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
gulaghasi [49]
3 years ago
15

25 less than 3 times a number is 38. What is the number?

Mathematics
1 answer:
Nookie1986 [14]3 years ago
7 0

You would set up the problem like this: 3n-25=38

To solve for n:

3n-25=38

   +25 +25          (Add 25 to both sides)

3n=63

/3   /3                  (Divide by 3 on both sides)

n=21

The answer is 21.

You might be interested in
A tennis player hits a serve that cannot be returned 45 percent of time. out of 300 serves, how many can you predict will not be
Aleks [24]
135 ; If you are allowed to use a calculator to determine percents you can do 300 × 45% = and it gives you your answer.
8 0
3 years ago
Read 2 more answers
PLEASE someone help its due tonight im almost done
marusya05 [52]
<h3>Answers:</h3>
  • 48 seconds
  • 3624 feet

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

Explanation:

x = number of seconds that elapse

y = altitude (aka height) of the plane

The equation for plane A is

y = 20.25x+2652

because it starts off at 2652 ft in the air, and then adds on 20.25 feet per second which is what the 20.25x describes

The equation for plane B is

y = 75.5x

The y intercept is zero because plane B starts on the ground, aka height 0.

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

The system of equations is

\begin{cases}y = 20.25x+2652\\y = 75.5x\end{cases}

If we want to know when they'll reach the same height (y), then we can set the two right hand sides equal to each other and solve for x.

75.5x = 20.25x+2652

75.5x-20.25x = 2652

55.25x = 2652

x = (2652)/(55.25)

x = 48

The two planes reach the same altitude at exactly <u>48 seconds</u>

That altitude is <u>3624 feet</u> because

  • y = 20.25*x + 2652 = 20.25*48+2652 = 3624
  • y = 75.5*x = 75.5*48 = 3624

Notice I plugged x = 48 into each equation and I got the same y value of y = 3624. This helps confirm the answers.

7 0
2 years ago
If the scale on a map is inches/feet =2/10, how would the following lengths be represented?
Alex787 [66]
The answer is B 30 feet
7 0
3 years ago
Select the correct answer
Tasya [4]
The correct answer is the 5th option (one before the last one).
7 0
3 years ago
Which of the following represents a focus of the equation y2 + 4 = 4y +x
Alecsey [184]

Answer:

what are the listed followings ?

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Homeroom 101 and homeroom 102 share a hallway bulletin board. If homeroom 101 uses 3/5 of their half to display artwork, what fr
    10·1 answer
  • Homer and bart plan to buy one computer for 499.00 strictly for gaming purposes. Games cost 49.99 each. define each variable and
    11·2 answers
  • What's the equation for q and r
    12·1 answer
  • Debbie ate 1/8 of a large brownie. Julian ate 1/2 of a small brownie. Julian says, "I ate more brownies than you because 1/2&gt;
    13·2 answers
  • Please help.<br> Algebra.
    14·2 answers
  • The number of players on Antonio’s basketball team increased by 20% from 2017 to 2018. If there were
    11·1 answer
  • Which of these relations is a function?
    12·1 answer
  • Is 3a + 3B equivalent to 3 (a + 2B) <br>true or false​
    14·2 answers
  • (-2,-5) on a graph. I really need to know.
    5·1 answer
  • A water tanklalready contains
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!