Here are the approximate populations of three countries, expressed in scientific notation: Panama: 4 x 10°: Peru: 3.2 x 107: Thailand: 7 x 107

1. Lin says that more than 20 times as many people live in Thailand than in Panama. Is this

correct? Explain how you know.

2. Decide what power of 10 to put on the label for the rightmost tick mark of this number line so

that all three countries' populations can be distinguished.

0

100

3. Label each tick mark as a multiple of a power of 10.

4. Plot and label the three countries' populations on the number line.

the speed is   miles per hour > is false

step-by-step explanation:

we know that  

a relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or

in a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

the graph shown in the figure represent a direct variation

the slope of the line represent the speed

for the point

substitute the values of x and y

the linear equation is equal to

statements

case a) it takes hours to go miles

the statement is true

because

substitute

for

find the value of y in the linear equation

> is correct

case b) the speed is   miles per hour

the statement is false

because the speed is

case c) the unit rate for the trip is

the statement is true

because the speed is equal to the slope of the linear equation

case d) it took minutes to go the first miles

the statement is true

because

substitute

for

find the value of y in the linear equation

> is correct

answer is  

a.

5.2 inches

hope you get this right.