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
Elodia [21]
3 years ago
14

1. Y varies inversely with x. If y = 9 when x = -5, find the value of x when y=-6.

Mathematics
1 answer:
Gelneren [198K]3 years ago
3 0

Answer:

Step-by-step explanation:

1 )  Y∝ 1 / X

Y = k / X

Y = 9 , X = -5

Putting the values in the relation above

9 = k / - 5

k = -45

Y = - 45 / X

Put Y = - 6

- 6 = - 45 / X

X = - 45 / -6

= 7.5

2 )

Luke and Nora can peel 12 carrots in 5 minutes

in 1 minute Luke and Nora can peel 12 / 5 carrot

in 1 minute Luke alone   can peel 12/ 11 carrot .

In 1 minute Nora alone will peel (12 / 5 -  12/ 11  ) carrot

(12 / 5 -  12 / 11  )

= 2.4 - 1.1

= 1.3 carrot

In 1 minute Nora alone will peel 1.3 carrot

1.3 carrot in 1 minute

8 carrot in 8 / 1.3 minute

= 6.15 minutes.

In 1 minute Nora alone will peel 8 carrot in 6.15 minutes working alone.

You might be interested in
How do I solve this? I know it's easy but I don't understand clearly​
faltersainse [42]

The answer is r = p/2n - x/n

8 0
1 year ago
An athletic facility is building an indoor track. The track is composed of a rectangle and two semicircles.
Mazyrski [523]

Answer:

(The image is not provided, so i draw an idea of how i supposed that the problem is, the image is at the bottom)

Ok, we have a rectangle of length x by r.

At the extremes of length r, we add two semicircles.

So the perimeter will be equal to:

Two times x, plus the perimeter of the two semicircles (that can be thought as only one circle).

The radius of the semicircles is r, and the perimeter of a circle is:

C = 2*pi*r

where pi = 3.14

Then the perimeter of the track is:

P = 2*x + 2*pi*r.

b) now we want to solve this for x, this means isolating x in one side of the equation.

P - 2*pi*r = 2*x

P/2 - pi*r = x.

c) now we have:

P = 660ft

r = 50ft

then we can replace the values and find x.

x = 660ft/2 - 3.14*50ft = 173ft

5 0
3 years ago
(6x-9)+5=2 can you solve this
ehidna [41]
(6x -9) + 5= 2
= -54 + 5 
=  2
7 0
3 years ago
Read 2 more answers
34% of _____ peaches is 17 peaches <br><br> Help please
lakkis [162]

Answer:

50

Step-by-step explanation:

34%=34/100

34/100 = 17/50

8 0
2 years ago
Read 2 more answers
there are five people in a room each person shakes the hand of every person exacally once how many handshakes or exchanged
nalin [4]
25  because there's 5 people so you take 5 times 5
5 0
3 years ago
Other questions:
  • Which choice is equivalent to sqroot-125 PLEASE HELP
    6·2 answers
  • The equation of the line of best fit for a scatter plot is yˆ=−14x+10 where x is age in years and y is average number of hours o
    12·1 answer
  • At a price of 4.89 per pound, what is the cost 3.95 pounds of deluxe mixed nuts?
    11·2 answers
  • Which set of data has the same mode and median?
    9·1 answer
  • Mr. I does a job in x hours while Mr. L can do it in y hours. How much of the job could they do together if they were to work fo
    15·1 answer
  • If (-9, 2) is on the graph of Flx), which point must be on the graph of the
    12·1 answer
  • Only question one. please answer and show full working out. will reward with brainliest.
    14·1 answer
  • Please help i need to finish
    13·1 answer
  • I earned $92 for cutting yards. I gave my brother 20% of my money for helping me. How much money did I give my brother?
    15·1 answer
  • Jose D is looking for a skateboard. He sees one that costs $148. The owner is offering him a 20% discount.. What is the price of
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!