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
padilas [110]
3 years ago
11

What is thirty less than the product of four and a number?

Mathematics
2 answers:
tigry1 [53]3 years ago
6 0

The expression would be 4x-30

jonny [76]3 years ago
5 0

x = number


the product of 4 and that number, 4*x or 4x.


30 less than that, 4x - 30.

You might be interested in
Hello my friends <br>can u help me out?
lana66690 [7]
X = 5 y = 4
x * y = 20
7 0
3 years ago
Read 2 more answers
Please help with Parallel Lines and Transversals
EleoNora [17]
Angle 7 is equal to 3. the line cutting through has a degree of 180. minus 140 from 180 to get the desired angle which is 40 degrees
4 0
3 years ago
Read 2 more answers
∠1 is decomposed into two nonoverlapping angles, ∠2 and ∠3.
Goshia [24]
Its a straight angle
4 0
3 years ago
The first three terms of an arithmetic progression are m,12 and n . Find the value of m+n​
Vera_Pavlovna [14]
<h3>Answer:  24</h3>

===========================================

Explanation:

There are a few approaches. Here's one way to solve.

Let d be the common difference between the terms.

We add d to each term of this arithmetic sequence to get the next term.

  • First term = m
  • Second term = 12 = m+d
  • Third term = n = (m+d)+d = m+2d

Focusing on the second equation, we can solve for d like so

m+d = 12

d = 12-m

This is then plugged into the third equation

n = m+2d

n = m+2(12-m)

n = m+24-2m

n = 24-m

Therefore,

m+n = m+(24-m) = 24

It turns out that it doesn't matter what m and n are because m+n is always equal to 24 in this case.

-----------------

A more concrete example:

Let's say m = 2. We won't set up n just yet but we'll be able to compute it fairly soon.

Since m = 2, this means d = 12-m = 12-2 = 10. This is the gap between adjacent or neighboring terms.

If d = 10, then the third term must be n = 12+d = 12+10 = 22

We can then see that m+n = 2+22 = 24

-----------------

I'll do another example:

m = 5

d = 12-m = 12-5 = 7

n = 12+d = 7 = 19

m+n = 5+19 = 24

Whenever in doubt, or if you get stuck, it helps to come up with actual numeric values to hopefully clear things up.

-----------------

An alternative way to get the answer:

Let's try to determine what m+n is actually saying. We have 12 right in the middle of the first term (m) and third term (n). Because the gap between the numbers is the same (that being d), we know that 12 is the midpoint of m and n. It might help to draw out a number line to see what's going on.

The midpoint of m and n is (m+n)/2

Set this equal to 12 and isolate the "m+n"

(firstTerm+thirdTerm)/2 = second term

(m+n)/2 = 12

m+n = 2*12

m+n = 24

So in general, if the first three terms of the arithmetic sequence are m, k, n, then m+n = 2k.

3 0
3 years ago
Please Help Me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
GuDViN [60]

Answer:

(-2, 11) and (2, 3)

Step-by-step explanation:

<u>Given system of equations:</u>

1) f(x) = x² - 2x + 3 ⇒ y = x² - 2x + 3

2) f(x) = -2x + 7 ⇒ y = -2x + 7

Solve Using the Substitution Method:

<u>Step 1:</u> Substitute the the first equation into the second.

⇒ x² - 2x + 3 = -2x + 7

<u>Step 2:</u> Solve for x.

x² - 2x + 3 = -2x + 7 [ Add 2x to both sides. ]

x² - 2x + 2x + 3 = -2x + 2x + 7

⇒ x² + 3 = 7 [ Subtract 3 from both sides. ]

x² + 3 - 3 = 7 - 3

⇒ x² = 4 [ Take the square root of both sides. ]

√x² = √4

x = ± 2

⇒ x = -2, x = 2

<u>Step 3:</u> Solve for y.

<em>Substitute the found x-values into one of the given equations.</em>

y = -2x + 7 ⇒ y = -2(-2) + 7 ⇒ y = 4 + 7 ⇒ y = 11

y = -2x + 7 ⇒ y = -2(2) + 7 ⇒ y = -4 + 7 ⇒ y = 3

The solutions to the system of equations are: (-2, 11) and (2, 3).

Learn more about system of equations here:

brainly.com/question/26094713

brainly.com/question/27850666

5 0
2 years ago
Read 2 more answers
Other questions:
  • (3/10+4/10) + 6/10 Use the properties and mental math to find the sum. Write your answer in the simplest form.
    13·1 answer
  • Another question. Help is very much appreciated!<br><br> Thanks!<br><br> (See attachment)
    5·2 answers
  • 50% of babies are born female. Olive wants to find the probability that 20 or more of the 50 babies born today were female. Use
    9·2 answers
  • What is the area of the triangle? Last one I swear to god! :)
    9·2 answers
  • Rounded to the nearest whole number, what is the approximate volume of the cage? Use π = 3.14.
    13·1 answer
  • At a rugby match,the ratio of children to adults us 2:3. there are 80 children in the crowd. each adult ticket costs £8. each ch
    6·1 answer
  • How do I simplify
    13·1 answer
  • ??please help me solve​
    6·1 answer
  • Jaxx come a talk to me
    13·1 answer
  • Write the equation of the line that passes through the points (8,-1) and (2,-5) in standard form, given that the point-slope for
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!