Jills fish weighs 8 times as much as her parakeet. Together the pets weigh 63 ounces. How much does the fish weigh

Question

I just need the answer

Answer 1

Hi Klayton, let p be the weight of the parakeet, then 8p equals the weight of the fish. Together they weight 63 ounces

 

Equation:

 

p + 8p = 63

 

9p = 63

 

Divide both sides by 9:

 

p = 7

 

The parakeet weights 7 ounces.

 

Weight of fish:

 

The fish weights 8 times as much as the parakeet, or 8 * 7 = 56 ounces

 

The fish weights 56 ounces.

 

Questions?

Answer 2

No, you need to know how to get to the answer so that you can deduce further problems using your own knowledge.

Here's what we know:

f = 8p (her fish is 8 times her parakeet's weight)

f + p = 73 (her pets together are 73 ounces)

 

Since we have a value for f, we can put that into the equation:

8p + p = 73

simplify:

9p = 73

Divide both sides by 9:

p = 8 1/9

 

Now that we know p, we can solve for the fish:

f = 8 * 8 ¹/₉

f = 64 ⁸/₉

 

Check:

8 ¹/₉ + 64 ⁸/₉ = 73

73 = 73

 

By the way, you may want to check if the problem says 72 instead of 73. These sorts of problems usually go for evenly divisions instead of rationals.

Answer 3

Weight of the parakeet is P.

Weight of the fish is F.

 

F = 8p

F + P = 73

 

Rearrange the first formula as such:

F = 8P

F - 8P = 0

 

Subtract the second formula from the first.

 

F - 8P = 0

-F - P = -73

 

-9P = -73

P = 73/9 = 8.11

 

F = 73 - 8.11 = 64.89

 

Just to make sure, are you sure the combines weight isn't 72 ounces?  Because that would come out to a round number.

 

Hope this helps, Klayton!

Answer 4

Typically as a tutor I try to explain & help others as opposed to simply giving the answer:

f=8p

f+p=63

 

8p+p=63