An ant weighs about 2 x 10^-5 lb. There are about10^15 ants on earth. How many pounds of an ants are on earth?

to get the total weight, we multiply them:

2x10^(-5) * 1x10^15
to do this, first we multiply the first terms or the terms with no raised exponent,, thus that would be the 2 and 1:
2 * 1 = 2
next we multiply the second terms or the 10 raised to exponent,, to do this, recall that if the terms that we will multiply have the same base (here the base is 10) we can simply add the exponents:
10^(-5) * 10^15 = 10^(-5+15) = 10^10

finally we multiply the answers we got:
2 x 10^10 pounds

hope this helps~ :)

To find the total weight of ants on Earth, we need to multiply the weight of a single ant by the total number of ants on Earth.

Given:
Weight of a single ant = 2 x 10^-5 lb
Total number of ants on Earth = 10^15

Step 1: Multiply the weight of a single ant by the total number of ants on Earth.
2 x 10^-5 lb * 10^15 ants

Step 2: Simplify the expression by multiplying the values and adding the exponents.
= 2 * 10^-5 * 10^15 lb [Multiply the numbers and add the exponents]
= 2 * 10^(15 - 5) lb [Add the exponents]
= 2 * 10^10 lb [Simplify]
= 2 * 10,000,000,000 lb [Convert exponent notation to decimal]

Therefore, there are approximately 20,000,000,000 lb (20 billion pounds) of ants on Earth.

To calculate the total weight of all the ants on Earth, you need to multiply the weight of a single ant by the total number of ants. In this case, the weight of a single ant is 2 x 10^-5 lb, and the total number of ants is 10^15.

The units here are not consistent, so we should convert the weight of a single ant to match the total number of ants by multiplying it by 10^15. This will give us the weight of all the ants on Earth in pounds.

Let's break down the calculation step by step:

Weight of a single ant: 2 x 10^-5 lb
Total number of ants: 10^15

Weight of all the ants on Earth = (Weight of a single ant) x (Total number of ants)

Weight of all the ants on Earth = (2 x 10^-5 lb) x (10^15)

To simplify the calculation, we can rewrite 10^-5 as 1/10^5, and 10^15 as 10^5 x 10^10:

Weight of all the ants on Earth = (2 x 1/10^5 lb) x (10^5 x 10^10)

Now we can simplify the expression:

Weight of all the ants on Earth = 2 x 10^10 lb

Therefore, there are approximately 2 x 10^10 pounds of ants on Earth.