How many solutions does the system have?
5y = 15x - 40
y = 3x -8
A. Infinitely many solutions
B. No solutions
C. Exactly one solution

Answers

Answer 1

Answer:

A; infinitely many solutions

Step-by-step explanation:

first, let's simplify the first equation to make it simpler.

divide both sides by 5

y=3x-8

new system

y=3x-8

y=3x-8

as you can see, they are the same.

not mandatory but useful!⬇⬇⬇⬇

just to be more clear, let's substitute them. since they're both already in y=, we can make them both set to each other.

3x-8=3x-8

add 8 to both sides; subtract 3x from one side

0=0

the answer is A, Infinitely many solutions.

hope this helped <3333333


Related Questions

pls help thank you!!!

Answers

Answer:

6 , 3 should be the midpoint

Step-by-step explanation:

Last year 500 people attended a concert this year 900 people attended what was the percent increase in attendance from last year to this year

Answers

Answer:

80

Step-by-step explanation:

500 to 900? = 80.

Please help!!! Confused.

Answers

Answer:

[tex] {x}^{2} + 11x + 30[/tex]

Step-by-step explanation:

Area is length x width

The length is

[tex](x + 6)[/tex]

The width is

[tex](x + 5)[/tex]

Multiply both using FOIL Method

[tex](x + 6)(x + 5)[/tex]

[tex] {x}^{2} [/tex]

[tex]6 \times x = 6x[/tex]

[tex]5 \times x = 5x[/tex]

[tex]6 \times 5 = 30[/tex]

Write in standform form

[tex] {x}^{2} + 6x + 5x + 30[/tex]

[tex] {x}^{2} + 11x + 30[/tex]

Shaughn has 36 bottles of soda.
Each bottle holds 20 ounces of soda.
Shaughn will use 15-ounce paper cups to serve the soda.
How many paper cups will he need to hold all of the

Answers

Answer:

I think u left out the word sorry dude cant help u

anyone know this equation ????

Answers

Answer:

c (-2,1)

Step-by-step explanation:

use y= and substitute into 2nd equation which will give you x. Then take x value and substitute into first equation which will give you y value and theres your answer    

Andrea is selling scooters. This equation shows how Andrea's revenue () depends on the number of scooters sold (x). y = 4x How much revenue does Andrea get for each scooter?​

Answers

Answer:

Andrea get for each scooter?​

Step-by-step explanation:

275^2 please answer this question​

Answers

Answer:

75,625

Step-by-step explanation:

A group of mothers answered yes or no to the survey questions below.

Do you have 3 or more children?

Do you own a minivan?
The same mothers responded to both questions. The results are shown in the first table.

Of the 43 mothers with 3 or more children 26 of them own a minivan.
Complete the two way frequency table to represent the correct mothers for each cell of the table.

Answers

Answer:

To draw a two way table for the own a mini van table as it says 26 own a minivan for people with 3 or more children is subtraction from the given full total 37;

37 - 26 = 11   and  finding two or more children is 51- ?= ?  see below ans 51- 11 = 40 for those that don't own a mini van.

Then its quick addition to find 40+17 = 57

See given answers in question already easy to answer in bold before doing the sums.

                             one or 2 children     |   3 or more children      Total

Do own a mini van                 11                     26                       =       37

Do not own a mini van         40                    17                          =      57

Total                                        51                    43                          =      94      

how many number from 1-100 are divisible by 3 or 4

Answers

12, 24, 36, 48, 60, 72, 84, and 96.

The diameter of a circle is 14 ft. Find its area to the nearest tenth.

Answers

Answer:

615.8

Step-by-step explanation:

A=πr2=π·142≈615.75216

Answer:

Solution given:.

diameter=14ft

radius [r]=14/2=7ft

Now

Area of circle =πr²=π×7²=154ft²

help.
step by step please
no links i will report :)

Answers

Answer: 2 1/13

Step-by-step explanation: keep change flip. keep 9/13 and then change, so you multiply 9/13x3/1 which is equal to 27/13 which is 2 1/3

x − 7y = 8 for x. and the choices are
A x = −7y + 8
B x = −7y − 8
C x = 7y − 8
D x = 7y + 8

Answers

C is the correct answer

Solve the system of equations and choose the correct answer from the list of options.

x + y = 1
y = x −5

Label the ordered pair as (x, y). (4 points)

a
(0, 0)

b
(3, −2)

c
(−2, 3)

d
(−3, 0)

Answers

answer:
b
(3, -2)

step-by-step explanation:
needs to be y = mx + b
x + y = 1
-x -x
y = -x + 1
y = x - 5 is already in form
using desmos
they intersect at (3, -2)

Answer:

b

Step-by-step explanation:

substitute y in x

x+x-5=1

2x=6

x=3

y=3-5

y= -2

Which set of side lengths could be used to form a
right triangle?
7.5 in., 18 in., 21.5 in.
7.5 in., 18 in., 19.5 in.
7.5 in., 19.5 in., 21.5 in.
18 in., 19.5 in., 21.5 in.

Answers

All sides of a right triangle are different lengths.

The shortest being the leg in which is opposite to the smallest angle on the standard right triangle (30 degrees). The side with the longest length is always the hypotenuse (point a-c).

Therefore, both answer a and b are eliminated considering two sides of the triangle have equivalent lengths.

Answer: C

You can use the Pythagorean theorem to check your answer (a^2+b^2=c^2)

Ilus
Translate algebraic words to symbols.
Half of R subtracted from y cubed
A. 1/2R - y3
B. y3 - R/2
C. R/2 - 3y
D. 3/y - R/2

Answers

Answer:

        [tex]\bold{B.\quad \ y^3-\dfrac R2}[/tex]

Step-by-step explanation:

"half of R" it is:   [tex]\dfrac R2[/tex]

"y cubed" it is:   [tex]y^3[/tex]

Therefore, half of R subtracted from y cubed is:  [tex]y^3-\dfrac R2[/tex]

Solve: -6 = b/18⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Answers

Answer:

b=-108

Step-by-step explanation:

answer:

-108 = b

step-by-step explanation:

-6 = b/18

do the inverse to get the variable by itselfwe will have to multiply 18 to both sides

(X18) -6 = b/18 (X18) — multiplying b/18 and 18 crosses out the 18's

-108 = b

what number is missing ? 54÷ ? =6​

Answers

Answer:

9

Step-by-step explanation:

9x6=54

Answer:

? = 9

Step-by-step explanation:

please help, will mark brainliest :)

Answers

Answer:

The answer to this question is the second choice.

Step-by-step explanation:

3. Mrs. Garcia's class sold bottles of lemonade for $1.36 each and Mr. Runner's class sold protein bars for $1.65 each. Together, the classes sold 79 items and earned $118.17 for their school​

Answers

Answer:

324.6

Step-by-step explanation:

because Together, the classes sold 79 items and earned $118.17 for their school​

Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.
I don't want links.
I don't want links.
I don't want links.

Answers

Answer:

(x+9)(x+10)

Step-by-step explanation:

9*10=90

9+10=19

Answer:

(x+9)(x+10)

Step-by-step explanation:

Explanation in Image,

Btw the links are Viruses, DO NOT DOWNLOAD ANYTHING FROM THEM

they are bots going around brainly trying to make people download viruses from them, I hate them too btw, I feel you.

What is this?

F(x) = (1/3)^x

Answers

Answer:

top right is the answer

Step-by-step explanation:

Devon ends up paying extra 28% in intrest, if the ps5 is 500 how much did he pay in intrest?

Answers

Answer:

780

Step-by-step explanation:

i think sorry if it is wrong

Marjorie paid $72.00 for 6 CD's. If the CD's are all the same price, what is the price of 1 CD? A) $12.00 B) $9.00 C) $8.00 D) $6.00

Answers

It’s 12$$ bc 72 divided by 6 is 12

Answer:

A

Step-by-step explanation:

CD's           Price

6     -------> $72.00

1      -------> x

[tex]x=\frac{72*1}{6}\\\\x=$12[/tex]

Gerard bought 100 feet of fence to make a pen for his sheep. He decided to build the fence up
against his barn, as shown in the picture below. He wants to MAXIMIZE the amount of area of the pen.
What should the dimensions be? (HINT: Area = length x width)

Answers

Answer:

Step-by-step explanation:

P = 2b + a = 100

A = b * a

a = 100 - 2b

A = b(100 - 2b) = 100b - 2b^2

dA/db = 100 - 4b

100 - 4b = 0

b = 25

a = 50

The average marks of 10 students is 41. If the average marks of the top 6 and bottom 5 rankers are 45 and 36 respectively, how much did the
5th ranker score?

a. 41
b. 42
c. 43
d. 40
no spam please​

Answers

Answer b. The student scored 42. Because the middle ground between 45 and 36 is 40,5. 42 will bring the grade up by 0,5

Max surveyed 100 of the 200 7th graders that attend his school to help determine new lunch choices in the lunch room. He has come up with these findings.

