100y+x=230
150y+x=320
Y being the price per kilogram of steel bar, x being the added delivery fee.
If you were to solve the equaltion it would go x=230-100y by changing the first equation around the replacing that for the x int he second group, so you would get 150y+230-100y=320 or 50y=90 So Y=9/5dollars per kilogram. Or $1.8per kilogram, the delivery fee being $50
He can walk <u>1.6 kilometers in one hour</u> going at a constant speed of 400 meters every 15 minutes.
If 20 sandwiched are cut into 3rd's that 20*3 which equals 60.
20 * 30 = 60
So, there are 60 sandwich pieces.
Answer:
i think its 55 :>>>>>>>
Step-by-step explanation:
Answer: k=65
Step-by-step explanation:
