They are all the same amount of blocks.
Answer:
total amount = n (d-18)
total amount = dn - 18n
Step-by-step explanation:
given data
pay = $18 less than the original price
originally cost = d dollars
sell = n games
solution
we take original price paid for the game = d
and they will pay $18 less than the original price
so that can we say
d -18
and
when sold n games than the cost of n used games will be here
cost = n (d-18)
so it can express as
total amount = n (d-18)
total amount = dn - 18n
Answer:
x = 5 , y = 15
Step-by-step explanation:
You can solve this using substitution.
Let the quantity of cheese wafers be denoted by x and the quantity of chocolate wafers denoted by y
2x + 1y = 25
x + y = 20
These two equations are the answer to part A, (remember to include the above prompt which says what x and y denote).
For part B I used substitution because it was more applicable to the question then addition or elimination.
ACTUAL WORK
Set 2x + 1y = 25 equal to x
x = 25 - y / 2
Replace x with y in the second equation
(25 - y / 2) + y = 20
And solve for y
y = 15
Since we know what y is we can replace y in the second equation and find what x is
x + 15 = 20
Solve for x
x = 5
