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goldenfox [79]
3 years ago
8

So I have to find the area Please help

Mathematics
2 answers:
Vanyuwa [196]3 years ago
8 0
The answer is 140 because 10x14 = 140
mafiozo [28]3 years ago
4 0

Answer:

140

Step-by-step explanation:

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Two cars left the city for a suburb, 480 km away, at the same time. The speed of one of the cars was 20 km/hour greater than the
mario62 [17]

Time taken by car A = 6 hr and time taken by car B is 8 hours

<u>Explanation:</u>

<u />

Given:

Distance, d = 480 km

Let x be the time taken by B to reach the destination:

So,

Time taken by car A to reach the destination = x -2

We know:

Distance = speed X time

speed = \frac{distance}{time}

On substituting the value we get:

Speed of car A = \frac{480}{x - 2}

Speed of car B = \frac{480}{x}

Since car A travelled 20 km/hr faster than the car B, the equation becomes:

\frac{480}{x-2} = \frac{480}{x} + 20

Multiplying both sides by (x - 2) we get:

480 = \frac{480(x-2)}{x}+ 20(x-2)\\ \\480 = \frac{480x - 960}{x} + 20x - 40\\\\480 = \frac{480x - 960 + 20x^2 - 40x}{x} \\\\480x = 20x^2 + 440x - 960\\\\20x^2 - 40x - 960 = 0\\\\x^2 - 2x - 48 = 0\\\\x = 8

Therefore, time taken by car A = x - 2

                                                   = 8 - 2 hr

                                                   = 6 hr

Time taken by car B = 8 hr

4 0
3 years ago
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I GIVEEEEE BRIANLILSTTT
slamgirl [31]

Answer:

moves up 8 units and slides to the right 14 units

or

moves to the right 14 units and up 8 units

Step-by-step explanation:

i don't think i got the terms but that's what i see

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3 years ago
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