Question

1-8: MathXL for School: Practice & Problem Solving

0 Assignment is past due (10/27/22 11:59pm)
Question Help
The populations of Cities A and B are 3.7 x 105 and 2,115,000, respectively. The population of City C is twice the population
of City B.
The population of City C is how many times the population of City A?
1.8.PS-15
The population of City C is times the population of City A.
(Round the final answer to the nearest whole number as needed. Round all intermediate values to the nearest tenth as needed.)

Answer 1

11

Explanation:

You want the ratio of the populations of city C and city A, given city C is 2 times the 2,115,000 population of city B, and city A's population is 3.7×10⁵.

Evaluation

The ratio of interest is ...

2B/A = 2(2115000)/(3.7×10⁵)

A calculator provides an easy answer to the value of this expression. (See attached.)

City C is about 11 times the population of City A.

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Additional comment

If you want to work this out "by hand", you will need to find the quotient of ...

4230000/370000 = 423/37 = 11 17/37 ≈ 11

because 17/37 < 1/2.