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
Crazy boy [7]
2 years ago
13

The sum of two numbers is 17, and their difference is 29. What are the two numbers?

Mathematics
2 answers:
serious [3.7K]2 years ago
6 0
X + y = 17
x - y = 29

x = 17 - y
x - y = 29

x = 17 - y
17 - y - y = 29

x = 17 - y
17 - 2y = 29

x = 17 - y 
- 2y = 29 - 17

x = 17 - y
-2y = 12

x = 17 - y 
y = -6

x = 17 - (-6)
y = -6

x = 17 + 6
y = -6

x = 23
y = -6

leva [86]2 years ago
3 0
X + y = 17
x - y = 29

We're going to do substitution.

1. We first put one of these in terms of x or y. Either are fine, but I'm going to do x, and any of the equations are fine, but I'm going to do the first one.

x + y = 17 >> x = -y + 17

2. We plug in this x-value into the other equation, and solve for the variable.

(-y+17) - y = 29
-2y + 17 = 29
-2y = 12
y = -6

3. We now plug the variable we found (y in this case) into the first equation to find the other variable (x).

x + -6 = 17 >> x = 23



In conclusion, the two numbers are 23 and -6.
You might be interested in
Suppose the restaurant’s description of the weights of its hamburgers is true. The dotplot below
zepelin [54]

Answer:

Step-by-step explanation:

It would be unusual because there are only one 7.6 samples out of a total of 100 samples.

4 0
2 years ago
I need the answers to both. Will give brainiest!
miskamm [114]

Answer:

1. Number 1 and 2 and 4 is a function, 2. number 1 is a function

Step-by-step explanation:

1)To know if it's a function or not run vertical lines through multiple places of the graph. If it is a function every single time you do the vertical line test it should only go over the line once. If you do the vertical line test on 3 you will see that it went over the line on the graph, so we know not a function. Graphs 1, 2, and 4m however, are different, when you do the vertical line test on those graphs it only goes over them once.

2) Choice (1) is a function because when drawing vertical lines through the graph it only goes over one.

Choice (2) is not a function because when drawing vertical lines through the graph it covers two points on the graph.

Choice (3) is not a function because when drawing vertical lines through the graph it goes over multiple points.

Choice (4) is not a function because when a vertical line is drawn, it goes over more than one point on the graph.

The vertical test is a way to determine if it is a function.

When looking at a table functions are one-to-one and many-to-one

Non-functions are one-to-many and many-to-many

Hoped this helped you : )

5 0
3 years ago
Perform the following operation, and report the answer to the correct number of significant figures. 3.47 x 6.7
kobusy [5.1K]

Answer:

23

Step-by-step explanation:

3.47 = 3 sig. figs.

6.7 = 2 sig. figs.

Since these two numbers are being multiplied, you would round to the smallest number of sig. figs. of the two. In this case, it would be 2 significant figures.

3.47 * 6.7 = 23.249 (dont forget to round to 2 sig. figs. ) --> 23

6 0
2 years ago
Write an expression for a number that is 5 times greater than 2
ElenaW [278]

Answer:

x = 5x > 2

or just 5x > 2 ya its that

Step-by-step explanation:

4 0
3 years ago
Please help ASAP! I will mark Brainliest! Please answer CORRECTLY! No guessing! Show your work!
Margaret [11]

Answer:

b

Step-by-step explanation:

you should use mathaway, it's really useful

4 0
3 years ago
Other questions:
  • Evaluate S5 for 300 + 150 + 75 + … and select the correct answer below. 18.75 93.75 581.25 145.3125
    12·2 answers
  • Whats the reciprocal<br> of 23
    13·2 answers
  • 2x+y=3 passes from origin. is this statement true or false
    11·2 answers
  • What does a and b equals in the quadrilateral
    13·2 answers
  • The measure of an angle is 114º. Calculate the measure of its supplementary angle.
    11·1 answer
  • there are 84 students in the 8th grade. if they are split evenly into 6 groups how many students will be in each group
    13·2 answers
  • 80 is 40% of what number?<br> A) 200 B) 32 C) 20 D) 112
    10·2 answers
  • Give the factors for the numerator [n] and denominator [d] after reducing.
    8·1 answer
  • If two angles are complements, then they are both acute. Which is the hypothesis?
    7·1 answer
  • What is the volume, in cubic meters, of a cylinder with a height of 9 meters
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!