Question

Annabelles homework is 75% complete.it took her 3 hours. how long should she estimate it will take her to complete her homework.

Answer 1

25℅ = 1 hour complete
100℅ = 4 hours to complete

Answer 2

It took her 4 hours to complete her homework

Explanation:

Let x be the time taken to complete her homework

From the question, Annabelles homework is 75% complete and it took her 3 hours, this implies that;

75% of the homework done = 3hours

75% × x = 3

`(75)/(100)` × x = 3

`(75x)/(100)` = 3

Multiply both-side of the equation by 100

`(75x)/(100)` × 100= 3×100

At the left-hand side of the equation, 100 will cancel-out 100

75x = 300

Divide both-side of the equation by 75

75x/75 = 300/75

x = 4 hours

It took her 4 hours to complete her homework