Mathematics Middle School

Big Reward! (Answer the right answer not just comment).


2(5x-4)=ax+b
Find a value for a and b so that the solution is
A. Has one solution
B. Has no solutions.
C. Infinite Solutions

Answers

Answer 1
A: One solution- a=11 b=5
B: Has no solution- a=10 b=5
C: Infinite solution- a=10 b=-8
Answer 2

Answer:

A. a = 0, b = 2

B. a = 10, b = 0

C. a = 10, b = -8

Step-by-step explanation:

2(5x-4)=ax+b

10x - 8 = ax + b

When a = 10, b = -8

This equation becomes true for all x. Hence infinite solutions.

When a = 10, b is not -8,

This equation has no solution.

One possible combination could be:

a = 10, b = 0

When a is not 10,

The two sides of the equation become two non parallel lines which will intersect at one point.

A combination could be:

a = 0, b = 2

Related Questions

FRIST ANSWER WILL MARK BRAINLIEST!!! what is 5/12 X 26

Answers

Simplify the following:
5/12×26

5/12×26 = (5×26)/12:
(5×26)/12

The gcd of 26 and 12 is 2, so (5×26)/12 = (5 (2×13))/(2×6) = 2/2×(5×13)/6 = (5×13)/6:
(5×13)/6
5×13 = 65:
Answer:  65/6
the answer is 10.8333333

One year, a student council sold 856 copies of a school yearbook. Four fifths of the students at school bought a copy. How many students did not buy a yearbook?

Answers

214 students didn't buy the yearbook. I solved this answer by dividing 856 by 4 and I got 214 which means every 1/5 is 214 students

By solving the equation 4/5 * x = 856, we find that the total number of students at the school is 1070. Calculating the remaining one fifth, we determine that 214 students did not buy a yearbook.

The student's question asks us to find out how many students did not buy a yearbook if four fifths of the students at school did buy one. To solve for this, we need to first determine the total number of students and then calculate the remaining one fifth who did not purchase the yearbook.

Let x represent the total number of students at the school. Since 856 copies of the yearbook were sold and this represents four fifths, we can set up the equation:

4/5 * x = 856

To find x, we divide both sides of the equation by 4/5, which is equivalent to multiplying by the reciprocal (5/4):

x = 856 * 5/4

x = 1070

Thus, the total number of students at the school is 1070. To find out how many did not buy the yearbook, we take the remaining one fifth:

1/5 * 1070 = 214

3758.75 Divided by 303.125

Please give a picture in your answer to show how u got the answer

Offering lots of points and giving up lots of points.. so, please answer correctly

тнαикѕ!

Answers

3758.75/303.125=12.4
I hope you can read the screenshot.

A restaurant has 26 tables in its dining room. It takes the waitstaff 10 minutes to clear and set 4 tables. At this rate, how long will it take the waitstaff to clear and set all the tables in the dining room?

Answers

well, its 10 for 4. so 8 is 20, 12 is 30, 16 is 40 20 is 50, and 24 is 1 hour, 2 tabels is half the time so 5 min... so it would take -1 hour and 5 min

The time it will take the waitstaff to clear and set all the 26 tables in the dining room is;

1 hour 5 minutes

We are told that the waitstaff takes 10 minutes to clear and set 4 tables.

Thus, rate of clearing and setting 1 table = 10/4

rate of clearing and setting 1 table = 2.5 minutes per table

Now, we want to find out how long it will take her to clear and set 26 tables at the rate we got above.

By use of proportions, we can find it as;

Time it takes to clear and set 26 tables = 2.5 × 26

Time it takes to clear and set 26 tables = 65 minutes

We know that 60 minutes make 1 hour, thus converting the time to hour and minute gives us;

1 hour 5 minutes

Read more at; https://brainly.com/question/7389834

Aliyah had $24 to spend on seven panicles after buying them she had $10. How much did each pencil cost

Answers

Hello!

Subtract the $10 from the amount of money Aliyah had to spend because we already know that she will NOT use the $10 towards the pencils.

24 - 10 = 14

This is how much money Aliyah spent on seven pencils. Now, we must find the cost of each individual pencil.

Next, divide this by the amount of pencils Aliyah bought (7):

14 ÷ 7 = 2

ANSWER:

Each pencil cost $2.00.

How do u know that the sum of -2(3/4) and 5/6 is rational?

Answers

Any multiplication or addition of rational numbers (regardless of sign) will always give a rational result.

Hurry!!
Determine which of the following exponential formula(s) represents I, V, VI in the graph above.

