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yulyashka [42]
3 years ago
5

Solve for a 1/2 a-9=11

Mathematics
1 answer:
Dmitry [639]3 years ago
6 0

Answer:

a=31

Step-by-step explanation:

1/2(a-9)=11

a-9=22

a=22+9

a=31

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Answer:

7.5 ?

Step-by-step explanation:

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3 years ago
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Which of the following is one branch or part of the government?
baherus [9]

Answer:

Congress

Step-by-step explanation:

6 0
3 years ago
MATHEMATICS: A boy leaves home at 09:15 hours and arrives at 10:05 hours. If he travels nonstop at an average speed of 6kmh ,wha
love history [14]

Answer:

5 km.

Step-by-step explanation:

We have to calculate the distance if we apply the speed formula that would be the distance in a given time:

v = d / t

therefore, if we solve for distance it would be:

d = v * t

Now the speed is 6 km / h but the time must be calculated, it leaves at 9:15 and returns at 10:05, that is, there is no exact time but 50 minutes, one hour equals 60 minutes, therefore:

50 min * 1 h / 60 min = 0.833 h, that is, the child took 0.833 hours to get to school, now if we replace:

d = 6 * 0.8333

d = 5

In other words, the distance between the school and the house is 5 km.

5 0
3 years ago
In a chemistry class, 12 L of a 12% alcohol solution must be mixed with a 20% solution to get a 14% solution. How many liters of
tigry1 [53]
Let x = liters 20% solution to be added
then

.12(12) + .20x = .14(12+x)
.12(12) + .20x = .14(12+x)
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Hope this helped!!
3 0
3 years ago
Please answer the top half ASAP I need it in 2h please
NeTakaya

Answer:

  1. 4/7
  2. 6/11
  3. 12/17
  4. 19/30
  5. 10/17
  6. 7/15
  7. 11/28
  8. 8/21
  9. 7/3
  10. 23/49
  11. 3/7
  12. 1/2
  13. 4/7
  14. 5/22
  15. 3/7
  16. 3/4
  17. 1/3
  18. 1/10
  19. 3/8
  20. 1/2
  21. 3/8
  22. 4/7
  23. 65/168
  24. 8/21
  25. 40/63
  26. 4/3
  27. 1/2
  28. 9/7
  29. 9/5
  30. 21/44
4 0
3 years ago
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