She practices for 40 minutes on Monday.
On Tuesday she practices for 5/8 of 40 minutes.
On Tuesday she practices for 25 minutes.
On Wednesday she practices for 4/5 of 25 minutes.
Hannah practices for
A. 20 minutes on Wednesday.
Answer:1/8
Step-by-step explanation:
If we divide both the top and the bottom by 5 since we know that 125 is a multiple of 5, we get 25/200. Divide both by 5 again to get 5/40 we then simplify to get 1/8.
Answer:
As
parts per million can be calculated by applying formula Ppm=(mass of solute/mass of solution)×1,000,000
In given condition
Mass of solute which is NaCl is 284g
Mass of solution which is watervis 100g
Ppm=284/100×1,000,000
=284000ppm
I hope it's helpful!