Question

In 2010, the estimated population of Chicago was 2.7×106 people. The population of Illinois that same year was about 4.76 times this number. Which expression shows the approximate population of the state of Illinois in 2010?

Answer 1

1.29 * 10^7 people

It makes sense.

Answer 2

Let

x--------> the estimated population of Chicago in 2010

y--------> the estimated population of Illinois in 2010

we know that

`x=2.7*10^(6)\ people` ------> equation 1

`y=4.76x` ------> equation 2

Substitute equation 1 in equation 2

`y=4.76*2.7*10^(6)`

`y=1.2852*10^(7)\ people`

`y=12,852,000\ people`

therefore

the answer is

the approximate population of the state of Illinois in 2010 is

`y=12,852,000\ people`