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vladimir1956 [14]
3 years ago
13

Pauline travels between two cities. first she drives for 45 minutes at an average speed of 85 km/hr then for 16 minutes at an av

erage speed of 118 km/hr, then she spends 19 minutes eating lunch and buying gas, and then she drives for 13 minutes at an average speed of 43 km/hr. find pauline's average speed for this trip. express it in kilometers per hour and round your answer to the nearest km/hr.
Mathematics
1 answer:
marshall27 [118]3 years ago
8 0

85 x 45/60 = 63.75 km

118 x 16/60 = 31.47 km

43 x 13/60 = 9.32 km

63.75 + 31.47 + 9.32 = 104.54 km


45 + 16 + 19 + 13 = 93 min = 1.55 hours


104.54 ÷ 1.55 = 67.45 km/h

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sergij07 [2.7K]

Answer:

The answer to your question is: letter C

Step-by-step explanation:

Data

Find the Parabola's equation and express the equation as an inequality.

Vertex = (0, -5)

Equation

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3 years ago
63. 26 Which expressions are equal to 23 ? 123 126 26 . 33 23 33​
liubo4ka [24]

Hey there!

(6^3 * 2^6) / 2^3

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= 13,824 / 8

= 1,728


Looking for something that gives you the result of: 1,728


Option A.
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= 144 * 12

= 1,728

Option A. is. possible answer


Option B.
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= 36 * 6

= 216

216 ≠ 1,728

Option B. is incorrect


Option C.
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= 12 * 12 * 12 * 12 * 12 * 12

= 144 * 144 * 144

= 20,736 * 144

= 2,985,984

2,985,984 ≠ 1,728

Option C. is also incorrect


Option D.
2^6 * 2^3

= 2 * 2 * 2 * 2 * 2 * 2 * 2 * 2 * 2

= 4 * 4 * 4 * 4 * 2

= 16 * 16 * 2

= 256 * 2

= 512
512 ≠ 1,728

Option D. is also incorrect

Option E.
2^3 * 3^3

= 2 * 2 * 2 * 3 * 3 * 3

= 4 * 2 * 9 * 3

= 8 * 27

= 216

216 ≠ 1,728

Option E. is also incorrect.


Therefore, the answer should be:

Option A. 12^3



Good luck on your assignment & enjoy your day!



~Amphitrite1040:)

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2 years ago
X^2 + y^2 = 8<br> X-y=0<br> Select all of the following that are solutions to the system shown
ludmilkaskok [199]

X^2 + y^2 = 8
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solutions:

x= - 2 and x = + 2

y= - 2 and y = + 2

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3 years ago
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