chegg use the divergence theorem to evaluate ∫∫f⋅ds where f=⟨5x2,3yz2,−10x1z⟩ and is the boundary of the sphere x2 y2 z2=22 oriented by the outward normal.

Given:

Rate of simple interest = 5%

Time = 4 years

Total interest = $160

To find:

The amount borrowed by Austin from a credit union.

Solution:

The formula for simple interest is:

Where, P is principal, r is the rate of interest and t is the number of years.

Putting in the above formula, we get

Multiply both sides by 5.

Therefore, Austin borrowed $800 from a credit union for 4 years.