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
Alex
3 years ago
6

What is the value of x in the equation x – y = 30, when y = 15?

Mathematics
2 answers:
asambeis [7]3 years ago
6 0
X= 45, you would place 15 into y's place, which would give you x-15= 30... then you would add 15 to both sides, which would give you x=45<span />
Citrus2011 [14]3 years ago
5 0
Hello There :)
This is a simple problem with a simple solution.
First change your variable of y to 30
Then turn the problem around to y + 15
Then you should get a answer of 45
45 would be x
Hope This helped!!!!
You might be interested in
The cost function in a computer manufacturing plant is C(x) = 0.28x^2-0.7x+1, where C(x) is the cost per hour in millions of dol
Licemer1 [7]

9514 1404 393

Answer:

  $562,500 per hour

Step-by-step explanation:

The cost will be a minimum where C'(x) = 0.

 C'(x) = 0.56x -0.7 = 0

  x = 0.7/0.56 = 1.25

The cost at that production point is ...

  C(1.25) = (0.28×1.25 -0.7)1.25 +1 = -0.35×1.25 +1 = 0.5625

The minimum production cost is $562,500 per hour for production of 1250 items per hour.

_____

<em>Additional comment</em>

This is different than the minimum cost <em>per item</em>. This level of production gives a per-item cost of $450. The minimum cost per item is $358.30 at a production level of 1890 per hour.

5 0
2 years ago
Find the set of values of k for which the equation 2x2 - 10x + 8 = kx has no real root
Masja [62]

Answer: k= -10x+12

Step-by-step explanation:

6 0
3 years ago
Recipe ingredients remain in a constant ratio no matter how many servings are prepared. Which table shows a possible ratio table
Phantasy [73]

A table which shows a possible ratio table for ingredients X and Y for the given number of servings is table 4.

<h3>What is a proportion?</h3>

A proportion can be defined as an equation which is typically used to represent (indicate) the equality of two (2) ratios. This ultimately implies that, proportions can be used to establish that two (2) ratios are equivalent and solve for all unknown quantities.

Mathematically, a direct proportion can be represented the following equation:

y = kx

<u>Where:</u>

  • y and x are the variables.
  • k represents the constant of proportionality.

Since the recipe ingredients remain in a constant ratio, we have:

k = y/x

For table 1, we have:

k = 2/1 = 2.

k = 3/2 = 1.5.

k = 4/3.

For table 2, we have:

k = 2/1 = 2.

k = 4/2 = 2.

k = 8/3.

For table 3, we have:

k = 2/1 = 2.

k = 3/2 = 1.5.

k = 5/3.

For table 4, we have:

k = 2/1 = 2.

k = 4/2 = 2.

k = 6/3 = 2.

In conclusion, a table which shows a possible ratio table for ingredients X and Y for the given number of servings is table 4 as shown in the image attached below.

Read more on proportionality here: brainly.com/question/12866878

#SPJ1

3 0
1 year ago
Determine the percentage increase from 10 yards to 13 yards
julia-pushkina [17]

Answer:

30%

Step-by-step explanation:

In this case, we have a positive change (increase) of 30% because the new value is greater than the old value. Using this tool you can find the percent increase for any value.

Hope this helps!

Brain-list?

3 0
3 years ago
Consider the numbers 0, 10, 20, 30, and 40. Multiply each by 4 and compare the result to 60 to determine into which of the follo
olya-2409 [2.1K]

Answer:

b) 10 to 20

Step-by-step explanation:

You have to multiply each of the given numbers by 4, and add 8 to that result.

So:

  • 0*4+8  = 8
  • 10*4+8 = 48
  • 20*4+8 = 88
  • 30*4+8 = 128
  • 40*4+8 = 168

And 60 is between the result of <u>10 and 20</u>, so that's the interval you have to select.

<em>The correct answer is b) 10 to 20</em>

3 0
3 years ago
Other questions:
  • Suppose that all sides of a quadrilateral are equal in legth and opposite sides are parallel. Use vector methods to show that th
    9·1 answer
  • How many feet in a mile?
    5·2 answers
  • How do you convert 7 over 8 into a decimal?
    6·1 answer
  • What is the difference of -9 - 17 =
    7·1 answer
  • Which correctly shows how to use the GCF and the distributive property to find an expression equivalent to 24 + 44?
    9·2 answers
  • If n is a positive integer, which of following statement is individually sufficient to prove whether 289 is a factor of n?a. The
    13·1 answer
  • Last weekend,Mandy collected 4 times as many shells as Cameron.Together how many shells did Mandy collect?write an equation and
    8·1 answer
  • How long will it take you to ski at a distance of 36 miles at the speed of 3 mph
    12·2 answers
  • 20 points!Can someone please help me I will mark brainliest
    13·1 answer
  • I WILL GIVE YOU POINTS Pls help meh :c
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!