The sales tax rate is 8%. if jim bought a new buick and paid a sales tax of $1,920, what was the cost of the buick before the tax?  

$24000

Explanation:

We are given that

Sales tax=8%

Sales tax amount=$1920

We have to find the cost of the Buick before the tax.

Let x be the cost of Buick before the tax.

According to question

8% of x=1920

Hence, the cost of the Buick before the tax=$24000

the answer is barium and copper bromide

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.