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jeka57 [31]
4 years ago
9

If 5+20*2^(2-3x)=10*2^(-2x)+5, what is the value of x? a –3 b –2 c 2 d 3

Mathematics
2 answers:
Sergeu [11.5K]4 years ago
6 0
Step 1: get rid of the +5 on both sides.
Step 2: divide by 10 on both sides

Then you have: 2*2^(2-3x) = 2^(-2x)

The factor 2 on the left can be brought into the exponent because you're simply multiplying with 2 more...

2^(1+2-3x) = 2^(-2x)

Now you can equate the exponents:

3-3x = -2x => 3 = -2x+3x => x=3

so d is your answer.
RUDIKE [14]4 years ago
3 0

Answer: 3

ya welcome

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Lostsunrise [7]

Answer:

  no

Step-by-step explanation:

The prices are inconsistent, so there is no unique price that can be set for either an apple or an orange that will give the total prices indicated.

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The first relation can be written as ...

  $10 = 4A +4O

  $10 = 4(A +O) . . . . factor out 4

  $2.50 = A +O . . . . divide by 4

The second relation can be written as ...

  $12 = 6A +6O

  $12 = 6(A +O) . . . . factor out 6

  $2 = A +O . . . . . . . divide by 6

These two relations give different prices for 1 apple and 1 orange. There is no price that can be set for either fruit that will give this result.

No unique prices can be assigned.

7 0
2 years ago
Which expression has a value of 1/36?
Schach [20]
(1/36) = 0.0277777777778

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(1/2)^5 =  <span>0.03125

The only one that matches with the value of 1/36 is (1/6)^2. Therefore, your answer is C. (1/6)^2
</span>




6 0
3 years ago
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This is worth 18 points to whoever gets it right and also if you do get it right first you'll get voted as brainlyess answrr
Bumek [7]
The correct answer is <span>1 and 1/2

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4 0
3 years ago
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If p varies jointly as q and r, and p = 150 when q = 18 and r = 5, find q when p = 345 and r = 9. TA​
hichkok12 [17]

Answer:

the answer is saltiness, why?

Step-by-step explanation:

because when i was little my bro used to ask me to go up and down with my mouth on his cucumber and i hated it but he offered me candy. Anyway now he gives me 5$ so ill do it more and as many times :D so i can get a new robucks card

8 0
3 years ago
Mia went for a long bike ride. She rode 10.25 kilometers each hour for 4.25 hours. How far did Mia travel on her bike ride?
Art [367]

Answer:

43.5625 kilometers

Step-by-step explanation:

hi!

To solve this problem, you have to take note of the important information which is:

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To answer the question, you need to take Mia's hourly rate (10.25 km PER hour) and multiply that by how many hours she rode her bike for (4.25) which equals 43.5625 kilometers

10.25*4.25 = 43.5625 kilometers

I hope this helped :)

6 0
3 years ago
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