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
vampirchik [111]
3 years ago
13

Select the correct answer.

Mathematics
1 answer:
Veronika [31]3 years ago
4 0

Answer:

B

Step-by-step explanation:

let y = 5x - 3

rearrange making x the subject

add 3 to both sides

5x = y + 3 ( divide both sides by 5 )

x = \frac{y+3}{5}

change y back into terms of x, hence

f^{-1}(x) = \frac{x+3}{5} → B


You might be interested in
John is going camping, and he needs to buy a tent. The outdoor store has one that cost $90, but it's on sale for 25% off. What i
pochemuha

Answer:

A

Step-by-step explanation:

<em>Okay so, im not the best at explaining, but so we have a percentage. its 25%. you want to take the 25% and put it over 100 because a percentage is a number or ratio expressed as a fraction of 100. so it will be written as 25%/100</em>

<em />

<em>divide 25 by 100 and you get 0.25, correct? so that's one step further towards the answer.</em>

<em>then we write x/90 because we don't know (well we do) what we're gonna put. but, we're gonna multiply 0.25 by 90 and we get 22.5, which is equivalent to </em><em>22.50</em><em>.</em>

7 0
3 years ago
Read 2 more answers
A tortoise and a hare are competing in a 2000-meter race. The arrogant hare decides to let the tortoise have a 550-meter head st
andrew-mc [135]

Answer:

a) distance covered by hare d1 = 8t

b) distance covered by tortoise d2 = 5t + 550

c) ∆d = 550 - 3t

Step-by-step explanation:

Given;

Speed of hare u = 8m/s

Speed of tortoise v = 5 m/s

Initial distance of tortoise d0 = 550 m

a) using the equation of motion;

distance covered = speed × time + initial distance

d = vt + d0

For hare;

d0 = 0

Substituting the values;

d1 = 8t + 0

d1 = 8t

b)using the equation of motion;

distance covered = speed × time + initial distance

d2 = vt + d0

For tortoise;

d0 = 550m

Substituting the values;

d2 = 5t + 550

d2 = 5t + 550 m

c) the number of meters the tortoise is ahead of the hare.

∆d = distance covered by tortoise - distance covered by hare

∆d = d2 - d1

Substituting the values;

∆d = (5t + 550) - 8t

∆d = 550 - 3t

6 0
3 years ago
The sum of 2 times p and 2 is 48. What is p?
yaroslaw [1]

Answer:

p = 23

Step-by-step explanation:

2p + 2 = 48

    -2        -2

2p = 46

/2     /2

p = 23

Hope this helps and I hope u have an Amazing day!!

8 0
3 years ago
Select two ratios that are equivalent to <br> what are ratios are equivalent to 2:9
finlep [7]

Answer:

3,18    4,27

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Slope=9/4, y intercept = -4
Tju [1.3M]
Assuming if you are looking for an equation
I can say that the X-intercept= 16/9
but with an equation it would be 9x/4(-4)
7 0
3 years ago
Read 2 more answers
Other questions:
  • Which is cheaper for a $56 item that cost $9.25 to ship. A 15% coupon off the cost of the item or free shipping
    8·1 answer
  • HELP ME PLEASE <br> solve the right triangle
    8·1 answer
  • Ian wants to run 412 miles to get ready for his upcoming race. He has set up 3 markers the same distance apart to show how far h
    12·2 answers
  • Can someone PLZZ help me!!!?
    6·1 answer
  • What is 10.7+ 2 times <br> 30.9
    13·1 answer
  • Write as a decimal number.<br> 9-10
    6·1 answer
  • Please make it correct..I need to pass this...
    11·2 answers
  • I need help please!!!
    15·1 answer
  • Martin tracked the amount of water he drank for an entire week. The bar graph shown here displays the information about his wate
    7·1 answer
  • Find the inverse function of y=7x.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!