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sesenic [268]
3 years ago
13

4) Please help with this question!!! WiLL MARK BRAINLIEST + 10 POINTS!!!!!

Mathematics
1 answer:
Nookie1986 [14]3 years ago
3 0
The first one, y=-1/4x^2
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Theo is a cleaner.
marusya05 [52]

Answer:

  2:15 pm

Step-by-step explanation:

The time that Theo finishes is the sum of the start time and the duration of the cleaning. The duration is the sum of the cleaning times for each of the rooms and the break time.

__

<h3>sum of minutes</h3>

It is convenient to convert all of the times to minutes, then convert the total back to hours and minutes.

  kitchen +lounge +bedroom +bathroom +breaks

  = (60 +50) +(55) +(1/2×60) +(35) +(85)

  = 110 +55 +30 +35 +85

  = 315 . . . . minutes

<h3>minutes and hours</h3>

There are 60 minutes in an hour, so the sum is ...

  (315/60) hours = 5 15/60 hours = 5:15 . . . . written as hours : minutes

Then the time Theo finishes is ...

  9:00 +5:15 = 14:15 = 2:15 pm

Theo will finish cleaning at 2:15 pm.

_____

<em>Additional comment</em>

On a 24-hour clock, hours after noon are numbered 13, 14, 15, ... to 23 at 11 pm. The 12-hour representation of the pm hours can be found by subtracting 12 from the hour number.

3 0
2 years ago
If it takes six men six days to dig six holes, how long will it take one man to dig half a hole?
irakobra [83]
6x/6y=6z
X/?Y=1/2Z
36=6
1hole take 1 man x 6 days
1/2 hole needs 1 man with 3 days
3 0
3 years ago
The time is 4 pm now and your plane is delayed by 15 hours. what time will the plane be available?​
Semenov [28]

Answer:

7am

Step-by-step explanation:

6 0
4 years ago
Ayesha works as a real estate agent. Her annual gross salary is $28,000. From this, she must pay 20% income tax on anything earn
Lady bird [3.3K]

Answer:

Step-by-step explanation:

Annual gross salary = $28000

Income tax = 20% on anything above $15000

So she's taxable for $5000

Rent loan = $140 per month = $140 * 12= $1680 per annum

Tax deductible per annum = 20% of $5000

20 / 100 * $5000 = $1000

Total amount she takes home per annum =

Gross salary per annum - tax - loan =

($28000 - $1000 - $1680) = $25,320

Ayesha takes home $25,320 home annually.

8 0
4 years ago
What is the width of a rectangle with an area of 3600 square yards and a length of 80 yards
AlekseyPX
Divide the area by the length and you get the width.
So 3600/80 = 45.
The width of the rectangle is 45 yards.
Hope this helped !

3 0
3 years ago
Read 2 more answers
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