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torisob [31]
3 years ago
12

Sam is going on a spelunking trip and must cover 640 miles in 8 days. If Sam is spelunking 10 hours each day, how many miles mus

t he spelunk each hour?
Mathematics
1 answer:
Darina [25.2K]3 years ago
6 0

Answer: 80

Step-by-step explanation: :D happy to help. Plz friend me!!!

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Select the correct answer.
vovangra [49]

Answer:

B

Step-by-step explanation:

think of the ratios as equivalent fractions. 2 over 14 is NOT equal to 3 over 42.

6 0
3 years ago
Write the fraction 2/10 in simplest form
Over [174]
2/10 in simplest form is 0.2
4 0
3 years ago
Read 2 more answers
Estou viajando de São Paulo a Porto Alegre, cujo percurso total tem 1600 km, aproximadamente. Se já percorri 80% do percurso, qu
maksim [4K]

Answer:Resposta:100% = 140075% = x100x = 75 * 1400100x = 105000x = 105000/100x = 1050 Km ... will you go out with me

Step-by-step explanation:

4 0
3 years ago
Which one is correct?
galina1969 [7]

Answer:

720cm^2

Step-by-step explanation:

i dont think this is right answer

7 0
3 years ago
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Over a certain region of space, the electric potential is V = 4x − 7x2y + 7yz2. Find the expressions for the x, y, z components
Tju [1.3M]

Answer:

Ex = - 4 + 14xy

Ey = 7x² - 7z²

Ez = -14yz

Step-by-step explanation:

The relationship between Electric field Er(x, y, z) and Electric potential, V, is a differential relationship:

Er(x, y, z) = -dV/dr(x, y, z)

Where r(x, y, z) = distance in x, y and z components.

The x component of the electric field is:

Ex = -dV/dx

Given that:

V = 4x - 7x²y + 7yz²

Ex = -dV/dx

Ex = -(4 - 14xy)

Ex = -4 + 14xy

The y component of the electric field is:

Ey = -dV/dy

Ey = -(-7x² + 7yz²)

Ey = 7x² - 7z²

The z component of the electric field is:

Ez = -dV/dz

Ez = -(14yz)

Ez = -14yz

8 0
3 years ago
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