Question

An adult blue whale can eat 4.0 x 10^7 krill in a day. At that rate, how many krill can an adult blue whale eat in 3.65 x 10^2 days?

Answer 1

4.0 x 10^7 = 40000000
3.65 x 10^2 = 365
40000000 x 365 = 14600000000 or 1.46 x 10^10
Hope this helps!!

Answer 2

Answer:

$1.46\times 10^{10}$ krill.

Step-by-step explanation:

We have been given that an adult blue whale can eat $4.0\times 10^7$ krill in a day. We are asked to find the number of krill an adult whale can eat $3.65\times 10^2$ days.

$\text{Krill eaten in given time}=3.65\times 10^2\cdot 4.0\times 10^7$

Using exponent property $a^b\cdot a^c=a^{b+c}$, we will get:

$\text{Krill eaten in given time}=3.65\times 4.0\times 10^{7+2}$

$\text{Krill eaten in given time}=14.6\times 10^{9}$

$\text{Krill eaten in given time}=1.46\times 10^{10}$

Therefore, an adult whale can eat $1.46\times 10^{10}$ krill in $3.65\times 10^2$ days.