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EastWind [94]
4 years ago
6

Las Vegas, Nevada and Phoenix, Arizona are 290 miles apart. If it takes a driver 4.5 hours to drive from Las Vegas to Phoenix, w

hat was her average rate, to the nearest tenth?
Mathematics
1 answer:
Furkat [3]4 years ago
5 0

Answer:

64.4 miles per hour

Step-by-step explanation:

divide the amount of miles by the amount of hours to get miles per hour

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4 years ago
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Pls help 25 points and brainliest.
puteri [66]

This is an equation that calculates potential energy and converts the value into its commercial unit.

<u>Step-by-step explanation:</u>

Step 1:

Given equation is 2 kg × 9.81 m/s² × 40 m. From the units, find the corresponding measurements. kg is the unit of mass (m), 9.81 m/s² is the acceleration due to gravity (g) and m is the unit of length or height (h).

This shows that this equation is to find potential energy. It is then converted into the commercial unit of energy (Joules).

⇒ Potential Energy = mgh = 2 kg × 9.81 m/s² × 40 m

                                            = 784.8 kg m²/s²

                                            = 784.8 N-m (Since unit of force, 1 N=kg m/s²)

                                            = 784.8 J (1 Newton-m = 1 Joule)

     

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3 years ago
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Find the surface area and the volume, help me pretty please
Dimas [21]

Answer:

The surface area is 13.08 and the volume is 3.14

Step-by-step explanation:

4 0
3 years ago
mr teo has some oranges and a few bags . He uses all the bags to pack the oranges . If he packs 5 oranges in each bag ,he will b
slamgirl [31]
You can make an equation for each situation where x is the number of bags and y is equal to the total number of oranges.

5x + 1 = y

4x + 3 = y

With substitution: 5x + 1 = 4x + 3

Solve for x.

5x - 2 = 4x

x - 2 = 0

x = 2

There is 2 bags, so plug that into either equation:

4x + 3 = y

y = 4*2 + 3

y = 11 oranges
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3 years ago
Find the x and y intercepts. Write your answer as x =<br> y =<br> 2x + 5y = 10
Ann [662]
The x-intercept is present where y = 0

2x + 5y - 10 = 0
2x - 10 = -5y
2x - 10 = -5(0)
2x = 10
x = 5

The y-intercept is present where x = 0

2x + 5y = 10
2x + 5y - 10 = 0
5y - 10 = -2(0)
5y = 10
y = 2
6 0
3 years ago
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