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Tamiku [17]
3 years ago
14

Pleaseeeeeeeeeee helppppppp i will mark brainlest

Mathematics
2 answers:
schepotkina [342]3 years ago
7 0

Answer:

b) 40

Step-by-step explanation:

By angle sum property of a triangle:

x°+20°+120°=180°\\x°+140°=180°\\x°=180°-140°\\x° = 40°\\\huge \red {\boxed {\therefore x = 40}}

IgorC [24]3 years ago
7 0

Answer:

B)40°

Step-by-step explanation:

Sum of angles in a triangle =180°

120°+20°+x°=180°

140°+×°=180

Collect like terms

x°=180°-140°

x°=40°

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, 8 technicians can test 560 samples in 36 hours. How long
Yakvenalex [24]

Answer:

0.75 days (im a bit unsure but i tried my best, hope this helps :) )

Step-by-step explanation:

If it takes 8 technicians 36 hours to test 560 samples, find how many technicians can test 525 samples.

8: 560

x: 525

x= 7.5 (which is considered 7)

Then, find how long it takes to sample 525 samples, when 560 are done in 36  hours;

560: 36

525: x

x= 33.75 (which is considered 34 hours)

The last step is to check how long 15 technicians take to sample 525 samples when 8 can do the same number in 34 hours. this is inverse proportion so dont forget to flip one numerator and denominator

8; 34

15; x

it will become

15:34

8: x

x= 18 hours

Divide by 24 for days hence 0.75 days

5 0
4 years ago
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MAVERICK [17]

Answer:

9

Step-by-step explanation:

7 - (-2) = 9

4 0
3 years ago
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vredina [299]
The answer is 435 :)
3 0
3 years ago
In a certain state, license plates consist of three letters followed by three numbers.
Sati [7]
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