Answer:
5w -6
Step-by-step explanation:
(W2 – 4w - 1)+(-5 + 5w2 – 3w)
combine like terms in the 2 groups
(-2w-1)+(-5+5w(2) -3w)
(-2w-1)+(-5+10w-3w)
(-2w-1)+(-5+7w)
now add/subtract all
5w -6
The first step is to define the system of equations.
Take x and y as the cost of a small box and a large box respectively.
Solve the system.
A small box costs $4 and a large box costs $4 too.
The answer to the question is 1.03
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
If each there are 40 pencils, then divide to find how much each pencil is.
37.20 / 40 = $0.93
Correct answer is D.
After solving, we see that buying the case of 40 pencils is cheaper than buying 40 individual pencils.
Hope This Helped! Good Luck!
