Mr. Smith and Mr. Stein were driving to a business meeting to 70 miles from their office. Mr. Smith drove the first y miles, then Mr. Stein drove the rest of the way.

Question:

Write an algebraic expression for how many miles Mr.Stein drove.

(70 - y) miles

Step-by-step explanation:

Given

Distance to business meeting from office = 70 miles

Mr. Smith drove the first y miles

Let x = the remains distance driven by Mr. Stein

x + y = 70 Make x the subject of formula

x = 70 - y

So, the expression is (70 - y) miles

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,