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den301095 [7]
3 years ago
13

If a skateboarder performs 20 tricks during practice and 45% of the tricks are heelflips, how many heelflips does the skateboard

er perform?
Mathematics
1 answer:
Airida [17]3 years ago
4 0
The skateboarder would have performed 9 heel flips. .45 is 45% turned into a decimal. if you multiply .45 by the number of tricks he performed, you get 9!
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Solve <br><br> 2k(-3k + 4) + 6(k2 + 10) =k(4k + 8) - 2k(2k + 5). <br><br> Check your solution.
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Answer:

k=\frac{-52}{18} \approx -2.89 (2dp)

Step-by-step explanation:

2k(-3k + 4) + 6(k^2 + 10) =k(4k + 8) - 2k(2k + 5)

Expand brackets:

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simplify:

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Collect terms:

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3 years ago
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MakcuM [25]

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irina [24]

Answer:

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Step-by-step explanation:

<u>Lets verify the ratio of corresponding sides:</u>

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