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
nexus9112 [7]
2 years ago
7

13. Given that y varies as x^2 and that y = 36 when x=3, find:

Mathematics
1 answer:
saw5 [17]2 years ago
3 0

Answer:

K=4

Y=16

X=4

Step-by-step explanation:

y = kx {}^{2}  \\ finding \: k \: when \:  y= 36 \: and \: x = 3 \\ 36 = k(3) {}^{2}  \\ 36 = 9k \\ dividing \: through \: by \: 9 \\  \frac{36}{9}  =  \frac{9k}{9}  \\ 4 = k \\ k = 4 \\ findnig \: y \: when \: x = 2 \\ y = 4(2) {}^{2}  \\ y = 4 \times 4 = 16 \\ finding \: x \: when \: y = 64 \\ 64 = 4 \times x  \\ 64 = 4x \\ dividing \: through \: by \: 4 \\  \frac{64}{4}  =  \frac{4x {}^{2} }{4}   \\ 16 = x {}^{2}  \\ square \: root \: bothsides \\  \sqrt{16}  = x {}^{2}  \\ 4 =  x \\ x = 4

You might be interested in
Hi, can someone help me with this word problem... i struggle with word problems and can seem to figure this one out!
Kruka [31]
15) 1,054,850

16)5,226
(Sorry for my sloppy work but I used these steps to solve it)

3 0
3 years ago
Which of the folowing is equal to 7 1/3
Romashka-Z-Leto [24]

Answer:

22/3

Step-by-step explanation:

Make the whole number turn into a fraction, (21/3) and add the numerator (1/3), which the answer would be 22/3

7 0
3 years ago
Barbara is making candy bags with her birthday party she has 24 lollipops, 12 candy bars, and 42 pieces of gum she wants each ba
Arisa [49]
She can make about 5 bags and there will be 4 lollipops, 2 candy bars, and 7 pieces of gum in each bag.

So this is how to solve it:
Basically what you’re doing here is called finding the gcf, or greatest common factor. What you have to do is find what number can divide by 24, 12, and 42; so I chose 2.
After dividing all these numbers by two you get 12, 6, and 21.
3 can divide by all these numbers
After dividing by three you get 4(lollipops), 2(candy bars) and 7(pieces of gum)
Since you can not divide by one number for all of these numbers, 4, 2 and 7 are your final answers.

To find how many’s bags you can make, the answer is 5 since you divided by 2 and 3 and you add them together.

I hope I explained this well! Good luck :D
3 0
3 years ago
Please help i love u
OLEGan [10]

helped.

This answer was fact checked as TRUE by independent fact checkers

8 0
2 years ago
What's your favorite subject?
nexus9112 [7]

Answer:

math thank you very much

6 0
3 years ago
Read 2 more answers
Other questions:
  • Dale bought a map of his city.it uses a scale of 1 inch = 8miles. dales house and school are 1 1/2 inches apart on the map. how
    8·1 answer
  • Barbara sells iced tea for a $1.49 per bottle and water for $1.25 per bottle. She wrote a equation to find the number of drinks
    11·2 answers
  • Please help me with this.!
    9·1 answer
  • Which order pair Is a solution of y= -6x - 7
    13·1 answer
  • Solve for x. Write the smaller solution first, and the larger solution second.
    9·2 answers
  • The time it takes a customer service complaint to be settled at a small department store is normally distributed with a mean of
    11·1 answer
  • A TV has a listed price of $578.98 before tax. If the sales tax rate is 8.25%, find the total cost of the TV with sales tax incl
    5·1 answer
  • Learn with an example
    12·1 answer
  • HAVE PICTURE PLEASE HELP!
    7·2 answers
  • What is the value of (f+g)(5)if f(x)=7x-2 and g(x)=9x-4?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!