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
dezoksy [38]
3 years ago
14

If y varies directly as x and y=4 when x=-2 find y when x=30

Mathematics
1 answer:
katovenus [111]3 years ago
5 0

Answer:

Step-by-step explanation:

y=kx

4=k(-2)

k=-2

y=-2x

when x=30

y=-2*30=-60

You might be interested in
Part 1
bearhunter [10]

Answer:

Sale price:$29.02

Step-by-step explanation:

32.5/100=0.325x43.00=13.975/13.98(rounded)

43.00-13.98=29.02

4 0
3 years ago
Help with the question below
Artemon [7]

Answer:

51

Step-by-step explanation:

24 ^2+45^2=x^2

=51

6 0
3 years ago
Question 9 20% of a particular brand of light bulbs fail in one year. What is the probability that three bulbs out of a random c
Delvig [45]

Answer:

The correct answer is 0.15

Step-by-step explanation:

According to the given scenario, the probability is as follows:

X\sim Bin (n,p)

Here

n = 8

p = 0.20 or 20%

Now this is a binomial probability distribution

P(X) = ^nC_x \times p^x \tmes (1 - p)^{n-x}\\\\P(3) = ^8C_3 \tims 0.20^3 \times (1 - 0.20)^5

= 0.15

Hence, the correct answer is 0.15

5 0
3 years ago
What is the smallest prime number that can be written as the sum of three different prime
snow_tiger [21]
Prime numbers 2,3,5,7,11,13,17,19,23
so 2+3+5=10 no
3+5+7=15 no
3+5+11=19 Yes this is your answer

4 0
4 years ago
Jack earns $50 for washing cars on the weekend. he makes an average of $4.25 in tips per hour. write the function of joe's earni
solong [7]
Add up how much gets paid and how many hours he work I hope this helps good luck !!!!!!!!!!!!!!!
8 0
3 years ago
Other questions:
  • What fraction of the day would you spen in bed if you slept 10 hours
    14·1 answer
  • A student solves a problem correctly 40 times out of 72 tries. Based on this data, what is the probability that the student inco
    11·1 answer
  • What is the circumference of a circle with an area of 16π in²
    6·1 answer
  • In the​ 2009-2010 school year in country​ a, there were 117 comma 000117,000 foreign students from country
    12·1 answer
  • A sample of n = 25 n=25 diners at a local restaurant had a mean lunch bill of $16 with a standard deviation of σ = $ 4 σ=$4 . We
    9·1 answer
  • A pyramid has a height of 9 in. and a base with area 100 in2. Which is closest to the volume of the pyramid? A 30 in3 B 150 in3
    10·1 answer
  • The school bleachers measure 25 feet from the floor diagonally to the top seat. They extend 20 feet from the back wall.
    7·1 answer
  • What is the surface area of this rectangular prism?<br><br> 5 ft<br> 4 ft<br> 12 ft
    14·2 answers
  • The value of all of the quarters and dimes in a
    8·1 answer
  • Jenny's lunch account has $10 in it. She buys lunch three days in a row and spends $2.50, $2, and $2.75. On the fourth day, she
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!