An ant is walking at a speed of 42 centimeters in 5 minutes. what rate did the ant walk

1 answer:

7 0

divide 42 cm. by 5 minutes, which leaves you with 8.4 cm/minute. hope this helps, please mark brainliest and have a great day

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A cyclist rides at a constant speed of 15 miles per hour. At this speed, about how long would it take the cyclist to ride from F

frozen [14]

We need to find the time taken to travel from Frederick, MD to Baltimore, MD at a speed of 15 miles per hour.

The time taken to travel the distance is 3 hours and 20 minutes.

The shortest route from Frederick to Baltimore is 50.2 miles via the I-70 E.

So we can assume this route will be taken.

Speed of the cyclist = 15 mph

Time is given by distance divided by speed.

So,

$t=\dfrac{50.2}{15}\\\Rightarrow t=3.34\ \text{hours}$

Converting to hours and minutes

$0.34\times 60=20.4\approx 20$

The time taken by the cyclist would be about 3 hours and 20 minutes.

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4 0

3 years ago

Adding negative and positive numbers.

vichka [17]

When you add 2 negatives you get a negative for example -5+-15= -20 when you add a positive to a negative it increases the number for example -20+7= -13. Hope this helps

7 0

3 years ago

Read 2 more answers

Samira ran around a park loop that was one-third mile long. she ran around the loop nine times. samira says she ran 9/3 miles. h

Alexeev081 [22]

1/3 mile x 9 times = 3

They both are 9/3 simplifies to 3

4 0

3 years ago

how would you convert the repeating, nonterminating decimal to a fraction? explain the process as u solve the problem 0.1515...

deff fn [24]

.1515/1 1.515/10 15.15/100 151.5/1000 1515/10000

multiply the numerator and the denominator by 10

your answer is 1515/10000

simplified is 303/2000

4 0

3 years ago

Suppose that 3\%3%3, percent of over 200{,}000200,000200, comma, 000 books borrowed from a library in a year are downloaded. The

sleet_krkn [62]

Answer:

The mean of the sampling distribution of the proportion of downloaded books is 0.03 and the standard deviation is 0.0197.

Step-by-step explanation:

Central Limit Theorem

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean $\mu = p$ and standard deviation $s = \sqrt{\frac{p(1-p)}{n}}$