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
The answer is 286.
y = 70 + 18(x)
x = 12
y = 70 + 18 * 12
y = 70 + 216
y = 286
Answer:
oh that easy look it uppp
Step-by-step explanation:
Answer: 7.11/9=0.79 per jar
956.4/15.9=60.2 average speed
179.3/61.5=2.9 miles
38.86/3.9=9.964
Step-by-step explanation:
division and a calculator.
A conditional statement is always true backwards and forwards