Answers

For this case what you should see is the behavior of each function to find the correct answer.
 We have functions of the type:
 f (t) = a * (b) ^ t
 Thus,
 For I, we have:
 f (t) = 30 * (1.05) ^ t
 For V we have:
 f (t) = 30 * (0.95) ^ t
 For VI we have:
 f (t) = 30 * (0.85) ^ t
 Answer:
 option c.
Answer:

Option: c is the correct answer.

        c.  φ, ε and δ

Step-by-step explanation:

From the graph given to us we see that the graph passes through the same initial point that is the starting point is same i.e. when t=0.

Also, they attain the maximum value at t=0.

α: [tex]10(1.2)^t[/tex]

Now when t=0 we have:

 Value=10

β :   [tex]10(1.5)^t[/tex]

Now when t=0 we have:

 Value=10

χ:  [tex]20(1.2)^t[/tex]

Now when t=0 we have:

 Value=10

δ: [tex]30(0.85)^t[/tex]

Now when t=0 we have:

Value=30

ε: [tex]30(0.95)^t[/tex]

Now when t=0 we have:

Value=30

φ: [tex]30(1.05)^t[/tex]

Now when t=0 we have:

              Value=30

Hence, we see that δ , ε and φ are the three functions such that they have the same initial value.

Emily says 1 1/4 equals 4 divided by 5. Is she correct? Explain

Answers

no because it is not 4/5 but 5/4 so she is incorrect 

explain why the graph of the function y = 3x + 40 will never intersect the graph of the function y = 3x + 35 .

Answers

These two graphs have the same slope (3), and are therefore parallel. Parallel lines never intersect each other.

Suppose the length of the rectangle is equal to twice the width, or 2w. If the width is 3, what is the perimeter?

Answers

length = 2w
 w = 3
length = 2*3 =6

perimeter = 3 + 3 +6 +6 = 18

Kim paycheck was $257.20. She put 1/4 of her paycheck into a savings account and used 1/3 of what was left to pay bills. How much money does she have remaining from her paycheck

Answers

To determine how much of her paycheck she put into her savings account, divide the total amount by 4:

257.2 / 4 = 64.3

A fourth of Kim's paycheck is $64.30; this is the amount she put into her savings account.

Since Kim now has 1/3 of her paycheck, we know that the 1/3 of what was left which she used to pay bills is equal to the amount she put into her savings account: $64.30.

Now, since we know that Kim had took out two equal amounts of money from her paycheck which were fourths, we know that whatever she has left will be half of that:

257.2 / 2 = 128.6

Answer:
Sue has $128.60 remaining from her paycheck.

Which is the best estimate for the length of a piano keyboard?

Answers

I would say a 4-6 foot length is good for a piano keyboard
 

multiply the number of letters in the alphabet by the number of noses on a rabbit. What's the product

Answers

26 this is your answer
twenty six is your answer

Mario has $100 in a savings account. The interest rate is 5% per year and is not compounded. How much interest will he earn in 1 year?

Answers

(5/100)*$100 = $5.00 . . . . Mario's interest amount

5/8 of the 64 musicians in a music contest are guitarists. Some of the guitarists play jazz solos, and the rest play classical solos. The ratio of the number of guitarists in the contest is 1:4. How many guitarists play classical solos in the contest?

Answers

First, find the number of guitarists. 5/8*64=40.

Now, create an equation. x + 4x = 40
5x = 40
x= 8

There are 8 jazz solos and 32 classical solos.

What is the exact surface area of this right cone

A.1944 pi cm sq
B.5346 pi cm sq
C.1701 pi cm sq
D. 1215 pi cm sq

Answers

The correct answer is:  [A]:  " 1944 pi cm sq" . 
______________________________________________________
The exact surface area of the given "right cylinder" is:  " 1,944 π  cm² " .
_______________________________________________________

Explanation:
______________________________________________________
The formula for the "surface area, S.A." of a right cone is:
______________________________________________________
       →   S. A.  = π r [ r + √(h² + r²) ]
______________________________________________________
    in which:   "S. A." is the "surface area" (in units of "cm² " ; in our case) ;
                                  →  for which we shall solve; 

                        π = π ; (Note, we are asked to solve for the EXACT surface area of the given "right cone" ; so we shall solve in terms of "π" ; & we note that the answer choices provided are all "in terms of π" ; 

                     " r = "radius" of the [circular base] = diameter / 2 ;

                          = 54 cm / 2 = 27 cm ; 

                     " h = perpendicular height = 36 cm " ;
____________________________________________________ 

→  Plug in our known values into the formula/equation ;
         for the "surface area, S.A." of a right cone  to solve:
____________________________________________________

