Percentage question, need help please!?

Question

scientists have discovered 1,022,000 species of animals. Vertebrates make up 42,000 species while invertebrates make up 980,000 species. How do I calculate the percentage of animals that are invertebrates??? Can you please tell me how you got your answer?

thanks for helping me!

Answer 1

980,000/1,022,000=0.9589

0.9589 x 100= roughly 96 %

Answer 2

ya it's the NUMBER OF Invertebrates divided by/over the total no. multiplied by 100 over 1. watch this:

     980,000/1022000= 0.95890410958904109589041095890411 x 100

  

                      95.890410958904109589041095890411%

which can be rounded off to 96%

Answer 3

You make a proportion with % over 100 equals amount asked for over total amount

So x/100 = 980,000/1,022,000

Now cross multiply: 1,022,000x = 98,000,000

and divide both sides by 1,022,000

getting x = 95.89%

Answer 4

the answer is 95.890410958904109589041095890411

any time u need to figure out a precent use this it is extremely helpful

is/of = %/100

it basicly mean this: in this question u need to figur out what PRECENT OF 1022000 IS 980000

1st so u put 1022000 where the of goes and u put 980000 where the is goes and cause u dont know the precent is u put an x there

2nd then u cross multiply

then u divide ur variable into ur other number and that gives u ur answer

u can use this on any precent prblem

hope it was helpful

Answer 5

You put the number of invertebrates species over the total species so it is a fraction. You end up having 980,000 divided by 1,022,000 which on my scientific calculator comes out to .9589041096 or about 96% when rounded.  ( You move the decimal over 2 spaces to the left. ex:  95/100 = .95/1 = .95 = 95%  they are all the same)