Annabelles homework is 75% complete.it took her 3 hours. how long should she estimate it will take her to complete her homework.
2 answers:
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
× x = 3
= 3
Multiply both-side of the equation by 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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Answer:
see explanation
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
(7)
Here m = - 3 and (a, b) = (5, 1), thus
y - 1 = - 3(x - 5) ← equation of line
(8)
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = A(- 2, 1) and (x₂, y₂ ) = B(- 1, 3)
m = = 2
Using any of the 2 points as (a, b)
Using m = 2 and (a, b) = (- 2, 1), then
y - 1 = 2(x - (- 2)), that is
y - 1 = 2(x + 2) ← equation of line