $500

495

Step-by-step explanation:

500 x .1 = 50

550 x .9 = 495

C, $500

Step-by-step explanation:

the answer would remain the same as its initial value ($500) because if it were to be increased by 10%, which would be 550, and then decreased by that same 10%, it would still end up being $500.

it would look like this:

$500+10%=$550

$550-10%=$500

i hope this helps :)

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

a precentage of 6th graders. the population is all 6th graders. let me know if i'm wrong, i hope this ! : )

step-by-step explanation: