One number is 3 less than twice another. If their sum is 39, find the numbers.
Which of the following systems of equations represents the word problem?

A) y=2x-3 and y=x+39
B) y=2x-3 and x+y=39
C) y=2(x-3) and x+y=39

Answers

Answer 1
Based on the given information, we know that x+y=39

Let "one number" be y
Let the other number be x
This would mean y=2x-3
2x="two times the other number"
-3= "three less"

The correct answer:
B) y=2x-3 and x+y=39
Answer 2
the answer to that is

B.y=2x-3 and x+y=39

Related Questions

which polygon does NOT belong with the other three?

A. parallelogram
B. rectangle
C. rhombus
D. Pentagon

Answers

D) Pentagon, it is the only one which doesn't have 4 sides/corners, but 5 instead, and therefore also has no parallel sides

Answer:

The polygon that does NOT belong with the other three is a pentagon.

Step-by-step explanation:

A polygon is a 2 D shape formed with straight lines. Like - triangles, quadrilaterals, pentagons, hexagons etc.

Here in the given choices, parallelogram , rectangle and rhombus all are four sided polygons and has parallel sides.

Only pentagon has 5 sides with no parallel sides.

Hence, the polygon that does NOT belong with the other three is a pentagon.

What is the domain of the function on the graph

Answers

all real numbers greater than or equal to -3

Answer:

The correct option is all real numbers greater than or equal to -3.

Step-by-step explanation:

The concept of domain of a function refers to all the points in the x axis for which the function is defined. In the graph as you can see the function starts in x = -3 (includes that point) and growths towards positive values of x, to +∞. So its domain is [-3, ∞) or {R, x≥ -3} in other words "all real numbers greater than or equal to -3."

What are the domain and range of the function

Answers

Answer:

The domain is the all possible value of x which give the real value of y whereas Range is the all possible value of y after putting the values of x.

For example: We have function: f(x) = x²

Here Domain = All Real Numbers = (-∞, ∞) {∵ For every value of x f(x) give real value)

and, Range = All positive real number = (0, ∞) {∵ f(x) is giving only positive value no matter what the value of x is}

Which line segment is parallel to plane FGKJ?

Answers

not enough information. where's the  graph or the image to see where line FGKJ is placed?

The cost of a ticket to ride a roller coaster at the fair is $2. there are n people in a group who want to go on the ride. write an expression that describes the total amount of money the group will need to ride this roller coaster.

Answers

n # of people   times   $2 per ticket
       
n(2) 

The length of the boston marathon is 138,435 ft. each stride, or step, by a particular runner is 3ft. long. does the number of strides the runner takes fit evenly into the length of the race? explain.

Answers

Yes! If you divide 138,435 by 3, the number of strides the runner takes fit evenly into the length of the race. Therefore the answer is 46,145 ft.

Yes 138,435 can be divided by 3 it equals to 46,145

Write the identity of the missing nucleus for the following nuclear decay reaction: 232 90Th→228 88Ra+?

Answers

Final answer:

The missing nucleus in the nuclear decay reaction of Thorium-232 into Radium-228 is an alpha particle, or Helium-4.

Explanation:

The question pertains to a nuclear decay reaction where Thorium-232 decays into Radium-228 and a missing nucleus. The missing nucleus can be determined by subtracting the atomic mass and atomic number of the daughter nucleus (Radium-228 with atomic number 88) from the parent nucleus (Thorium-232 with atomic number 90). This yields an alpha particle (He), which has an atomic mass of 4 and atomic number of 2. Here's how it works:

232 90Th (parent nucleus) → 228 88Ra (daughter nucleus) + 4 2He (missing nucleus).

Thus, the missing nucleus is an alpha particle (Helium-4).

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What is the simplified form of the left side of the following equation?

2x-4+5x=8

Select the correct answer below.

A.2x+1

B.3x-4

C.5x-2

D.7x-4

Answers

Answer:

  D.  7x -4

Step-by-step explanation:

You want the simplified form of the expression 2x-4+5x.

Like terms

An expression is simplified by eliminating parentheses and combining like terms. Here, there are no parentheses, but there are like terms: 2x and 5x. Combining them gives ...

  2x -4 +5x

  = (2 +5)x -4

  = 7x -4 . . . . . . . . . matches choice D

20 points!!!! What number needs to be added to both sides of the equation in order to complete the square?
x²+16x=18

( x² + 16 +_____= 18+______

Answers

you would add 16 to both sides 

(x^2 + 16 + 8^2 = 18 + 8^2

81 1/4 is equal to 2. True or False

Answers

False.
81 1/4 is much greater than 2.

The equation of a linear function in point-slope form is y – y1 = m(x – x1). Harold correctly wrote the equation y = 3(x – 7) using a point and the slope. Which point did Harold use?

Answers

Harold used
x1 = 7
and y1 = 0
the points are (7,0)

Answer: equation of a linear function in point-slope form

Step-by-step explanation:

Given : The equation of a linear function in point-slope form passing through point [tex](x_1,y_1)[/tex] is

[tex]y -y_1 = m(x -x_1)[/tex]

The equation written by Harold correctly

[tex]y = 3(x - 7)[/tex]

It can be written as:[tex]y-0 = 3(x - 7)[/tex]

When we compare to the equation of a linear function in point-slope form, we get [tex]y_1=0,\ x_1=7[/tex]

Hence, the point used by Harold = [tex](x_1,y_1)=(7,0)[/tex]

(a + b)2 = 1a^2 + 2ab + 1b^2
(a + b)^3 = 1a^3 + 3a^2b + 3ab^2 + 1b^3

How are binomial expansions related to Pascal’s triangle?

Answers

Consider the binomial [tex]\displaystyle{ (a+b)^\displaystyle{n[/tex],

where n=0, 1, 2, 3, ...

For example 

[tex]\displaystyle{ (a+b)^0=1[/tex]

[tex]\displaystyle{(a+b)^1=1a+1b[/tex]

[tex]\displaystyle{(a+b)^2=1a^2+2ab+1b^2[/tex]

[tex]\displaystyle{ (a + b)^3 = 1a^3 + 3a^2b + 3ab^2 + 1b^3[/tex]
...
...


Consider the Pascal's triangle, as shown in the picture, where the very first row is denoted by row 0, the second by row 1, the third by row 2 and so on...


We notice that the coefficients of the expansion of [tex](a+b)^n[/tex], are the entries in the [tex]n^{th}[/tex] row of Pascal's triangle.


Answer:

The coefficients of the terms come from rows of the triangle.

If the exponent is n, look at the entries in row n.

The triangles are similar
What is the value of x?
Enter your answer in the box.

x=

The triangles are similar
What is the value of x?
Enter your answer in the box.

x=

What is AE ?
Enter your answer in the box.


Hunter designs two flags for his adventure club.
What is the length of the base, x, of the larger flag?
Enter your answer, as a decimal, in the box.

A man throws a basketball from 30 in. above the ground. The basketball bounces off the floor and a boy catches it. The distance the ball traveled from the man to the floor is 45 in., and the distance the ball traveled from the floor to the boy is 40 in. The angles formed from by the basketball's path are congruent.

What is the distance, x, from the floor that the boy caught the ball?
Enter your answer, as a decimal, in the box. Round your answer to the nearest hundredth.

Answers

Final answer:

The value of x is AB/3, which is equal to KD/3.

Explanation:

In the given scenario, we have two similar triangles, HKD and KFD. Since they are similar, their corresponding sides are proportional. In triangle HKD, the width KD is equal to x, and in triangle KFD, the base KF is equal to 3x (proportional to AB). Therefore, the value of x is AB/3, which is equal to KD/3.

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Answer: x=16

Step-by-step explanation:

In the processes of the dilation each number displayed in the first triangle is multiplied by four in order for the second figure to be created. Therefore you would also multiple 4 x 4 in order to get 16.

One theme from "The Yellow Wallpaper" is that women played a lesser role in marriage during the 19th century. Which line from the passage best supports this theme?

Answers

Plz put the passage and I can figure this one out easily! I'm good at these kind of things

Answer: Answer is A for apex ; ` And I know John would think it absurd. But I MUST say what I feel and think in some way - it is such a relief! ´


Step-by-step explanation:


From a point level with and 1000ft away from the base of the washington monument, the angle of elevation to the top of the momument is 29 degrees. find the height of the monument

Answers

h = 1000 tan 29.5 i think.

Determine the dimensions of the rectangle that requires a minimum amount of fence.

Answers

It doesn't matter what the dimensions are.  the Perimeter will be the same.

you learn from your science teacher that the water expands when you freeze it. the next time you freeze your water bottle,you will leave room for the water to expand so that the bottle dose not crack.

what kinda reasoning did you use

Answers

I used inductive reasoning to come to the conclusion for my hypothesis based on what I learned from my science teacher. Inductive reason is a method logic to which I apply to my hypothesis so that it makes sense, it can be used to forecast and predict the outcome of a specific assumption that I assume from the basis of my claim

If k= am + 3mx, Express the value of m in terms of a, k and x?

Answers

k=am+3mx
factorise m 
k= m(a+3x)
divide by a+3x

k= am + 3 mx
Factorise m
k= m (a+3x)
Divide by a + 3x

What are the new coordinates of the point (-3, 7) after it has been rotated 90° counterclockwise about the origin?

Answers

The y coord becomes the negative x coord and the x coord becomes the y coord. So (-3,7) becomes (-7,-3).

Study the Proof: Give the reasons for the missing reason. List the number and then state the reason

Answers

Reason
1. Given 
2. Segment Addition Postulate
3. Add BC on the both sides

f f(x) = x2 – 25 and g(x) = x – 5, what is the domain of (F/g)(x)

Answers

(f/g)(x)=((x-5)(x+5))/(x-5)=x+5 & Domain=R

[tex] \sqrt{ \frac{3}{16} } [/tex]
Rational or irrational?

Answers

Hello!
When you have a non-exact root (irrational number)

[tex] \sqrt{ \frac{3}{16} } \to \frac{ \sqrt{3} }{ \sqrt{16} } \to \boxed{\boxed{\frac{ \sqrt{3} }{4} }}\Longleftarrow(irrational\:number)\end{array}}\qquad\quad\checkmark[/tex]

What is the probability that a point chosen at random on the grid will lie in the unshaded region?
a. 5/8
b. 2/5
c. 3/8
d. 3/5?

Answers

It is A 5/8 There you go

Two cars leave the origin; one goes north at 45 mph and the other goes south at 30 mph. after how many hours will they be 400 miles apart?

Answers

400 = 45x + 30x
400 = 75x
5.333 = x

Lets test

45mph for 5.333 hours = 240 miles
30mph for 5.333 hours = 160 miles
240 + 160 = 400 miles apart.

After selling a dozen copies of the daily newspaper a newsstand had fewer than 75 copies left how many copies did the newsstand have at the beginning of the day

Answers

The daily newspaper stand had began with 87 copies.
The stand began with 87 copies

A particular investment account offers an interest rate of 8% each year. An investor puts $3,500 into the account. For tax purposes, he wants to determine the number of years, t, for which the account will have less than $6,000. Write an inequality to represent this situation, and use it to determine the number of years for which the account will have less than $6,000.

Answers

Can you give me some answr choices please.

Final answer:

The compound interest inequality for the investment account is 3500(1 + 0.08)^t < 6000. Solving this, we find that the account will have less than $6,000 for approximately 6 years.

Explanation:

To solve this problem, we will use the formula for compound interest which is [tex]A = P(1 + r)^t,[/tex] where:

A is the future value of the investment/loan, including interestP is the principal investment amount ($3,500 in this case)r is the annual interest rate (decimal)t is the number of years the money is invested or borrowed for

We are trying to find the number of years, t, when the account will have less than $6,000, at an annual interest rate of 8%, i.e., r = 0.08.

The inequality will be:

[tex]3500(1 + 0.08)^t < 6000[/tex]

To solve for t, we first divide both sides by 3,500:

[tex](1 + 0.08)^t[/tex]< ≈ 1.7143

Now, take the natural logarithm of both sides:

[tex]ln((1 + 0.08)^t) < ln( 1.7143)[/tex]

t · ln(1.08) < ln(≈ 1.7143)

Divide both sides by ln(1.08) to isolate t and calculate:

t < ≈ ln(≈ 1.7143) / ln(1.08) < ≈ 6.6

Therefore, the investment account will have less than $6,000 for approximately 6 years.

Which lines or segments are parallel? Justify your answer.

Answers

Answer: PS and QT are parallel.

Explanation:
Angles on equivalent sides of parallel lines created by a traversal are equal.
The traversal PQ creates equal angles at P and Q on equivalent sides of line segments PQ and QT.

How do you find what a variable means?

Answers

You have to answer the problem and follow the clues that is shown on you expression

On average, a shooter can hit his target one time in four. if he fires 4 shots in a row, what is the probability that he will hit his target?

Answers

Well.... the man has a 1/4 chance of hitting his target... You kind of answered your own question when you said: "a shooter can hit his target one time in four"          Good luck on whatever you are doing! :)

Lesson 1: identify pairs of lines and angles draw two lines intersected by a transversal. label corresponding angles ∠1 and ∠2. label alternate interior angles ∠3 and ∠4. label alternate exterior angles ∠5 and ∠6. label consecutive interior angles ∠7 and ∠8. label vertical angles ∠9 and ∠10. answers

Answers

each number goes by tge side ??
draw 2 lines horizontally then one angled line through them and go from bottom to top labeling the answer
 
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