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
Burka [1]
3 years ago
8

If a number is increased by 4, its square is increased by 64. Find the number

Mathematics
2 answers:
Anit [1.1K]3 years ago
5 0

Answer:

12

Step-by-step explanation:

12 - 4 = 8

The square of 8 is 64

quester [9]3 years ago
3 0

Answer:

6

Step-by-step explanation:

(n + 4)^2 = n^2 + 64

n^2 + 8n + 16 = n^2 + 64

8n = 48

n = 6

You might be interested in
Diana bought a car for $5000 and plans to sell it to make a 20% profit. What should she sell it for to make the profit she desir
nalin [4]
You need to know 20% of $5000.  "Of" means "times".  

$5000 x 0.20 (which is 20% written as a decimal)

=$1000 profit she wants to make

$5000 (original price) + $1000 (profit) = $6000 (sale price)
4 0
3 years ago
Read 2 more answers
B. How many hundreds are in 4362? How many<br> whole hundreds?
zhannawk [14.2K]

Answer:

3

Step-by-step explanation:

4362

3= hundreds place value

So that means there are 3 whole hundreds

6 0
3 years ago
Read 2 more answers
Write a problem that could be modeled with y=200(0.9).
Lunna [17]

First, I need to decide what equation this is like.

I believe this is y=mx.

We know that x is typically the input, and m is the constant function.

Y is the output.

So the original function may have been y=200x.

The only difference is now we've been given something to apply to the equation, in place of x.

2. <em>Imagine a cloning machine. Whatever you put in, you get a copy of, and the original thing you put in. Its function would be y=2x. Let's pretend we decided to put three things in; 3 would go where x is. </em>

<em>Y would be the result of 3 copies and their originals, or 2(3).</em>

<em>(6=2(3))</em>

<em>Now, when someone else decides to use the cloning machine, they may put any number in, but the only properties that will change are y and x, not m.</em>

<em>The function will remain y = 2x. Any number could go in place of x, and multiplying x by 2 will give you the y. As long as you have a different value for x, the y will never be the same.</em>

3. So now we have an understanding of what it means, we see that we have been given an x value to insert; an input.

A more practical example could be someting with money. This won't be entirely realistic, because we are dealing with a fraction of a number and another large number.

4. I decided to go with flour. I wanted the 200 to represent pennies, or cents. Before I landed on this, I looked up the cost of flour per pound. I found that the average is .43 dollars, which isn't terribly close to two dollars. But maybe the flour is high quality, so we can stick with that.

5. Seeing that this equation, y=200x, means we are charging 200 cents, or two dollars, we can write a problem from here.

Sylvia is in charge of selling home-harvested flour from an organic farm. She charges two dollars per pound of flower. Today, her next-door neighbors hope to buy a ninth of pound of flour, and they insist on paying with pennies. How many pennies do they need to pay for their order?

<em>Let me know if this helped, or if you have any questions! </em>

3 0
3 years ago
A function is a special type of relation where
Citrus2011 [14]

Answer: the answer would be B :)

5 0
3 years ago
Read 2 more answers
Y=30w+200 please help me
marissa [1.9K]

Answer: That is the final answer, y=30w+200

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Choose the most accurate statement based on the graph shown.
    9·2 answers
  • If you horizontally stretch the quadratic parent function, f(x) = x2, by a factor of 5, what is the equation of the new function
    5·1 answer
  • A toy manufacturer wants to minimize her cost for producing two lines of toy airplanes. Because of the supply of materials, no m
    7·1 answer
  • Evaluate the expression ( 1 + 2 i ) ( − 2 − 1 i ) and write the result in the form a + b i .
    10·1 answer
  • Hello please help thanks
    15·1 answer
  • I need help plz step by step explanation
    6·2 answers
  • Avram borrows $14,500 at 5.4% simple interest to open a small business. His bank allows him 9 years to pay back the loan. How mu
    6·1 answer
  • Work out the mean.<br> 1, 3, 3. 4. 6, 9, 9
    9·2 answers
  • if there are 48 students in a class and 42% of those students have a dog what percent of students have a dog or a cat?
    15·1 answer
  • two angles are vertical. one angles measures 10x - 6, and the other angles measured 8x + 12. find the measure of each angle .
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!