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
noname [10]
3 years ago
13

Suppose y varies directly with x, and y = 24 when x = 8. What is the value of y when x = 10?

Mathematics
2 answers:
Anika [276]3 years ago
8 0
The statement suppose <span>that y varies directly with x is best represented as:

y </span>α x

To make it into equality, we insert a proportionality constant, k:

y= kx

Using the initial conditions, we solve for k.

y= kx
<span>y = 24 when x = 8
</span><span>
24 = k(8)
k =3

Thus, when </span><span>x = 10</span><span>,
</span>
y = 3(10)
y = 30
Solnce55 [7]3 years ago
6 0
First, you want to set up a proportion.

8/24 = 10/y

Cross multiply to get

240 = 8y, then divide 8 from both sides to get y = 30.
You might be interested in
Do any of y’all know the answer ? Thank you !
zubka84 [21]

Answer:

B

Step-by-step explanation:

5 0
3 years ago
WIll give brainiest answer if you are correct.
Citrus2011 [14]
I would say its 28 but I have no idea.
8 0
3 years ago
The average height of females in the freshman class of a certain college has historically been 162.5 centimeters with a standard
Yanka [14]
To check whether there is a reason to believe that the average height has been changed, we can check one right-tailed test and establish null and alternate hypotheses.

H₀ (null hypothesis): μ = 162.5
H₁ (alternate hypothesis): μ > 162.5

Since we have two samples to compare, we can use the formula below to compute for the z-score.

Z = \frac{(\chi - \mu)}{ \sigma / \sqrt{n}}

where Z is the z-score, Χ is the new mean of the sample, μ is the expected average value, δ is the standard deviation, and n is the sample size. Given the values we have, 

Z = \frac{(165.2 - 162.5)}{6.9 / \sqrt{50}}
Z \approx 2.77

Assuming that the significance level, α, is 0.05. Now that we have a z-score of 2.77, we can use the z-table to find its p-value. Thus, we have P(Z > 2.77) = .0028. Thus since our p-value is less than α, H₀ is rejected. That means that the average height of the female freshman students has changed.
 


4 0
2 years ago
Read 2 more answers
A fruit seller has 264 oranges packed in bags, with 8 oranges in each bag. She sells each bag of oranges for $4. How much money
Tomtit [17]

Answer:

234 the answer

Step-by-step explanation:

i hope its help

3 0
3 years ago
2x + 9<br> 8x + 1<br> Solve for x
Afina-wow [57]

Answer:

2x +9+8x+1=180

This on picture answer.

7 0
3 years ago
Other questions:
  • Confused on the second part
    7·1 answer
  • What is true about the lines Y=7x-10 and Y=7x +10
    5·2 answers
  • F(x)=x^2-3x-2 is shifted 4 units right. The result is g(x). What is g(x)?
    15·2 answers
  • Thirteen people are being honored for their work in reducing pollution. In how many ways can we line up these people for a pictu
    13·1 answer
  • Which step is wrong, Step 1, Step 2, Step 3 or Li didn't make a mistake
    15·1 answer
  • A. Cual De Las Siguientes Medidas No Se Debería Escribir En Notación Científica:
    9·1 answer
  • Solve the simultaneous linear equations using substitution method
    12·1 answer
  • Solve the following system of equations algebraically.<br> x + 2y = 18<br> y = x-3<br> X=<br> y =
    7·2 answers
  • Find the area of the trapezoid HELP PLEASE
    5·1 answer
  • Brass is made up of copper and zinc. 100 grams of brass contains 20 grams of zinc.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!