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ANEK [815]
3 years ago
15

E

Mathematics
2 answers:
dybincka [34]3 years ago
7 0

Answer:

A. 21, 16, 28

Step-by-step explanation:

1st side = x

2nd side = x-5

3rd side = x+7

x+x-5+x+7 = 65

3x + 7 - 5 = 65

3x + 2 = 65

3x = 65-2

3x = 63

63/3 = 21

x = 21

therefore, the sides are 21, 16, and 28

kotykmax [81]3 years ago
6 0

Answer:

The answer is A.

Step-by-step explanation:

Basically as it says, the first length is 5 more than the second and the third is 7 more than the first.

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I need help with these two
Alika [10]

Answer:

19. A

20. A

Step-by-step explanation:

19. tan(53)=15/x

x(tan(53))=15

x=15/(tan53))

x=11.3 feet


20. tan(60)=12/x

x(tan(60))=12

x=12/(tan(60))

x=6.93, or 4sqrt3

4 0
3 years ago
It takes 20 minutes for 5 people to paint 5 walls.
Sergio039 [100]

Answer:

heres what i can find on the internet

Step-by-step explanation:

So, 5 walls = 4500 ft2 & since there are 5 people (all doing equal work) then each man paints 900 ft2 in 20 minutes. So, the total time is 20 minutes.

7 0
3 years ago
Please help this is due tomorrow
mote1985 [20]

Answer:

8

Step-by-step explanation:

because if you do it then the anwser would be 8.5 so it could be 8 or 9

7 0
3 years ago
Read 2 more answers
Find the area of the circle of 7 inches
Arisa [49]

Answer:

38.480

Hope this helps!!!:)

Step-by-step explanation:

7 0
3 years ago
How can I answer this type of question?
Alex
It would be: 0.38 / 0.25
Cancel both the decimals, 
= 38/25
Now, it becomes too easy can be simplified by division
= 38/25 = 1.52

In short, Your Answer would be 1.52

Hope this helps!
4 0
3 years ago
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