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3 years ago

Sam walks from home to his school which is 0.75 miles away in 12 minutes. How fast was he walking?

Mathematics

2 answers:

likoan [24]3 years ago

5 0

Answer:3.75 mph

Step-by-step explanation:

Lelu [443]3 years ago

4 0

0.75x12=9

So 9 miles is the answer

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Micheal walks 3.5 km every day . How far does he walk in 9 days . Write in meters

Gnom [1K]

31500 meters.

Step-by-step explanation:

3.5 km times 9 = 31.5 km

25.5 km = 31500 meters

Let me know if you have any issues or need help!

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3 years ago

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Use the relative frequency approach to estimate the probability of the event. In a certain class of students, there are 8 boys f

In-s [12.5K]

Answer:

$P\text{Student will be from Kenilworth}\approx 0.256$

Step-by-step explanation:

We have been given that that there are 8 boys from Wilmette, 5 girls from Kenilworth, 9 girls from Wilmette, 5 boys from Glencoe, 5 boys from Kenilworth and 7 girls from Glenoce.

The total number of students from Kenilworth is 5 boys plus 5 girls that is 10 students.

The total number of students in the class would be $8+5+9+5+5+7=39$

$\text{Probability}=\frac{\text{Number of favorable outcomes}}{\text{Total number of possible outcomes}}$

$P\text{Student will be from Kenilworth}=\frac{\text{Number of student from Kenilworth}}{\text{Total number of students}}$

$P\text{Student will be from Kenilworth}=\frac{10}{39}$

$P\text{Student will be from Kenilworth}=0.2564102564$

$P\text{Student will be from Kenilworth}\approx 0.256$

Therefore, the probability, that the student will be from Kenilworth, is approximately 0.256.

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3 years ago

Which equation is represented by the graph below

s2008m [1.1K]

Where is the equation?

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3 years ago

Suppose a variable has a normal distribution with mean 67 and standard deviation 4. What percentage of the distribution is less

harkovskaia [24]

Answer:

The percentage of the distribution is less than 75 is 97.72%.

Step-by-step explanation:

Given,

Mean of the distribution,

$\mu=67$

Standard deviation,

$\sigma = 4$

Thus, the z-score of the score 75,

$z=\frac{x-\mu}{\sigma}$

$=\frac{75-67}{4}$

$=\frac{8}{4}$

$=2$

With the help of z-score table,

$P(x$

Hence, the percentage of the distribution is less than 75 is 97.72%.

5 0

3 years ago

The map shows the location of the airport and a warehouse in a city. Though not displayed on the map, there is also a factory 10

LekaFEV [45]

Step 1
find the coordinates of the factory
the factory is 104 miles due north of the warehouse

the coordinates of the warehouse are (39,-52)
coordinates of the factory------> (39,-52+104)------> (39,52)

step 2

find the distance warehouse to airport
let
A coordinates of warehouse-------> A( 39,-52)
B coordinates of airport---------> B(-39,52)
C coordinates of factory-------> C(39,52)

distance AB=√[(52+52)²+(-39-39)²]------> distance AB=130 miles

step 3
find the distance airport to factory
B(-39,52)
C(39,52)
distance BC=√[(52-52)²+(39+39)²]-----> distance BC=39 miles

the total number of miles=distance AB+distance BC---> 130+39
the total number of miles=169 miles

the answer is
169 miles

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3 years ago

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