70% of Hassan's collection of goldfish died. if he has 60 survivors, how many did he have originally?

Hassan originally had 200 goldfish

Step-by-step explanation:

Multiply 60 by 100, which will get you 6,000, then divide by 30 to get 200. The 100 is for the total percentage, the 30 is the percentage left.

200goldfish

Step-by-step explanation:

since 30percent(100_70)is60 what about 100percent

100percent/30percent multiplied by 60goldfish=200

Therefore the answer is 200goldfish

Let s = one side of the square
so s/4 = the shorter side of one of the rectangles while s = the longer side of a rectangle

10s/4 = the perimeter of one rectangle so
10s/4 = 25
       s = 10
4s = perimeter of the square
4(10) = 40 = perimeter of the square = your answer