Answers

Which statement is supported by the information in his graphs?

A

It can be inferred that on the days that students are offered pizza and salad, 70% of students are pleased with the offerings.

B

It can be inferred that about the same number of students get a salad as the number of students that like cheeseburgers and tacos combined.

C

It can be inferred that pizza and chicken nuggets should be the only meals offered in the cafeteria to please the most students each day.

D

It can be inferred that if the lunchroom offered cheeseburgers and tacos on the same day, every student would get a tray that day.

Answer:

It can be inferred that pizza and chicken nuggets should be the only meals offered in the cafeteria to please the most students each day.

Step-by-step explanation:

From barchart, we can observe that ; the both pizza and chicken nugget have the highest number of 7th grade students who prefer them. Hence, with these numbers, most students will be pleased if these are the food options served each day.

3 to the power 2x+3 is subtracted by 9 which is equal to 2 times 9 to the power x+1 and is subtrcted by 6

Answers

Answer:

x = -0.5

Step-by-step explanation:

Here we have the sentence:

"3 to the power 2x+3 is subtracted by 9 which is equal to 2 times 9 to the power x+1 and is subtracted by 6"

The first part:

"3 to the power 2x+3 is subtracted by 9..."

This can be written as:

[tex]3^{2x + 3} - 9[/tex]

"... is equal to 2 times 9 to the power x+1 and is subtracted by 6"

[tex]3^{2x + 3} - 9 = 2*9^{x + 1} - 6[/tex]

Let's solve this for x.

First, we can add 9 in both sides:

[tex]3^{2x + 3} = 2*9^{x + 1} - 6 + 9 = 2*9^{x + 1} + 3[/tex]

We also know the relations:

[tex]a^n*a^b = a^{n + b}[/tex]

and

[tex](a^n)^m = a^{n*m}[/tex]

We can write the left part as:

[tex]3^{2x + 3} = 3^{2x}*3^3 = (3^2)^x*3^3 = 9^x*27[/tex]

And the right side as:

[tex]2*9^{x + 1} + 3 = 2*9^x*9 + 3 = 18*9^x + 3[/tex]

Then the equation becomes:

[tex]27*9^x = 18*9^x + 3[/tex]

Now let's move both terms with 9^x to the left side:

[tex]27*9^x - 18*9^x = 3\\[/tex]

[tex](27 - 18)*9^x = 3[/tex]

[tex]9*9^x = 3[/tex]

[tex]9^x = 3/9 = 1/3[/tex]

Now remember that:

Ln(a^b) = b*Ln(a)

Then if we apply the Ln( ) function to both sides, we get:

[tex]Ln(9^x) = Ln(1/3)[/tex]

[tex]x*Ln(9) = Ln(1/3)[/tex]

[tex]x = \frac{Ln(1/3)}{Ln(9)} = -0.5[/tex]

In the year 2000, the population of a city was 600,000 citizens. The population increases at a rate of 1.8% per year.

a. Create and graph a function to model the population, y , (in thousands), x years after 2000.
b. In complete sentences, interpret the relationship between the rate of change of the function and its graph.
c. Predict the population of the city in the year 2012.

In your final answer, be sure to include your model, graph, interpretation, and prediction of the function.​

Answers

Answer:

a) 600,000 (1.018)ᵗ, the graph is below:

* "t" is the years. 2000 is the first year, so "t" would be 1. 2012 is the 12th year so "t" would be 12.

b) As the years go by, the population increases. The years (X), and population (Y) both increase together. The graph shows that when the years increase the population increases.

c) In 2012, which would be 12 years later, I predict the population would be around 743,232 people.

Step-by-step explanation:

MRK ME BRAINLIEST PLZZZZZZZZZZZ

Drag each question to the correct location on the table.
Classify the questions as statistical or not statistical.

Answers

The answer:-Statistical

The lowest elevation in Nevada is about 65
meters below sea level. The lowest elevation in
Florida is about 2/5the value of the lowest
elevation in Nevada. Which value best represents
the lowest elevation, in meters, in Florida?

Answers

Answer:

-26 meters

Step-by-step explanation:

first do 65/5 because it is asking how much less  florida´s elevation is than nevada´s. and because it is a fraction you do it divided by 5.

65/5=13

so now because the fraction was 2/5 do 13+13

you get 26. so florida´s lowest point is -26 meters.

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