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svlad2 [7]
3 years ago
8

A person came to work at 8:30 am, went out at 11:45 am, had lunch, came in at 12:30 pm, and left at 5:15 pm. How many hours did

this person work?
Mathematics
1 answer:
gayaneshka [121]3 years ago
7 0

Answer:

8 hours

Step-by-step explanation:

A person came to work by 8:30 am

He went out to lunch 11:45 am and came back 12:30 pm

He closed 5:15 pm

Therefore the total hours worked that day can be calculated as follows

Time worked from 8:30 am to 11:45 am is 3 hours 15 mins

Time worked for 12:30 pm to 5:15 pm is 4 hours 45 mins

3 hours 15 mins + 4 hours 45 mins

= 8 hours

Hence the total hours worked that day is 8 hours

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A video sharing website starts with 20,000 members. Each year it loses 25% of the members, but adds 10,000 new members after the
MrMuchimi
20,000 x 25 = 500,000
500,000 divided by 100 = 5,000 members are lost.
Members left = 15,000
Members added = 10,000
Members every year  = Members left + Members added
                                   =          15,000 +  10,000
                                   =          25,000

6 0
3 years ago
In ∆ABC with m∠C = 90° the sides satisfy the ratio BC:AC:AB = 4:3:5. If the side with middle length is 12 cm, find: 1) The perim
olga55 [171]
*The side with the middle length is 12cm, therefore BC must be 12 cm

------------------------------------------------------------<span>
Ratio 
------------------------</span>---------------------------------<span>--
BC:AC:AB
  4 : 3 : 5

</span>-----------------------------------------------------------
<span>Find 1 share
</span>-----------------------------------------------------------<span>
Given that BC = 12 cm
4 shares = 12 cm
1 share = 12 ÷ 4 = 3cm

</span>-----------------------------------------------------------
Find AC (4 shares)
-----------------------------------------------------------<span>
3 shares = 3 x 3 = 9 cm
BC = 9cm

</span>-----------------------------------------------------------
<span>Find AB (5 shares)
</span>-----------------------------------------------------------<span>
5 shares = 5 x 3 = 15cm
AB = 15cm

</span>------------------------------------------------------------
Length
-----------------------------------------------------------
   BC   :  AC   :  AB
12cm  :  9cm : 15cm<span>

---------------------------------</span>---------------------------------<span>
Perimeter
</span>------------------------------------------------------------------
<span>12 + 9 + 15 = 36cm

</span>------------------------------------------------------------------
<span>Answer: The perimeter is 36cm
</span>------------------------------------------------------------------<span>

</span>------------------------------------------------------------------
<span>Area
</span>------------------------------------------------------------------
1/2 x 9 x 12 = 54cm²<span>

</span>------------------------------------------------------------------
Answer: Area = 54cm²
------------------------------------------------------------------<span>

Given that the biggest ratio is AB
</span>⇒AB is the hypotenuse
AB = 15 cm

------------------------------------------------------------------
Answer: Hypotenuse = AB = 15cm
------------------------------------------------------------------
8 0
3 years ago
Read 2 more answers
Need help! attachment below. will give brainlist
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Answer:

<em><u>In the graph locate the point (3,0) and draw a line parrallel to Y-axis passing through (3,0) .</u></em>

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Step-by-step explanation:

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7 0
3 years ago
A 5 year lease for a office space states that the annual rent is 62,000 for the first year and will increase by 7% each addition
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2 years ago
mark is an auto dealer he sold a car and made a loss of 10% if his loss was $150000 A calculate how much he sold the car for B w
storchak [24]

Answer:

A. he sold the the car for 1350000

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x-----> 90%

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B. 10%( price) +90%(price)

1350000+150000=1500000

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