The answer to this is -700
teacher has 0.4 L of sea water , it means 0.4*1000 ml = 400 ml of sea water , she has.
Now every student has 5 ml spoon with them and there are a total of 20 students.
The teacher has asked every student to put 2 spoons of seawater into their container .
Now 1 spoon = 5ml
2 spoon = 10 ml
22 students are there it means
there are 44 spoons.
44 spoons = 44* 5 ml = 220 ml
It means Student put 220 ml seawater in total
And Teacher had 400 ml.
Now , Teacher is left with = 400 - 220 = 180 ml
Answer:
The answer to your question is
She ate 8 grapes
She gave to Tom 12 grapes
She has left 4 grapes
Step-by-step explanation:
Data
total grapes = 24
Portion eaten = 1/3
Portion given = 3/4
Process
1.- Divide 24 by three
24/3 = 8
Jenny ate 8 grapes
2.- Grapes left
24 - 8 = 16
- Divide 16 by 4
16/4 = 4
She gave to Tom 4 x 3 = 12 grapes
3.- The grapes she left were
24 - 8 - 12 = 4
X²-10x+15=0
x²-10x=0-15
x²-10x=-15
x(x-10)=-15
x=-15/(x-10)