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xxTIMURxx [149]
3 years ago
6

A swimming pool is open for 7 1/2 hours during a day the pool keeps one lifeguard on duty at a time and each lifeguards shift is

one and a half hours long how many shifts are there per day
Mathematics
2 answers:
Archy [21]3 years ago
8 0
The answer is 5 shifts
Klio2033 [76]3 years ago
3 0
The answer is 5 people because 7hrs and 30mins is like 450 mins together so then 1hr and 30min of their shift is 90 mins so divide 450 by 90 is 5 people work each day
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Solve the equation. |x + 5| = 9 {–4, 14} {–14, 4} {4, 14} {–14, –4}
inna [77]

Answer:

{-14, 4}

Step-by-step explanation:

the absolute value function only makes sure that the result always has a positive sign.

so, (x + 5) must be either +9 or -9 to make the original equation true. the absolute value would turn both into +9.

so,

x + 5 = 9

x = 4

and

x + 5 = -9

x = -14

that gives us the correct set of solutions as indicated above.

6 0
3 years ago
7)
natulia [17]

Answer:

600 feet

Step-by-step explanation:

3 0
3 years ago
Can someone please help with this question
maksim [4K]

Answer:

X = 7.2

Step-by-step explanation:

Hello

For the triangle of right side, using Pytagoras:

(2.5)^2 + b^2 = 6^2

6.25 + b^2 = 36

b^2 = 36 - 6.25

b^2 = 29.75

b = 5.45

Now we can to find X using again Pytagoras:

3^2 + (5.45)^2 = x^2

9 + 29.75 = x^2

38.75 = x^2

X = 7.2

Best regards

5 0
3 years ago
What is the greatest common factor of 18 and 3?
-Dominant- [34]
3 is your greatest 

3/3 = 1

18/3 = 6


hope this helps
8 0
3 years ago
Tom has 12 reports to file. If each report takes an average of 45 minutes to file, how long will it take him to file 75% of them
Jobisdone [24]

Alright, lets get started.

One report takes to file an average of = 45 minutes

Means 12 reports takes to file time = 12 * 45 = 540 minutes

12 reports filing total time = 540 minutes

We are asked to find time to file 75 % of them.

Which means 75 % of 540

= 540 * 75/100

= 540 * 0.75

= 405 minutes

We could convert it into hrs dividing with 60.

405 / 60 = 6.75 hrs

Means it will take 6.75 hrs to file 75% of them: Answer

Hope it will help :)

8 0
3 years ago
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