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
VladimirAG [237]
3 years ago
13

One number is seven more than three times another number. If the sum of the numbers is 15, find the numbers.

Mathematics
1 answer:
dimulka [17.4K]3 years ago
4 0

Answer:

2 and 13

Step-by-step explanation:

We can use systems of equations here to find both the numbers. Let's assume one of the numbers is x and the other is y.

We know that these numbers add up to 15, so x + y = 15.

We also know that one of these numbers is 7 more than 3 times the other, so x = 3y + 7.

We can now substitute the equation x = 3y + 7 into x + y = 15.

(3y + 7) + y = 15

Combine like terms:

4y + 7 = 15

Subtract 7 from both sides:

4y = 8

Divide both sides by 4:

y = 2.

Now that we know the value of y, we can substitute it inside an equation to find x. Let's substitute it inside x + y = 15.

x + 2 = 15\\\\x = 15-2\\\\x = 13

So the two numbers are 2 and 13.

Hope this helped!

You might be interested in
All tubes of watercolor paint at an art supply store have the the same price. An artist has a coupon for $0.50 off each tube of
BlackZzzverrR [31]

Let us assume the regular price of each tube of paint = r.

0.50 off each tube.

New price of each tube = r - 0.50.

She buy 6 tubes.

Total price of 6 tubes = 6×(r-0.50).

We are given total price = $84.30 .

Therefore, we can setup an equation

6×(r-0.50) = 84.30.

Distributing 6 over (r-0.50), we get

6r - 3.0 = 84.30

Adding 3.0 on both sides, we get

6r - 3.0+3.0 = 84.30+3.0

6r = 87.30

Dividing both sides by 6, we get

6r/6 = 87.30/6

r = 14.55

<h3>Therefore, required equation is 6(r-0.50) = 84.30 and the regular price of each tube of paint is $14.55.</h3>
5 0
3 years ago
Which set of side lengths form a right triangle?
sergiy2304 [10]
It is the last numbers I'm positive
6 0
3 years ago
More work that was due yesterday help?
Troyanec [42]

So what is the question?

8 0
3 years ago
Read 2 more answers
Simplify 1/8 - 1/9 x+3/4-2/3x
Afina-wow [57]

Answer:

7/8 - 7x/9

Step-by-step explanation:

;)

8 0
3 years ago
Jim has 12 colored papers 8 bows 2 different colored markers and 2 envelopes How many different cards can Jim make
ikadub [295]
384 because 12*8=96*2=192*2=384
8 0
3 years ago
Other questions:
  • A set of numbers is transformed by taking the log base 10 of each number. The mean of the transformed data is 1.65. What is the
    6·1 answer
  • 45 children attend preschool. The number of two-year-olds is one half the number of three-year-olds. The number of four-year-old
    11·1 answer
  • a 16-ounce bottle of spring water is $1.76. a 20-ounce bottle of fresh water is $2.40. which statement about the unit prices is
    8·2 answers
  • A company’s sales increased 17% this year, to $8267. What were their sales last year?
    13·1 answer
  • 180 product of a prime factor using indices
    13·2 answers
  • Please hurry! How is the area of a rectangle related to the area of a triangle?
    12·1 answer
  • The shortest living domestic cat measures 133.4 millimeters. How many centimeters tall is the cat?
    11·1 answer
  • Jeremy bought a new pair of jeans. The jeans
    15·2 answers
  • What is the domain of f(x)? <br> What is the domain of g(x)?
    5·1 answer
  • 5/8 divided by 15/32
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!