MATHEMATICS HIGH SCHOOL

Paula's time swimming in the Ironman Triathlon was 1 hour 25 minutes. Her time biking was 5 hours longer than her swimming time. She ran for 4 hours 50 minutes. How long did it take her to complete all three parts of the race? Use the model to help you organize your thinking.

Answers

Answer 1
Answer:

Answer: 12 hrs 40 mins

Step-by-step explanation:

The swimming time was 1 hour 25 minutes.

Her biking time was 5 hours longer than the swimming time so it was:

= 1 hr 25 mins + 5 hours

= 6 hours 25 mins

Her running time was 4 hrs 50 mins.

Add them all up to find the amount of time ran. First add up the minutes:

= 25 + 25 +50

= 1 hr 40 minutes

Hours = 1 + 6 + 4

= 11 hours

Total:

= 11 + 1 hr 40

= 12 hrs 40 mins

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Answers

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Answers

2×-2=-4
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Answer:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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What is the simplified form of 8b^3c^2 + 4b^3c^2 ?

Answers

it would be 12b³c².

hope this helps you
it would be 12b³c² That is the answer hope that helps

Which expression is a difference of squares with a factor of 5x − 8?25x2 − 16
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25x2 + 64

Answers

Answer:

option  (3) is correct.

25x^2-64

Step-by-step explanation:

 Given :  factor 5x − 8

We have to choose an expression out of given option that is a difference of squares with a factor of 5x − 8

Using  algebraic identity a^2-b^2=(a+b)(a-b)

a difference of squares is written mathematically as a^2-b^2

Since one factor is 5x − 8

using identity stated above other factor has be 5x+8

Thus (5x+8)(5x-8)

On simplify , we get

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Thus, option  (3) is correct.
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(5x-8)(5x+8) = 25x2 - 64

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Which binomial expression are factors of 2x^3 + 5x^2 - x - 6

Answers

Answer:

x - 1 and x + 2

Step-by-step explanation:

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