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
MA_775_DIABLO [31]
2 years ago
5

A certain positive number is multiplied by 4, and then the result is subtracted from the original number. The result is 21 less

than 0. What is the number?
Mathematics
2 answers:
tatiyna2 years ago
7 0

Answer:

The answer is 7

Step-by-step explanation:

Let the positive number x

Then multiply by 4 : 4x

Subtracted by the number which is x-4x

Then we have x-4x=-21

: -3x=-21

X= -21/-3

X= 7

stira [4]2 years ago
4 0

Answer:

The number is 7

Step-by-step explanation:

certain positive number: x

x is multipled by 4:

4x

result of this is subtracted from the original number:

so original number minus 4x,

x - 4x

the result is 21 less than 0, this means negative 21

x - 4x = 0 - 21 = -21

do algebra:

-3x = -21

multiply both sides by -1

3x = 21

divide both sides by 3

x=7

(certain positive number: x) is equal to 7

You might be interested in
A box is filled with green marbles, red marbles, and blue marbles. The ratio of red marbles to green marbles is 3:1. The ratio o
V125BC [204]

Answer:

The answer is 3:2 look at the explanation

Step-by-step explanation:

6 0
2 years ago
Graph the following equations on graph paper or in your calculator.
KIM [24]
The third answer choice.
6 0
2 years ago
What is 62 1/2% as a decimal?
babymother [125]

Answer:

62.50 or 0.625

Step-by-step explanation:

7 0
2 years ago
Solve the system of linear equations. Check your solution. y=2x-2 <br> y=2x+9
natulia [17]
2X-2=2X+9
Add 2

2X=2X+11
Subract 2X
0= 11

This has no solution to this problem
8 0
3 years ago
The difference between the length and the width of a rectangle is 5 centimeters. What id the length (the longer side) of the rec
Georgia [21]

Answer:

29

Step-by-step explanation:

106=2(x+x+5)

53=2x+5

48=2x

24=x

24+5=29

3 0
3 years ago
Other questions:
  • What are (a) the x component and (b) the y component of a vector in the xy plane if its direction is 250° counterclockwise from
    6·1 answer
  • . An insurance company offer contracts for a certain peril. In a contract period, which is 6 months, the following payoffs can o
    7·1 answer
  • 49637420/36<br> ayúdenme con esta división si es posible con fotos
    13·1 answer
  • If a car travel 96 km on 8 liters of gas, how much gas will be used if the car travels a distance of 120km?
    6·1 answer
  • PLEASE HELP!!
    6·1 answer
  • Picture attached below<br><br> A. 1/3<br> B. 5/13<br> C. 4/5<br> D. 12/13
    10·1 answer
  • A square pyramid, with a base 5 meters in length and a height of 5 meters, has a volume of 125 cubic meters. True or False?​
    7·2 answers
  • AaBbCc x AaBbCc (use for all 3 questions) 1. What is the probability that this individual will: AABBcc 2. What is the probabilit
    10·1 answer
  • Trig Functions Quiz, Help please
    14·1 answer
  • kadeem started an exercise program.he ran 25 minutes each day for 7 days.how much time had he spent running at the end of 7 days
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!