Subtracting 10x from the given equation gives
120 = 15x
Then dividing by 15 gives
8 = x
Zorah will have to play 8 hours in order to break even (cover her expenses exactly).
Set up a proportional fraction relating RSV and RTU. Before doing that, sort out what RT is equal to;
Now, we can equate SR/SV with RT/TU. This is something we can do because they are similar, and therefore should have equal ratios between sides.
Cross multiply them, and solve for x.
That being said, the little cutout at the top left claims the answer is 8. If you verify my answer, it works out.
the first answer common ratio is t2/t1=32/16
=2
I'm not sure of the rest
3 metres from one end to the third mark
Solution:
Total length of wood = 10 metre
Wood is marked into 10 equal length.
= 1 metre
Length of each marking = 1 metre
Number of metres from one end to third mark = 1 + 1 + 1 = 3 metre
The image of the marking is attached below.
Hence 3 metres from one end to the third mark.
They can show change on how much time passed.