Don works in home construction. he determined that the function t(a)=144a/9.252 gives the total number of 9 in. tiles needed to cover an area of a square feet, when spacing the tiles a quarter inch apart. find t(400) and explain what it means.

6,226 tiles of 9 in are needed to cover an area of 400 square feet

Step-by-step explanation:

Let

A -----> an area in square feet

t(A) ---> the total number of 9 in. tiles needed

we have

For A=400 ft^2

substitute in the equation and solve for t

That means -----> 6,226 tiles of 9 in are needed to cover an area of 400 square feet

d

step-by-step explanation:

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation: