Une voiture a parcouru 50 km à la vitesse moyenne de 100 km/h puis a parcouru 100 km à la vitesse moyenne de 50 km/h. Quelle a été sa vitesse moyenne en km/h sur l'ensemble du trajet ? Sa vitesse moyenne sur l'ensemble du trajet a été de

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3

a

step-by-step explanation:

a

i believe the answer is 68cm

step-by-step explanation:

i just took 34 x 2 because the space between v and y is the same as y to k.

i believe that the answer is

b. y-1=-2(x-4)

hope this !