Walter and Denise ordered a dessert to share at a restaurant. If Denise ate 1 8 of the dessert and Walter ate 4 5 of the dessert, what fraction of the dessert was left over?

3/40

Step-by-step explanation:

Walter and Denise ordered a dessert to share at a restaurant. If Denise ate 1/8 of the dessert and Walter ate 4/5 of the dessert, what fraction of the dessert was left over?

Let the total dessert be represented as = 1

The fraction of the dessert left over =

1 - (4/5 + 1/8)

Lowest Common Denominator = 40

1 - (4 × 8 + 1 × 5/40)

1 - (32 + 5/40)

1 - 37/40

Lowest Common Denominator = 40

40 × 1 - 37 × 1/40

40 - 37/40

= 3/40

Therefore, the fraction of dessert that is left over = 3/40

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

(-1,-0.5)

step-by-step explanation: