Question

The average grain of salt is 0.0003 meters wide. Rhinovirus, which causes the common cold, is 0.00000003 meters wide.
How many times wider is a grain of salt than Rhinovirus? Choose the correct answer.

1 × 102 times
1 × 103 times
1 × 104 times
1 × 105 times

Answer 1

it asks how many times wider the grain of salt is compared to Rhinovirus

so you have to divide the size of the grain of salt by the size of Rhinovirus

Answer 2

we want to know how much BIGGER the grain of salt is so you have to divide the bigger number by the smaller number

so what is

0.0003 / 0.00000003 =

Answer 3

google said 10,000 d;

Answer 4

now can you convert that into scientific notation?

remember

100 is 10^2
which is the same thing as 1 * 10^2

100 has 2 zeroes so 10^2

how many zeroes does 10,000 have?

Answer 5

4 I think-

Answer 6

what's there to think about?

all you have to do is count

be confident ;b

but yes, there's 4

so if 100 has \(\color{red}{2}\) zeroes and that's the same as \(1 \times 10^\color{red}{2}\)

then 10,000 which has 4 zeroes, should be ____

which would make what the correct answer choice?

Answer 7

C ?

Answer 8

You got it

Answer 9

alr tytyty

Answer 10

np ywywyw