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
Ostrovityanka [42]
3 years ago
8

Caroline, Krutika and Natasha share some sweets in the ratio 4:3:3. Caroline gets 9 more sweets than Natasha. How many sweets do

es Krutika get?
Mathematics
1 answer:
vagabundo [1.1K]3 years ago
3 0

Answer:

Krutika gets 27 sweets

Step-by-step explanation:

Let

x ---> number of sweets that Caroline gets

y ---> number of sweets that Krutika gets

z ---> number of sweets that Natasha gets

we know that

x:y:z=4:3:3

so

\frac{x}{y}=\frac{4}{3}

x=\frac{4}{3}y ----> equation A

\frac{x}{z}=\frac{4}{3}

x=\frac{4}{3}z ----> equation B

y=z ---> equation C

Caroline gets 9 more sweets than Natasha

so

x=z+9 ---> equation D

substitute equation D in equation B

z+9=\frac{4}{3}z

solve for z

\frac{4}{3}z-z=9

\frac{1}{3}z=9\\z=27\ sweets

therefore

Krutika gets 27 sweets

You might be interested in
Has anyone took the Parametric Functions Test part 1 for Pre calculus ???? If so do you remember the answers??? Offering lots of
Rainbow [258]

Hey there!

Yes, I do remember the Parametric Function test(s) but there were multiple tests. Could you add some pictures for some of the problems? I'd be glad to help.

<em>God Bless!</em>

<em>-X8lue83rryX</em>

7 0
4 years ago
Consider the system of differential equations dxdt=−4ydydt=−4x. Convert this system to a second order differential equation in y
koban [17]

\dfrac{\mathrm dy}{\mathrm dt}=-4x\implies x=-\dfrac14\dfrac{\mathrm dy}{\mathrm dt}\implies\dfrac{\mathrm dx}{\mathrm dt}=-\dfrac14\dfrac{\mathrm d^2y}{\mathrm dt^2}

Substituting this into the other ODE gives

-\dfrac14\dfrac{\mathrm d^2y}{\mathrm dt^2}=-4y\implies y''-16y=0

Since x(t)=-\dfrac14y'(t), it follows that x(0)=-\dfrac14y'(0)=4\implies y'(0)=-16. The ODE in y has characteristic equation

r^2-16=0

with roots r=\pm4, admitting the characteristic solution

y_c=C_1e^{4t}+C_2e^{-4t}

From the initial conditions we get

y(0)=5\implies 5=C_1+C_2

y'(0)=16\implies-16=4C_1-4C_2

\implies C_1=\dfrac12,C_2=\dfrac92

So we have

\boxed{y(t)=\dfrac12e^{4t}+\dfrac92e^{-4t}}

Take the derivative and multiply it by -1/4 to get the solution for x(t):

-\dfrac14y'(t)=\boxed{x(t)=-\dfrac12e^{4t}+\dfrac92e^{-4t}}

7 0
3 years ago
Solve for “z.”<br><br> Please help!
Darya [45]

Answer: Z=5

Step-by-step explanation:

Solve the rational equation by combining expression and isolating the variable z

7 0
3 years ago
The surface area of rectangular prism is 48 ft.². The area of its front is 4 ft.², and the area of one side is 10 ft.². What is
DaniilM [7]
I think the answer is 20.
3 0
3 years ago
The points plotted below are on the graph of a polynomial. In what range of x-values must the polynomial have a root?
joja [24]

Actually, I think the question should be, "In what range(s) of x-values must there be a root of the POLYNOMIAL?" Unless you are working with some real strange maths, polynomials are smooth and continuous. If you drew a smooth and continuous line through the points in the graph, where would the line have to cross the x-axis?


6 0
3 years ago
Other questions:
  • A) Explain...
    9·1 answer
  • Can you help me figure out this problem???? Pleaseeeeeeeeeee!!!!!!!!!!!
    5·1 answer
  • Which value is the solution to the equation? -3(t-7) = 24
    15·1 answer
  • Rashad is having a picnic for 62 guests. He plans to serve each guest at least one hamburger. If each package, p, contains eight
    15·1 answer
  • NEED HELP QUCKILY PLZ HURRY
    5·2 answers
  • Quadrilateral ABCD is reflected across the x-axis and then reflect across the y-axis to form quadrilateral A′B′C′D′. If the coor
    14·1 answer
  • Please check out my question
    7·2 answers
  • PLZ HELP!!!!! BEST ANSWER WILL BE CHOSEN FOR BRAINLIEST!
    12·1 answer
  • What is 305.5 divided by 1/100?
    6·1 answer
  • NEED HELP ASAP WILL MARK BRAINLIEST
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!