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coldgirl [10]
3 years ago
9

Plz help me asap i will mark you brainly

Mathematics
2 answers:
Andreas93 [3]3 years ago
8 0

Answer:

2 and a 1/2 hrs

Step-by-step explanation:

Maksim231197 [3]3 years ago
7 0

Answer:

2.5 hours

Step-by-step explanation:

Divide the travelled miles by the amount of hours to get the travelled miles for one hour. (17 miles in 1 hour) Then divide 42.5 by 17 to get the amount of time it takes to go 42.5 miles. (42.5 miles in 2.5 hours)

Hope this helps!

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USPshnik [31]
Answer:

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3 0
3 years ago
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How long will it take you to drive 135 miles at a speed of 45 miles per hour?​
alexandr402 [8]

Answer:

3 hours

Step-by-step explanation:

135/45=3

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Which is a correct definition of perpendicular lines?
djyliett [7]
It would be B: a set of points that extends infinitely in two directions
4 0
2 years ago
Find the length of the hypotenuse.<br> ¿Cuánto mide la hipotenusa?
ASHA 777 [7]
63 squared is 3969
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6 0
3 years ago
You are researching the average emails received per day. You want to know how many employees you should survey if you want to kn
IrinaK [193]

Answer:

The value is  n =29 \ employees

Step-by-step explanation:

Generally the number of employee to survey(sample size) is mathematically represented as

       n = [ \frac{z *  \sigma }{E} ]^2

Here E is the margin of error which is given as E = 47

So substituting 1.645 for z and   155 for  \sigma

     n = [ \frac{1.645 *  155 }{47} ]^2

=>    n =29 \ employees

     

         

5 0
3 years ago
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