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AnnyKZ [126]
2 years ago
8

There are 300 runners at the meet, some boys and some girls

Mathematics
1 answer:
Ira Lisetskai [31]2 years ago
6 0

Answer:

you need to tell me the question first!

Step-by-step explanation:

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gavmur [86]

Answer:

XYZ is similar to ABC

Step-by-step explanation:

take a ruler and measure the sides

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2 years ago
Greg borrowed $100 from his parents. After he did some chores, they reduced the amount of his debt by $25.
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2 years ago
A game decreased in price by 2/3. After the reduction it was priced at £13. What was the original price of the game?​
Archy [21]

Answer:

x = 39

Step-by-step explanation:

Based on the given conditions, write: x=\frac{13}{1-\frac{2}{3}}

Find common denominator and write numerators above common denominator: x=\frac{\frac{13}{3-2} }{3}

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5 0
2 years ago
Read 2 more answers
(a) The position of a particle at time t is s(t) = t^3 + t. Compute the average velocity over the time interval [7, 12].(b) Esti
ryzh [129]

Answer:

<h2>a) Average velocity = 278 units</h2><h2>b) Instantaneous velocity at t = 7 seconds is 148 units</h2>

Step-by-step explanation:

a) Average velocity is the ratio of displacement to time.

   We have

              s(t) = t³ + t

    t is in between 7 and 12

             s(7) =  7³ + 7 = 350

              s(12) = 12³ + 12 = 1740

    Displacement = 1740 - 350 = 1390

   Time = 12 - 7 = 5

  Displacement =  Average velocity x time

  1390 = Average velocity x 5

  Average velocity = 278 units

b) s(t) = t³ + t

   Differentiating

         v(t) = 3t² + 1

  At t = 7

          v(t) = 3 x 7² + 1 = 148 units

  Instantaneous velocity at t = 7 seconds is 148 units

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3 years ago
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Airida [17]

Answer:

it is 140ft perimeter is adding all four sides together

3 0
2 years ago
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