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
Goryan [66]
3 years ago
12

when 8 is subtracted from a certain number and the result is multiplied by 3 and the answer is 21 what is the original number

Mathematics
1 answer:
Maksim231197 [3]3 years ago
8 0

Step-by-step explanation:

The Real Answer Is 63

Maybe Positive Or Negative

You might be interested in
What is the 32nd term of 311, 305, 299
nata0808 [166]

Answer:

503

Step-by-step explanation:

For an arithmetic sequence, the n-th term is found by

a_n = a_1 + (n - 1)d

To find d (the common difference) we can simply subtract one of the terms by the last, for example:

d = 299 - 305 \\d = -6 \\

The common difference must be the same throughout the entire sequence, so we can do it once more just to be sure:

d = 305 - 311\\d = -6

We also have to know that a_1 stands for the first term of the sequence, which in this case is 311.

Now that we know this, let's find the 32nd term

a_{32} = 311 + (32 - 1)-6\\a_{32} = 311 + 192\\a_{32} = 503

Good luck!

4 0
3 years ago
Read 2 more answers
On the first day of the year, you have $700 in your bank account. You spend $35 per week. Your friend starts the year with $450
Alex_Xolod [135]

Answer is 5 weeks....

xoxo -Ella

7 0
3 years ago
HELP PLEASE!! Will mark brainliest to correct answer
swat32

Answer:

45

Step-by-step explanation:

KL- because triangle is a isosceles

(base angles are congruent)

8 0
2 years ago
math question: i write 17 text messages to friends each week for x weeks in a row. write an expression for total members
8090 [49]

Answer:

17x = y

Step-by-step explanation:

Since we know that you write 17 text messages a week. 17 will be our constant number, now then after you said for x weeks.

Meaning that x would be our variable cause we can put an input of any number, then put it next to 17 because that is how many times you text a week.

17x = y

17 (how many times you text per week) x (how many weeks) = y (texts in total)

6 0
3 years ago
The first step in the process for factoring the trinomial x2-3x - 40
Alexxx [7]
We need two numbers that when multiplied will give you -40 and when added will give you -3:
(x+5) (x-8) this is your answer. And you want to know the process Here it goes. And attached is a chart I made you so you can visually see what this process is telling you:
1) identify a,b, and c in the trinomial ax^2 + bx+c (in your case it's 1x^2-3x-40= x^2-3x-40)
2) write down all factor pairs of c (numbers that multiplied produce -40)
3) identify which factor pair from the previous step sums up to b
4) Substitute factor pairs into two binomials
3 0
3 years ago
Other questions:
  • Solve for Y<br> py+qy= -4y+8
    7·1 answer
  • What is 2/6 equal to
    8·2 answers
  • Solve for y in terms of x: 3y-2x=7
    13·2 answers
  • I understood the whole problem but why they add 5 under square root?<br>please help me
    10·1 answer
  • Find the slope of line containing the given points. (3,-8),(1,4)​
    8·2 answers
  • When it comes to finding the common denominator, do I add or subtract it to the denominator ​
    7·2 answers
  • Express the following in exponential notation:<br> (-13) X (-13).<br> 35 times
    11·1 answer
  • Prove that A is idempotent if and only if AT is idempotent. Getting Started: The phrase "if and only if" means that you have to
    5·1 answer
  • The forecast calls for a 10% chance of rain on Monday. It’s _______ that it will rain on Monday.
    11·1 answer
  • The zeros of a parabola are –4 and 2, and (6, 10) is a point on the graph. Which equation can be solved to determine the value o
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!