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IRINA_888 [86]
2 years ago
6

1/2a - 4 = 6 try and answer this question

Mathematics
2 answers:
patriot [66]2 years ago
5 0

Answer:

a = 20

Step-by-step explanation:

1/2a - 4 = 6

      +4    +4

--------------------

1/2a = 10

*2        *2

---------------------

1a = 20

/1      /1

----------------------

a = 20<em> -------------------> answer</em>

murzikaleks [220]2 years ago
5 0

Answer:

a = 20

Step-by-step explanation:

1/2a - 4 =  6

1/2a = 10 (bring -4 to the other side)

a = 20 (times 2 by 10)

a = 20 is the answer

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Help please I'm almost done
LUCKY_DIMON [66]
Simple....

3x-10(x+2)=13-7x

Just solve for x.....

3x-10x-20=13-7x

-7x-20=13-7x
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-20=13


NO SOLUTION.

Thus, your answer.
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2 years ago
If m = 9 and z = -7 then<br> what is m? x Z2?
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I think it’s 9 x (-7)(2) which equals -126
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3 years ago
Graph the equation x-y=6
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How many different ways can you make 82 cents using current u.s. currency
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 <span>You can probably just work it out. 

You need non-negative integer solutions to p+5n+10d+25q = 82. 

If p = leftovers, then you simply need 5n + 10d + 25q ≤ 80. 


So this is the same as n + 2d + 5q ≤ 16 

So now you simply have to "crank out" the cases. 

Case q=0 [ n + 2d ≤ 16 ] 

Case (q=0,d=0) → n = 0 through 16 [17 possibilities] 
Case (q=0,d=1) → n = 0 through 14 [15 possibilities] 
... 
Case (q=0,d=7) → n = 0 through 2 [3 possibilities] 
Case (q=0,d=8) → n = 0 [1 possibility] 

Total from q=0 case: 1 + 3 + ... + 15 + 17 = 81 

Case q=1 [ n + 2d ≤ 11 ] 
Case (q=1,d=0) → n = 0 through 11 [12] 
Case (q=1,d=1) → n = 0 through 9 [10] 
... 
Case (q=1,d=5) → n = 0 through 1 [2] 

Total from q=1 case: 2 + 4 + ... + 10 + 12 = 42 

Case q=2 [ n + 2 ≤ 6 ] 
Case (q=2,d=0) → n = 0 through 6 [7] 
Case (q=2,d=1) → n = 0 through 4 [5] 
Case (q=2,d=2) → n = 0 through 2 [3] 
Case (q=2,d=3) → n = 0 [1] 

Total from case q=2: 1 + 3 + 5 + 7 = 16 

Case q=3 [ n + 2d ≤ 1 ] 
Here d must be 0, so there is only the case: 
Case (q=3,d=0) → n = 0 through 1 [2] 

So the case q=3 only has 2. 

Grand total: 2 + 16 + 42 + 81 = 141 </span>
3 0
3 years ago
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