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

Mathematics

2 answers:

NemiM [27]3 years ago

7 0

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

Anna71 [15]3 years ago

7 0

Answer:

It took her 4 hours to complete her homework

Step-by-step 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

$\frac{75}{100}$ × x = 3

$\frac{75x}{100}$ = 3

Multiply both-side of the equation by 100

$\frac{75x}{100}$ × 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

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