1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
My name is Ann [436]
2 years ago
13

Think of a number, double the number,

Mathematics
1 answer:
Rashid [163]2 years ago
5 0

Answer:

Let x be the number

double x = 2 x

square the result  (2x)^2

(2x)^2 - x     subtract the original number

4 x^2 - x = 33

4 x^2 - x - 33 = 0

Solve the quadratic

(1 +- (1 + 4 * 132)^1/2) / 8

= (1 + 528^1/2) / 8 = (1 + 23) / 8   = 3    using the positive exponent

Check:

(2 * 3)^2 - 3 = 36 - 3 = 33

You might be interested in
Determine the period
True [87]
To raise something upward with the force of a lever in order to remove, open, or look beneath it.
8 0
1 year ago
Tim's phone service charges $24.39 plus an additional $0.24 for each text message sent per month. If Tim's phone bill was $30.39
alex41 [277]
The answer is D - $0.24x + $24.39 = $30.39
7 0
3 years ago
Javier’s Bakery sells donuts in packages of 3 and cookies in packages of 5 today the backers sold the same number of donuts and
tekilochka [14]

The answer is A.) 5 because it’s the smaller number

8 0
3 years ago
3^4 + 3 x 5 =<br> (the '^4' is an exponent)
Vesnalui [34]

Answer:

96

Step-by-step explanation:

3^4 = 3*3*3*3 = 9*9= 81

3*5=15

81 + 15 = 96

Hope this helps!!

4 0
2 years ago
Read 2 more answers
some friends went to a local movie theater and bought four large buckets of popcorn and six boxes of candy.The total for the sna
WARRIOR [948]

The total of 2 buckets of popcorn and 3 boxes of candy would be $23.25

To answer this question you need to form a set of simultaneous equations and solve them. We can do this by saying that a bucket of popcorn = P, and a box of candy = C. Then we can say:

4P + 6C = 46.50

P + C = 9.75

There are then two possible ways to solve; you can either say that C = 9.75 - P using the second equation and then substitute it into the first, or you can multiply the second equation by either 4 or 6 to cancel out P or C.

I’m going to multiply the second equation by 4:

4P + 4C = 39

Now we can subtract this for, the first equation:

4P + 6C = 46.50

4P + 4C = 39

2C = 7.50

C = 3.75

Now we can substitute this value of C into one of the equations to find P:

P + C = 9.75

P + 3.75 = 9.75

P = 6

And now to answer the question, you just multiply P by 2 and C by 3 and add them together, which gives you $23.25

I hope this helps! Let me know if you have any questions :)

6 0
2 years ago
Other questions:
  • What is 2.9% of 1000
    14·2 answers
  • X+2y=12 <br> 3x-10y = 0<br><br> y=?<br> x=?
    13·2 answers
  • Round each whole number to the given place value. <br> 437 to the tens place
    9·1 answer
  • A prism with a base area of 8 cm² and a height of 6 cm is dilated by a factor of 54.
    7·1 answer
  • A ferris wheel holds 48 people. there are 823 people with tickets to ride the ferris wheel. how many times will the ferris wheel
    7·2 answers
  • What is the subsitute for 12n; n=3?
    8·1 answer
  • The product of s and 10
    5·2 answers
  • Solving for the missing side of the triangle , please help
    11·1 answer
  • 10 ft<br> А<br> - “不<br> 6 ft<br> v<br> 10 ft -<br> 12 ft<br> B<br> C | 12 ft<br> 4 ft<br> 4 ft
    14·1 answer
  • 4. Gordon worked 621 hours in the last six months. He worked the same number
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!