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
HACTEHA [7]
3 years ago
15

If y =-5 when x =12.5 find x when y =15

Mathematics
1 answer:
Naily [24]3 years ago
6 0

Answer:

x = -37.5

Step-by-step explanation:

Set up a proportion so -5/12.5 = 15/x

Solve for x so -5x = 15(12.5) so -5x = 187.5 so x = -37.5

You might be interested in
Choose the example of an inverse relationship
iren2701 [21]

The mathematical explanation is that if f(x) = x + 2 and y (x) = x -2, the relationship is inverse. Also, f(x) = -x and f(x) = 1/x to eliminate a zero value.

7 0
3 years ago
The ratio of John's money to Jimmy's money is 5:8. Jimmy spent 1/4
erma4kov [3.2K]

Answer:

a. $3600

b. 6:5

Step-by-step explanation:

Put the question into an equation:

8x - 1/4 x 8x = 5x + 450

(simplify before solving) 6x = 5x + 450

(solve) 6x-5x = 450

x = 450

This means that Jimmy had 8 x 450 $ to start with = 3600

you can check this by subtracting a quarter of 3600 from 3600 and also multiplying 450 by 5 and then obtaining their difference. You get 450!

Now ratio of new amounts:

Jimmy now has: $2700

John still has: $2250

so ratio is 2700:2250

simplify to 6:5

Hope this helps

Please mark brainiest

3 0
3 years ago
Write an inequality comparing the rational numbers -3/4 and -2.
lyudmila [28]

Answer:

Step-by-step explanation:

-2 < -3/4.  Another way in which to do this would be to use the LCD:

-8/4 < -3/4.

Even though 8 has a larger magnitude than does 3, -8/4 is smaller than -3/4.  On the number line, -8/4 (or -2) is to the left of -3/4.

7 0
3 years ago
Jasmine bought 7 yards of fabric that total cost was $45.43 what was the average cost per yard of the fabric she bought.
Doss [256]
$6.49 because 45.43÷7 is 6.49 ~JZ
3 0
3 years ago
Write the equations of the line
Basile [38]
Look at the picture it explains the answer

5 0
3 years ago
Other questions:
  • Help please I have no clue how to do this please show work thanks
    11·1 answer
  • The measure of 2 angles are (6x+30)° and (9x-15)°. what is the value of x if these angles are congruent?
    12·1 answer
  • Which function has an inverse that is also a function?
    9·2 answers
  • A model of a car uses a scale of 2 1/4 inches = 3 feet. If the model is 14 inches long, what is the actual length of the car?
    10·1 answer
  • Help please! i need get answers to 3 and 4 :)
    10·1 answer
  • Which table shows a function that is decreasing only over the interval
    10·2 answers
  • Pls hel me I’m stuck on this question
    7·2 answers
  • How many solutions are there to the equation below?
    8·1 answer
  • The diagram shows a rectangle.
    15·2 answers
  • Anybody!!!!!! Select all that equals to 6(4)(6(-5))
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!