Atank contains 60 kg of salt and 2000 l of water. a solution of a concentration 0.015 kg of salt per liter enters a tank at the rate 7 l/min. the solution is mixed and drains from the tank at the same rate. let y be the number of kg of salt in the tank after t minutes. write the differential equation for this situation.

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

show us the graphs dude

step-by-step explanation:

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1