Answered

One blue whale weighed
4.2 x 105 pounds while another
weighed 2.6 x 105. Find the difference in weight and express your answer in scientific notation
2.4 x 10
1.6 x 10
1.6 x 10°

One blue whale weighed 4.2 x 105 pounds while another weighed 2.6 x 105. Find the difference in weight and express your answer in scientific notation 2.4 x 10 1 class=

Answer :

JayV2005

1.6 × 10⁵

To find the answer we first need to find the value of 4.2 × 10⁵ and 2.6 × 10⁵. We know that 10⁵ = 100000. Now we multiply 4.2 and 2.6 by 100000 which makes them 420000 and 260000. Now we find the difference= 420000 - 260000 = 160000. Now to put it in to scientific notation, we just divide it by 100000 so, 160000 ÷ 100000 = 1.6 × 10⁵ ( always remember to keep 10⁵ in your answer not 100000).

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