Question

Jason was some Goldfish at the state fair during the first week ,1/5 of them died and during the second week 3/8 of those still alive at the end of first week died,what fraction of original Goldfish were still alive after five weeks.​

Answer 1

Answer: 1/2 or 5 goldfish are still alive after the first 2 weeks.

Step-by-step explanation:

Turn 10 into a fraction and multiply by 1/5 to see how many died that first week

10/1×1/5=10/5=2

10–2=8 left after one week

3/8 of the surviving fish die the second week so we repeat to see how many died the second week

8/1×3/8=24/8=3

8–3=5

So 5 left after 2 weeks. To express that as a fraction we convert them both to fractions and divide

5/1÷10/1=?

Which is the same as

5/1×1/10=5/10=1/2

So after 2 weeks 1/2 of the goldfish have survived

Answer 2

Answer:

Answer: 1/2 or 5 goldfish are still alive after the first 2 weeks.