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2 years ago

If every 5 minutes I get 3 coins then how long will it take for me to get 75 coins?

Mathematics

1 answer:

yan [13]2 years ago

8 0

It would take 25 minutes to get 75 coins

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Find the sum of this arithmetic series.<br> | 26 + 24.5 + 23 + 21.5 + ... - 17.5

emmainna [20.7K]

Answer:

127.5

Step-by-step explanation:

The given series is 26 + 24.5 + 23 + 21.5 + ... - 17.5

The first term of this series is a=26

The common difference is d=24.5-26=-1.5

The last term of the series is -17.5

The nth term is given by:

$u_n=a+d(n-1)$

$26+-1.5(n-1)=-17.5$

$-1.5n=-17.5-26-1.5$

$-1.5n=-45$

n=30

The sum of the series:

$S_{n}=\frac{n}{2}(a+l)$

$S_{30}=\frac{30}{2}(26+-17.5)$

$S_{30}=127.5$

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3 years ago

How much money did Felicia invest?

Degger [83]

P=90 / 0.02
p = 4500

answer
$4500

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3 years ago

Use a proportion to solve:

Mariulka [41]

Answer:

420 miles

Step-by-step explanation:

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3 years ago

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Hannah buys ice cream and onions at the store

Snezhnost [94]

Answer:

x=5.12

Step-by-step explanation:

35.16= 4.44+6x

30.72=6x

5.12=x

x=5.12

Hope this helps :)

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3 years ago

Point w is located ar -5,-3 select all of the following that are 5 units from w

BaLLatris [955]

A and B are both 5 units from it

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3 years ago