Choose what you think the expressions below best represent within the context of the word problem. a man traveled a certain number of miles by automobile and then nine times as far by airplane. his total trip was 600 miles in length. how far did he travel by plane? x represents miles by . 9x represents miles by .

240 miles.

Step-by-step explanation:

Let a man travelled  by an automobile=x miels

and a man travelled distance  by an airpalne  was 9 times the distance travelled by an  automobile. Therefore, the expression is .

According to question , total distance travelled in trip is equal to 600 miles .

Therefore , the expression for this

Hence,

implies that x=

Distance travel by an automobile is 60 miles .

therefore ,the man distance travel =.

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc