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3 years ago

4. Lin runs 4 laps around a track in 9 minutes at a constant speed.

Mathematics

1 answer:

Alexxx [7]3 years ago

3 0

Answer:

Number of minutes per lap = 2.25 minute

Number of lap per minute = 0.444 lap (Approx)

Time taken for 15 lap = 33.75 minutes

Step-by-step explanation:

Given:

Number of laps = 4

Time taken = 9 min

Computation:

Number of minutes per lap = 9 / 4

Number of minutes per lap = 2.25 minute

Number of lap per minute = 4 / 9

Number of lap per minute = 0.444 lap (Approx)

Time taken for 15 lap = 15 x 2.25

Time taken for 15 lap = 33.75 minutes

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Zolol [24]

Answer:

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Step-by-step explanation:

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2 years ago

Complete the square for 5x^2 – 30x = 5.

Yuri [45]

First, subtract 5 from both sides, leaving you with 5 $x^{2}$ - 30x - 5 = 0
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3 years ago

Ms. Keller's recipe uses 5 cups of milk to make 12 smoothies, How many cups of milk will be used to make 18 smoothies?

vladimir1956 [14]

Answer:

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Step-by-step explanation:

Given:

12 smoothies need number of milk cup = 5

Find:

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Computation:

Number of milk cup need for 18 smoothies = 18 [5/12]

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2 years ago

2logx=3-2log(x+3) solve for x

AVprozaik [17]

Answer:

$\large\boxed{x=\dfrac{-3+\sqrt{40+10\sqrt{10}}}{2}}$

Step-by-step explanation:

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6 0

3 years ago

Asap!! someone please help! i don't understand how graphing functions work

KATRIN_1 [288]

The first graph is B. x^2 + 6 < 3
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3 years ago