So the complete amount of fishes were 100%
70% died and 60 are left...
so 100% - 70% = 60
100% - 70% = 30%
30% = 60 fishes...
so 10% = 20 fishes
If you complete that percentage to 100
10% = 20, 100% 200
First think out the equation, once you've done that multiply 3 by 25 to get 75
Answer:
x=1/14 and y=1/12
Step-by-step explanation:
7x+5y+12+7x+7y=14
⇒14x+12y=2
and set x and y in 0
then you will have 14*(1/7)=2 and 12*(1*6)=2
and you want somthing that makes x + y =2
so you sett 14*x=1 and 12*y=1
that is if i did noy misunderstanding the question
Answer:
- b = P - a - a - B
- b = P - 2a - B
Step-by-step explanation:
The perimeter is the sum of the lengths of the sides, so is ...
P = B + a + b + a
Subtracting the terms that are not "b" from both sides of the equation, you get
P - a - a - B = b
Swapping sides of the equal sign, this matches the first choice:
b = P - a - a - B
The two "-a" terms are "like terms" so can be added together. The result matches the second choice.
b = P - 2a - B
