Based on the way these stations are connected, we can infer that there are <u>56 tubes. </u>
<h3>Number of tubes in Spaceland </h3>
Each pair of stations have 2 tubes. This means that every station is connected to each of the others.
We can therefore infer that each station has 7 tubes to the other stations.
The total number of tubes would therefore be:
= Number of stations x Number of tubes per station
= 8 x 7
= 56 tubes
In conclusion, there are 56 tubes.
Find out more on proportionality problems at brainly.com/question/24822176.
Answer:
Step-by-step explanation:
Each year, the balance is multiplied by (1+r) where r is the annual interest rate.
(a) Balance at the end of year 1:
$6000×1.09 = $6540
(b) Balance at the end of year 2:
$6540×1.09 = $7128.60
7x0.6=4.2 30x0.6=18
7x2.4=16.8 30x2.4=72
7x1.75=12.25 30x1.75=52.5
To solve this problem, set up and solve a system of equations. The variables b and m will represent a bread loaf and milk jug, respectively:

I would solve using substitution. Take one of the equations and set it equal to one of the variables, for example:

Now, plug this into the other equation for m and solve for b:

We now know that a loaf of bread costs $2.50. Plug this value in for b in the first equation and solve for m:

One jug of milk costs $1.50 and one loaf of bread costs $2.50.