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kap26 [50]
2 years ago
12

Samin can run 5 kilometers in 30 minutes. Assuming she keeps a constant pace, how many kilometers can she run in 45 minutes? URG

ENT ANSWERS PLEASE!
Mathematics
2 answers:
neonofarm [45]2 years ago
5 0

Answer:

7.5

Step-by-step explanation:

bulgar [2K]2 years ago
3 0

Answer:

7.5kilometer

Step-by-step explanation:

for 30mins semin runs 5kilometer

then for 1min: (1min×5kilometer)÷30mins,

therefore, for 45mins: (45mins×5kilometer)÷30mins=7.5kilometer

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The average time customers spent on the American Greetings Web site has been 11.85 minutes (Top Web Properties, USA Today, April
Helen [10]

Answer: ± 1.96

Step-by-step explanation:

Given the following :

Mean (m) time spent = 11.85

Standard deviation = 4 minutes

Since the population of site visits is Normally distributed, Hence, the test statistic will follow a normal distribution :

The test the hypothesis that mean time has changed at 0.05 confidence interval

Normal distributions have a mean value of 0 and standard deviation of 1

Using a two tailed test At 0.05 confidence interval ;

Using the critical value calculator, which in general under normal distributions :

0.05% confidence interval for a two tailed test is

± 1.96

5 0
2 years ago
In circle Y, what is m∠SZT? 86° 94° 108° 128°
liraira [26]
I'm going to assume that is your shape. 
If that is your shape, this is simple:

First, you need to solve for the angle TZU. The formula for it is:
mTZU= 0.5(arcTU+arcSR)
mTZu= 0.5(72°+100°) = 86°

Vertical angles, as you should know, are congruent. Always. mTZU is a vertical angle to mSZR. This means mSZR is also 86°

Now, the sum of all angles should be 360°. Now you need to know the remaining angles, you can do this by:
360° - 86° - 86° = 188°

Now, last step. Since mSZR is also equal to RZU because they are vertical angles, this means you need to divide 188° by 2. 
188°/2 = 94°

Your answer: m∠SZT = 94°

~Hope this helps!

6 0
1 year ago
Read 2 more answers
The height of a rectangle is increasing at a rate of 111111 centimeters per hour and the width of the rectangle is decreasing at
Galina-37 [17]

Answer:

Area of a rectangle = A = 295704 centimeters ^{2}

Step-by-step explanation:

Given Data:

At a certain instant,

height of a rectangle = h = 333 centimeters

width of a rectangle = w = 888 centimeters

To Find Out:

Area of a rectangle = A = ?

Formula:

Area of a rectangle = A = h × w

Solution:

Area of a rectangle = A = h × w

Area of a rectangle = A = 333 × 888

Area of a rectangle = A = 295704 centimeters ^{2}

8 0
2 years ago
Arnold had three pieces of different colored strings that are all the same length. Arnold cut the blue string into 2 equal size
irina [24]
6
he cut the blue string in half.
he cut the red string in thirds
he cut the green string in sixths.

2(half) goes into 6
3(thirds) go into 6
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4 0
1 year ago
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(4 x 5) – 10 – 2(1 – 2) + 5 =
Olegator [25]

The answer to this problem would be 17.

3 0
1 year ago
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