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Lubov Fominskaja [6]
3 years ago
14

A car travels at an average speed of 48 miles per hour. How long it take to travel 156 miles

Mathematics
2 answers:
dangina [55]3 years ago
6 0

Answer: 195 min or 3 hr and 15 min

Step-by-step explanation:

We can set up a proportion to solve this problem.

\frac{48mi}{60 min} =\frac{156 mi}{x}

48x=156*60

48x=9360

x=195 min

We can also write this in terms of hours and minutes.

\frac{60 min}{1 hr} =\frac{195 min}{x}

60x=195

x=3.25

3 hr and 15 min

Vikentia [17]3 years ago
3 0

Answer:

3.25 h = 3 h 15 m

Step-by-step explanation:

156 mi * 1h/48 mi = 3.25 h = 3 h 15 m

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In triangle ABC, AB = 11 cm, BC = 9 cm and CA = 10 cm.<br> Find the area of triangle ABC.
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Answer:

Area = 42.43 square cm

Step-by-step explanation:

Using Heron's Formula :

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<em><u></u></em>

s = \frac{11 + 9 + 10 }{2} = \frac{30}{2} = 15

Area = \sqrt{15 \times ( 15 - 11 ) \times { (15 - 9 ) \times ( 15 -10)}\\\\

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