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Gnoma [55]
3 years ago
5

Help and show steps for 2 and 4 :)

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
5 0
 2 solve the equation first and than  <span> </span>
15 => m + 12 
 - 12        - 12 
3 => m 
 m => 3  than put a circel with color inside black turn it to the right from 3  hope its help you 
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Read 2 more answers
wind resistance varies jointly as an objects surface area and velocity. if an object traveling at 55 miles per hour with a surfa
nikdorinn [45]

Answer:

25 miles per hour

Step-by-step explanation:

Given

W = Wind\ resistance

A = Surface\ Area

V = Velocity

The joint variation can be represented as:

W\ \alpha\ A*V

Where:

V = 55; A = 20; W = 220

Required

Find V,  when: A = 55; W = 275

We have:

W\ \alpha\ A*V

Express as an equation

W= k *A*V

Where k is the constant of variation

Make k the subject

k = \frac{W}{A*V}

When: V = 55; A = 20; W = 220

We have:

k = \frac{220}{20 *55 }

k = \frac{220}{1100}

k = 0.2

When: A = 55; W = 275

We have:

k = \frac{W}{A*V}

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V= \frac{275}{55 * 0.2}

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V= 25

3 0
3 years ago
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