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xz_007 [3.2K]
3 years ago
10

grace rides her bike with a constant speed of 18 km/h how long will she take to travel a distance 72 kilometers

Mathematics
1 answer:
atroni [7]3 years ago
7 0
If she rides her bike 18 km per hour
then it will take 4 hours to travel 72 km (72÷18)
the answer is 4
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When 9 is subtracted from a number then divided by 2, the answer is 4. What is the number?
Fantom [35]
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5 0
3 years ago
Read 2 more answers
(Ross, 4.78) A jar contains 4 white and 4 black marbles. We randomly choose 4 marbles. If 2 of them are white and 2 are black, w
KATRIN_1 [288]

Answer:

Step-by-step explanation:

Given

Jar contains 4 white and 4 black marbles

We randomly select 4 marbles out of which 2 are white and 2 are black

Probability that 2 white and 2 black marbles are selected is

P=\frac{^4C_2\times ^4C_2}{^8C_4}

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The process is continue for n trails until we choose the correct order

i.e. we have to fail in n-1 trails

For exact n selection Probability is given by

Req.\ Probability=Probability\ of\ failure\ in\ (n-1)\ trials\times Probability\ of\ getting\ exact\ order

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8 0
3 years ago
Which of these items is a tax deduction?
Flura [38]
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7 0
3 years ago
Find each angle measure
Burka [1]

Step-by-step explanation:

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3 0
3 years ago
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Answer:

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Step-by-step explanation:

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1. Can be Paired or Not paired

Reason -

We might look at testing the difference of means using a two sample t-test. However, we may also try running a paired t-test.

But its used in cases where the observations are usually from the same populations at different times or through different sources etc.

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Reason -

Each record is a price of the same item from different stores.

3. Not paired

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3 years ago
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