Question

S = a + lw gives the cost s of building a table of width w ft. Find a formula for w in terms of s.

Answer 1

Answer:

w = (S - a) / l

Step-by-step explanation:

Given:

S = a + lw

Find a formula for w in terms of s

S = a + lw

Subtract a from both sides

S - a = a - a + lw

S - a = lw

Divide both sides by l

(S - a) / l = lw / l

(S - a) / l = w

Therefore,

w = (S - a) / l

It can also be written as (S - a ) ÷ l