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TiliK225 [7]
3 years ago
10

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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Keywords: multiplication, division

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