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erastovalidia [21]
3 years ago
6

Paul is comparing the cost of cell phone services. At CellCoA, the phone he wants costs $305 and the unlimited calling plan cost

s $45 per
month. At CellCoB, Paul can purchase the same phone for $350 and get an unlimited calling plan for $30 per month. In how many months
will both plans cost the same?
These equations, which are graphed below, represent the situation.
y = 45x + 305
y= 30x + 350
Here, x represents the
number of months and y represents the amount paid.
80
70
60
10)

Mathematics
1 answer:
Fudgin [204]3 years ago
7 0

Answer:

440

Step-by-step explanation:

305+ (45*3)= 440

350+ (30*3)= 440

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An equation parallel and perpendicular to 4x+5y=19
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Answer:

An equation parallel to 4x + 5y = 19 would be y = -4/5x +12.

An equation perpendicular to 4x + 5y = 19 would be y = 5/4x + 10.

Step-by-step explanation:

The equation given represents a linear equation in Standard Form (Ax + By = C).  Lines that are parallel to each other go the same direction and don't touch, so their slopes must be the same.  However, lines that are perpendicular go in opposite directions and intersect, so their slopes must be the direct opposite of each other.  In order to find the slope, you must first convert from the Standard Form given to Slope Intercept Form (y = mx +b).  When you solve the given equation for 'y', you get: y = -4/5x + 19, where the slope = -4/5.  To make a parallel equation, simply keep the same slope and choose a different y-intercept ('b').  To make a perpendicular equation, take the direct opposide of your slope 5/4 (positive) and choose a different y-intercept.  

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3 years ago
What is the distance and midpoint of (-2,-2) and (3,5)​
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Step-by-step explanation:

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2 years ago
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Fifteen times the square of a non-zero number is equal to 20 times number.What is the number? Its not 4/3
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The number is (2√3) / 3

To find the missing number, convert what it says in words to an equation:
15 {x}^{2}  = 20x
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Answer:

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Step-by-step explanation:

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