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
ICE Princess25 [194]
3 years ago
10

One number is 3 times more than another number. Their sum is 20. What are the two numbers?

Mathematics
2 answers:
Elena L [17]3 years ago
7 0

n+3n=20

4n=20

Divide both sides by 4

n=5

5+(3*5)=20

5+15=20

NUMBERS ARE  5 and 15

Georgia [21]3 years ago
6 0
3x=y
X+Y=20
5=x and 15=y are the answer. You can use elimination or substitution or guess and check!
You might be interested in
Would really appreciate it if someone could help!! Have been stuck on the question alll day !
aksik [14]
The answer would be:
ABD=78.8
DBC=61.1
3 0
3 years ago
What is the slope of the line that contains the points (4, 3) and (2, 7)?​
zubka84 [21]

Answer:

-2

Step-by-step explanation:

given 2 points on a line (x1, yx) and (x2,y2)

the formula for slope, m  = (y2-y1) / (x2-x1)

in this case,

x1 = 4, y1 = 3, x2 = 2, y2 = 7

Hence,

m  = (7-3) / (2-4) = 4 / -2 = -2

8 0
3 years ago
Which best describes the triangle or triangles, if any, that can be formed with sides
tiny-mole [99]

Answer:

no triangle

3 0
3 years ago
HELP THIS IS DUE SOON!<br><br> find the error!
Rudik [331]

Answer:

Step 1

Step-by-step explanation:

they were supposed to multiply 2x by 4 and -1 by 4 but they only multiplied 2x by 4.

3 0
2 years ago
Read 2 more answers
A computer online service charges one hourly rate for regular use but a higher hourly rate for designated "premium" areas. One c
N76 [4]

Answer: the service charge per hour for premium services is $5.5

the service charge per hour for regular services is $3

Step-by-step explanation:

Let x represent the service charge per hour for premium services.

Let y represent the service charge per hour for regular services.

One customer was charged $38 after spending 2 h in premium areas and 9 regular hours. It means that

2x + 9y = 38- - - - - - - - - - - 1

Another customer spent 3 h in premium areas and 6 regular hours and was charged $34.50. It means that

3x + 6y = 34.5- - - - - - - - - - -2

We would eliminate x by multiplying equation 1 by 3 and equation 2 by 2. It becomes

6x + 27y = 114

6x + 12y = 69

Subtracting, it becomes

15y = 45

y = 45/15

y = 3

Substituting y = 3 into equation 1, it becomes

2x + 9 × 3 = 38

2x + 27 = 38

2x = 38 - 27 = 11

x = 11/2 = 5.5

8 0
3 years ago
Other questions:
  • If the perimeter of a square is 3 feet how many inches long is each side
    8·2 answers
  • A single , six sided die is rolled . find the probability of rolling an odd number less than 4
    15·1 answer
  • This is the question:
    14·1 answer
  • 4/3 x −4 = 5 + x Help me please!
    11·2 answers
  • Helen designs a rectangle with an area of 225 square units. her rectangle is the largest rectangle( that is the rectangle with l
    10·1 answer
  • There are 12 pieces of fruit in a bowl and 3 of them are apples. What percentage of the pieces of fruit in the bowl are apples?
    6·1 answer
  • John got a 20% discount at a sale. He got a new shirt for $12. What was the original price of the shirt?
    13·1 answer
  • WILL MARK BRAINLIEST
    11·1 answer
  • Which of the following equations has exactly one solution?
    12·2 answers
  • The temperature at 10:00 am was -3 degrees Fahrenheit and increased 2.25 degrees Fahrenheit each hour for the next 5 hours. What
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!