Rt²=2x-Rm
Help me right away very urgent

Step-by-step explanation:

If its x=RT^2/2+Rm/2

t = √ R ( 2 x − m R )/ R , t =- √ R ( 2 x − m R )/ R  

R=2x/t^2+m

m=-t^2+2x/R

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

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation: