10 weeks is the number of weeks they have been saving their money.
Duane = $5 every two weeks
Mick = $2 every week.
Get the value of Duane's weekly contribution = $5 / 2 = $2.5
Duane's share + Mick's share = $45
$2.5x + $2.0x = $45 ===>> equation can also be x(2.5 + 2) = 45
$4.5x = $45
$4.5x / $4.5 = $45 / $4.5
x = 10 weeks.
To check:
$2.5(10) + $2(10) = $45
$25 + $20 = $45
<span>$45 = $45</span>
Answer:
(-7, 0) are the coordinates of the function.
Step-by-step explanation:
The given function is f(x) = (x²+3x-28)/(x+7).
We have to find the coordinates of hole of the given function.
To find the coordinates of the hole we will find the factors of the numerator first.
x² + 3x - 28 = x²+ 7x - 4x -28
= x(x + 7) - 4(x + 7)
= (x + 7)(x - 4)
Now we know that factor (x + 7) is common as denominator therefore these factors will get cancelled.
Therefore x + 7 = 0
Or x = -7
and for x = -7 the value of y = (x²+3x-28)/(x+7) = 0
Therefore the coordinates of the hole of the given function is (-7, 0).
The answer is C, if you multiply 105 by 0.40 you will find your answer