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gulaghasi [49]
3 years ago
5

A dealership has 5 red cars out of 20 cars. Based on his ratio, predict how many red cars the dealership would have if they had

100 cars A.4 red cars B.25 red cars C.400 red cars D.75 red cars
Mathematics
1 answer:
insens350 [35]3 years ago
6 0
5 out of 20 cars are red

Therefore 1 out of 4 cars is red

1/4 of cars are red

1/4 x 100 = 25 red cars

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Determine the slope of the line that passes through the points (5,7) and (-1,9).
oee [108]

Hey!

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Slope Formula: m = \frac{y2 - y1}{x2 - x1}

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Solution:

m = \frac{y2 - y1}{x2 - x1} \\m = \frac{9 - 7}{-1 - 5}\\m = \frac{2}{-6} \\m = \frac{1}{-3}

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Answer:

\large\boxed{-\frac{1}{3} }

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Hope This Helped! Good Luck!

4 0
3 years ago
PLZ HELP ILL MARK YOU BRAINLEST ‼️<br><br>a) 120°<br><br>b) 50°<br><br>c) 70°<br><br>d) 180°​
Alexus [3.1K]

Answer:

120°

Step-by-step explanation:

Add the 2 opposite angles to find the exterior angle.

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6 0
3 years ago
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A ball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. The ball's height h (in feet) after t s
ella [17]

Answer:

t = 2.52 seconds

Step-by-step explanation:

h=139-15t-16t^2

We want to know when the ball hits the ground

That would be when h=0

0 = 139-15t-16t^2

We can use the quadratic formula to find t

t = -b ± sqrt(b^2-4ac)

       ----------------------

          2a

where a = -16   b = -15  and c = 139

t = -(-15) ± sqrt((-15)^2-4(-16)139)

       ----------------------

          2(-16)

t = (15) ± sqrt(225+8896)

       ----------------------

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t = (15) ± sqrt(9121)

       ----------------------

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t = 15+ sqrt(9121)                       t = 15- sqrt(9121)

     --------------------   or                    -------------------  

           -32                                               -32

        -3.453247707        or              2.515747707

Since time cannot be negative

 2.515747707

Round to the nearest hundredth

t = 2.52 seconds

6 0
3 years ago
Rectangle QRST is dilated by a scale factor of 1/2. What is the perimeter of rectangle Q'R'S'T'. (Please help)
natima [27]

Answer:

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Step-by-step explanation:

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In a school of 330 students 85 of them...
umka2103 [35]

Answer:C

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