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VMariaS [17]
3 years ago
7

What is the constant proportionality and use the concept of personality to find the number of people for 10 cups of rice

Mathematics
1 answer:
nataly862011 [7]3 years ago
5 0
The Constant of proportionality is 3 and for 10 cups of rice it would be 30
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B)He forgot to record and subtract the fee for writing a check

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Solve each word problem using a system of equations. Use substitution or elimination.
nasty-shy [4]

Answer:

Step-by-step explanation:

x + 3y = 24.....multiply by -1

5x + 3y = 36

------------------

-x - 3y = -24 (result of multiplying by -1)

5x + 3y = 36

------------------add

4x = 12

x = 12/4

x = 3 <=======

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4 0
3 years ago
A young Witch flew her broom 48 miles form her home to a witch festival. Flying with the wind, the trip took 3 hours. Her flight
vekshin1

Using the relation between velocity, distance and time, it is found that:

  • The speed of the wind is of 2 mph.
  • The speed of the broom is of 14 mph.

<h3>What is the relation between velocity, distance and time?</h3>


Velocity is <u>distance divided by time</u>, hence:

v = \frac{d}{t}

Flying with the wind, in which v = v_b + v_w the 48-mile trip took 3 hours, hence:

v = \frac{d}{t}

v_b + v_w = \frac{48}{3}

v_b + v_w = 16

Her flight home against the wind took 4 fours, hence:

v = \frac{d}{t}

v_b - v_w = \frac{48}{4}

v_b - v_w = 12

Adding the two equations:

2v_b = 28

v_b = 14

v_b + v_w = 16 \rightarrow v_w = 2

Hence:

  • The speed of the wind is of 2 mph.
  • The speed of the broom is of 14 mph.

More can be learned about the relation between velocity, distance and time at brainly.com/question/24316569

4 0
3 years ago
Write the expression two-cubed times seven as a numerical expression.
aleksley [76]

Answer:

See below

Step-by-step explanation:

2^3    is   two cubed     ...now multiply times 7

<u>7 * 2^3    </u>

4 0
2 years ago
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