Question

The biggest bowl of mashed potatoes ever made weighed 4.56 x 10^4 pounds and

Answer 1

We have been given that the biggest bowl of mashed potatoes ever made weighed $4.5\times 10^4$ pounds and  was created at the Iowo State Fair in 2005. The biggest deep dish pizza ever  made was in Chicago in 1998. It weighed a whopping $1.23\times 10^5$ pounds.

To find how much pizza weighs more than bowl of mashed potatoes, we will subtract weight of mashed potatoes from weight of pizza.

$1.23\times 10^5-4.56\times 10^4$

$1.23\times 100000-4.56\times 10000$

$123000-45600=77400$

Now we will convert $77400$ into scientific notation as:

$77400=7.74\times 10^4$

Therefore, the pizza weighs $77400=7.74\times 10^4$ pounds more than the bowl of mashed potatoes.