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Kaylis [27]
3 years ago
14

Solve math problem for v. V-6=8

Mathematics
2 answers:
Zarrin [17]3 years ago
8 0
V is always equal to 14
xeze [42]3 years ago
3 0
If I did it right, V would be 14. 14-6=8
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Elena and Jada are 12 miles apart on a path when they start moving towards each other. Elena answered a constant speed of 5 mile
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Step-by-step explanation:

3 0
3 years ago
3. At noon Lan is in his blue mini-van 300 km north of Makenna in her Bugatti. Lan heads south
LiRa [457]

Answer:

The rate at which the distance between them is changing at 2:00 p.m. is approximately 1.92 km/h

Step-by-step explanation:

At noon the location of Lan = 300 km north of Makenna

Lan's direction = South

Lan's speed = 60 km/h

Makenna's direction and speed = West at 75 km/h

The distance  Lan has traveled at 2:00 PM = 2 h × 60 km/h = 120 km

The distance north between Lan and Makenna at 2:00 p.m = 300 km - 120 km = 180 km

The distance West Makenna has traveled at 2:00 p.m. = 2 h × 75 km/h = 150 km

Let 's' represent the distance between them, let 'y' represent the Lan's position north of Makenna at 2:00 p.m., and let 'x' represent Makenna's position west from Lan at 2:00 p.m.

By Pythagoras' theorem, we have;

s² = x² + y²

The distance between them at 2:00 p.m. s = √(180² + 150²) = 30·√61

ds²/dt = dx²/dt + dy²/dt

2·s·ds/dt = 2·x·dx/dt + 2·y·dy/dt

2×30·√61 × ds/dt = 2×150×75 + 2×180×(-60) = 900

ds/dt = 900/(2×30·√61) ≈ 1.92

The rate at which the distance between them is changing at 2:00 p.m. ds/dt ≈ 1.92 km/h

5 0
3 years ago
What is two-thirds a number plus 4 is 7
andriy [413]
2/3x + 4 = 7
         -4    -4
4 cancels out.
2/3x = 3
x 3      x3
6/3 = 2x = 9
         /2     /2
2 cancels out.
x = 9/2 = 4.5

3 0
3 years ago
Read 2 more answers
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