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Yanka [14]
3 years ago
11

Please help me out in optional maths​

Mathematics
1 answer:
antoniya [11.8K]3 years ago
3 0
WHAT THE OTHER PERSON SAID
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Tushar bought a mobile phone for rupees 6000, at what price should sell so as to gain 10%
Maru [420]

Answer: $6600

Step-by-step explanation: 600 is 10 percent of 6000. To find out the percent of 6000 you do 0.1 x 6000 then you just add it to the original price which was 6000. Therefore 6600 is your answer

3 0
3 years ago
PLEASE HELP!!!! Geometry is so hard and this is due tonight :(
Bezzdna [24]
Number 7 Should Be A. 2.5
4 0
3 years ago
HELP PLEASE FIND X AND SHOW YOUR WORK
PtichkaEL [24]

Answer:

34

Step-by-step explanation:

Straight lines are 180 degrees, so the angle inside of the triangle next to the 127, is 53 degrees. (180-127= 53)

So to find "x", we need to figure out what the full number is.

59+53 = 112.

180-112= 68.

Now that we have the degree of the full angle, we can make an equation to find x.

x*2 = 68

(Divide 2 from both sides to isolate the variable)

x = 34  

I hope this helped!

7 0
3 years ago
A person invests 6500 dollars in a bank. The bank pays 7% interest compounded quarterly. To the nearest tenth of a year, how lon
Ira Lisetskai [31]

Answer:

16.2 years

Step-by-step explanation:

8 0
3 years ago
How many liters of 80% alcohol solution and 30% alcohol solution must be mixed to obtain 15 liters of 50% alcohol solution?
Margaret [11]

set up a table (multiply across and add down - <em>don't add the middle column). Use the equation created by the "Total" row to solve for the variable.</em>

               Quantity  (times)      %        equals        Total

Sol'n 1:          x            *           .80             =            (x)(.8)

<u>Sol'n 2:      15 - x        *           .30             =          (15 - x)(.3)</u>

Total:          15            *          .50              =          .8x + .3(15 - x)

                                15(.5)                        =         .8x + 4.5 - .3x

7.5 = .5x + 4.5

3.0 = .5x

6 = x

Answer: 6 liters of 80% and 9 liters of 30%

5 0
3 years ago
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