Answer:
C
10 x (p+2) = 30
10 x 2 = 20 30 - 20 = 10 10 ÷ 10 = 1
P = 1
10 x (1 + 2) = 30
Answer:
4x+4=-3x-10
4x+3x=-10-4
x= -14
Step-by-step explanation:
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
