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strojnjashka [21]

2 years ago

5

A bank's monthly charge for maintaining an account is $.45 for each check written plus a service charge of $12.50. If x represen

ts the number of checks written during the month, which function models this situation?

2 answers:

ExtremeBDS [4]2 years ago

6 0

Answer:

0.45x + 12.50

Step-by-step explanation:

Maksim231197 [3]2 years ago

5 0

The function would be 12.50+.45x

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A store is located 10 miles from my house, it takes the average female 20 minutes to talk from the store back to her house. Why

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a freight train must approach a road crossing at 16 km/h. After passing through the intersection, the train speeds up rto 65km/h

grin007 [14]

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1 year ago

Whats the equation of the line that passes threw -4,4 and is parrell to the line y=1/2-4

vovangra [49]

Answer:

$y=\frac{1}{2}x+6$

Step-by-step explanation:

Given:

The equation of the known line is:

$y=\frac{1}{2}x-4$

A point on the unknown line is (-4, 4)

Now, since the two lines are parallel, their slopes must be equal.

Now, slope of the known line is the coefficient of 'x' which is $\frac{1}{2}$ .

Therefore, the slope of the unknown line is also $m=\frac{1}{2}$

Now, for a line with slope 'm' and a point on it $(x_1,y_1)$ is given as:

$y-y_1=m(x-x_1)$

Here, $m=\frac{1}{2}, x_1=-4,y_1=4$ . Therefore,

$y-4=\frac{1}{2}(x-(-4))\\\\y-4=\frac{1}{2}(x+4)\\\\y-4=\frac{1}{2}x+2\\\\y=\frac{1}{2}x+2+4\\\\y=\frac{1}{2}x+6$

Hence, the equation of the unknown line is $y=\frac{1}{2}x+6$ .

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