Step-by-step explanation:
you are "hiding" some more information (like how much they made together).
without that we cannot calculate the actual values.
all I can do is set up the equations expressing the given relations between the parts of the total :
a = amount Alberto made
b = amount Benjamin made
c = amount Carlota made
b = 3×a
c = 2×b = 2× 3×a = 6×a
that's it.
your see ? now we need something that "ties" all 3 together, an equation of all 3 variables, where we can use the first 2 equations (by substitution) and then solve for the remaining third variable.
and that is missing.
if it is something like "together they made x", then we would have
a + b + c = x
a + 3a + 6a = x
10a = x
a = x/10
b and c we get then from the first 2 equations by simply using the calculated value of a :
b = 3×(x/10) = 3x/10
c = 6×(x/10) = 6x/10 = 3x/5
Answer:
The cost of comic is $2.8 and the cost of magazine is $4.2.
Step-by-step explanation:
Given : Eugene bought 27 comics and 12 magazines for $126. If 3 comics cost as much as 2 magazines.
To find : The cost of each comic ?
Solution :
Let the cost of a comic be 'c'
the cost of a magazine be 'm'
If 3 comics cost as much as 2 magazines.
i.e. 
....(1)
Eugene bought 27 comics and 12 magazines for $126.
i.e. 
.....(2)
Substitute the value of c from (1) in (2),
Substitute in (1),
So, The cost of comic is $2.8 and the cost of magazine is $4.2.
Answer:
2x+3+5x+6 = 7x+9
Step-by-step explanation:
2x + 3 + 5x + 6
= 2x + 5x + 3 + 6
= 7x + 9
Hope it helps
Answer:
14x4y2
Step-by-step explanation:
