The double number lines show the ratio of minutes to days.
minutest+
h
t
-fh
4320
dayst+
+
+
+
+
+
how many minutes are in 2 days?

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post

The variables should add up to equal 1