Question

Evaluate the variable expression xyz for the given values of x, y, and z. x = 4/5 , y = −15, z = 7/8

Answer 1

The answer is -10.5

Explanation:

You can just simply multiply the numbers above.

xyz=(4/5)*(-15)*(7/8)=-10.5

Answer 2

xyz = - 21 / 2

Explanation:

xyz = (4/5)(-15)(7/8) = (4×-15×7)/(5×1×8)

= (4×-3×5×7)/(5×1×4×2)...... because: 15 = 5×3 and 8 = 4×2

xyz = - 21 / 2