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3 years ago

Rummer traveled 5 kilometers in 25 minutes. What was her Speed

Mathematics

2 answers:

sp2606 [1]3 years ago

8 0

Answer:

1/5 kmph (or) 0.2 kmph

Step-by-step explanation:

Speed = Distance/Time

Speed = x

Distance = 5km

Time = 25mins

X = 5/25

= 1/5 or 0.2

arsen [322]3 years ago

6 0

Answer:

Step-by-step explanation:

1 kilometer per 5 minutes

You need to be more specific whith your answer if you need more than that.

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In an effort to estimate the mean of amount spent per customer for dinner at a major Lawrence restaurant, data were collected fo

larisa86 [58]

Answer:

The 99% confidence interval for the population mean is 22.96 to 26.64

Step-by-step explanation:

Consider the provided information,

A sample of 49 customers. Assume a population standard deviation of $5. If the sample mean is $24.80,

The confidence interval if 99%.

Thus, 1-α=0.99

α=0.01

Now we need to determine $z_{\frac{\alpha}{2}}=z_{0.005}$

Now by using z score table we find that $z_{\frac{\alpha}{2}}=2.58$

The boundaries of the confidence interval are:

$\mu-z_{\frac{\alpha}{2}}\times \frac{\sigma}{\sqrt{n} }\\24.80-2.58\times \frac{5}{\sqrt{49}}=22.96\\\mu+z_{\frac{\alpha}{2}}\times \frac{\sigma}{\sqrt{n} }\\24.80+2.58\times \frac{5}{\sqrt{49}}=26.64$

Hence, the 99% confidence interval for the population mean is 22.96 to 26.64

3 0

4 years ago

Answers for the 2 boxes please

Andreas93 [3]

Answer:

(5,14)

Step-by-step explanation:

4x+6=2x-4

2x=10

x=5

y=2x+4

y=2(5)+4

y=14

4 0

3 years ago

What is 3.8 as a fraction

slava [35]

Fraction 19/5
mixed fraction 3 4/5

8 0

4 years ago

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3√16-5= please help asap

IRISSAK [1]

Answer:

$\large\boxed{3\sqrt{16}-5=7}$

Step-by-step explanation:

$3\sqrt{16}-5=3(4)-5=12-5=7\\\\\sqrt{16}=4\ \text{because}\ 4^2=16$

3 0

3 years ago

Please help! The two way-table shows the number of students in a school who like mathematics and/or physics.

Nastasia [14]

I think the answer is B.) 15

If you look at the number of students who like mathematics but not physics, that's 5 students.
Then we see that 20 students like physics but not mathematics.
So there's 15 more students

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3 years ago

Read 2 more answers

Rummer traveled 5 kilometers in 25 minutes. What was her Speed​

Rummer traveled 5 kilometers in 25 minutes. What was her Speed