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The estimated number of dogs is 6.99 x 107 The estimated number of cats is 3.61 x 107 The estimated number of birds is 8.3 x 10 The power of 10 in 8.3 x 10 is 6, which is less than the power of 10 in the other two numbers. To make the calculation simpler, convert this number so the exponents are all the same. Multiply and divide 8.3 x 10 by 10 to increase its exponent by 1: 8.3 x 10% = 1.8.3 x 100 13.106.10 = 0.83 x 107 Part B Now that the three numbers have the same power of 10, find the sum using the Distributive Property.Please help me

The estimated number of dogs is 699 x 107 The estimated number of cats is 361 x 107 The estimated number of birds is 83 x 10 The power of 10 in 83 x 10 is 6 whi class=


Answer :

You have the following information:

- estimated number of dogs = 6.99 x 10⁷

- estimated number of cats = 3.61 x 10⁷

- estimated number of birds = 0.83 x 10⁷

In order to find the sum of the previos quantities, by using the distribution property, you take into account that 10⁷ is a factor present in all given numbers. Thus, you can sum all the coefficients before the factor 10⁷, just as follow:

6.99 x 10⁷ + 3.61 x 10⁷ + 0.83 x 10⁷ use distribution property

= (6.99 + 3.61 + 0.83) x 10⁷ simplify terms inside the parenthesis

= 11.43 x 10⁷

Hence, the answer is 11.43 x 10⁷

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