On planet Gespli there are 10 pisquets to every 7 vreels.
We can write this as a ratio:

where
p is pisquets
v is vreels
If there are 40 vreels, we want to find the number of pisquets.
Let the number of pisquets be "p", so we can write:

Cross multiplying and solving for "p", we have:

There are around 57.14 pisquets
Rounding to nearest tenth (1 decimal place) = 57.1 pisquets
Since we don't know what pisquets are, we will keep the answer as a decimal