       →   S. A.  =  π r [ r + √(h² + r²) ]  ;

       →   S.A.   =  π * (27 cm) * [ 27 cm + √[ (36 cm)² + (27 cm)² ]  ;

                       =  π * (27 cm) * [ 27 cm + √[ (36² * cm²) + (27² cm²) ]  ;
                       
                       =  π * (27 cm) * [ 27 cm + √[ (1296 cm²)  + (729 cm²) ]  ;

                       =  π * (27 cm) * [ 27 cm + √ [ (1296 + 729) cm² ]  ;

                       =  π * (27 cm) * [ 27 cm + √ [ (1296 + 729) cm² ]  ;

                       =  π * (27 cm) * [ 27 cm + √ [ (1296 + 729) cm² ]  ;

                       =  π * (27 cm) * [ 27 cm + √ (2025 cm² ]  ;

                       =  π * (27 cm) * [ 27 cm + √ (2025 cm² ]  ;

                       =  π * (27 cm) * [ 27 cm + 45 cm ]  ;

                       =  π * (27 cm) * [ 27 cm + 45 cm ]  ;

                       =  π * (27 cm) * [ 72 cm ]  ;

                       =  π * (27 cm) * [ 72 cm ]  ;
 
                       =  (27 * 72) * π  cm²  ; 

                       =  (27 * 72) * π  cm²  ; 

                          =   " 1,944 π  cm² " .
_______________________________________________________
Answer:  [A]:  " 1944 pi cm sq" . 
_______________________________________________________
The exact surface area of the given "right cylinder" is:  " 1,944 π  cm² " .
_______________________________________________________

Juan lives 2.5 miles from the park. It took him 12 minutes to ride his bicycle to the park. What was Juan’s average speed in miles per hour?

Answers

2.5/12 = x/60

12x = 150

x = 12.5 mph

Juan's average speed was found to be 12.5 mph, calculated by dividing the distance of 2.5 miles by the time of 0.2 hours.

Juan lives 2.5 miles from the park, and it took him 12 minutes to ride his bicycle there. To find Juan's average speed in miles per hour, we need to follow a few steps. First, we convert the time taken into hours because speed is often expressed in miles per hour (mph).

12 minutes is equal to 12 / 60 hours, which is 0.2 hours. Then, we use the formula for average speed:

Average speed = Total distance / Total time

So for Juan's trip, we get:

Average speed = 2.5 miles / 0.2 hours = 12.5 mph.

Therefore, Juan's average speed was 12.5 mph.

−2x − 8 = −6x + 4
pls

Answers

the answer is (x=3) hope it helps and have a great day

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : 


                     -2*x-8-(-6*x+4)=0 


 Pull out like factors :


   4x - 12  =   4 • (x - 3) 


Solve :    4   =  0


This equation has no solution.

A a non-zero constant never equals zero.


 Solve  :    x-3 = 0 


 Add  3  to both sides of the equation : 

                      x = 3 


The answer is x=3

The actual mechanical advantage of a machine

A.cannot be less than 1

B. decreases as the input distant increases

C. increases with greater friction

D. is less than the ideal mechanical advantage of the machine

Answers

1. D
2.B
3.C
4.B
5.C

Hope this helps
The answer is D just took the test.

_____ season is when the weather is best in a locale and when many people have time off for vacation.
A.Low
B.High
C.Shoulder
D.Average

HELP PLEASEEEE

Answers

The answer should be High

Or B.        Have a great day

Answer:

B. High

Step-by-step explanation:

High season is when the weather is best in a locale and when many people have time off for vacation.

It is also called peak season.

In terms of business, we can define the peak season or high season as a season when trading is high and many tourists visit a tourist place. Every business has peak seasons like flowers or certain sea food items.

Which equation represents the following word sentence? Five more than three times x is twenty. 5x + 3 = 20 3x + 5 +20 3(x + 5) = 20 3x + 5 = 20 Description

Answers

Final answer:

The equation that represents the word sentence 'Five more than three times x is twenty' is 3x + 5 = 20. To solve this equation, subtract 5 from both sides and divide both sides by 3 to find the value of x.

Explanation:

The equation that represents the word sentence 'Five more than three times x is twenty' is 3x + 5 = 20.

In this equation, '3x' represents three times x, and '5' represents five more than that. The equation states that the sum of three times x and five is equal to twenty.

To solve this equation, you can subtract 5 from both sides to isolate '3x', and then divide both sides by 3 to find the value of x.

A cylinder shaped water tank has a diameter of 10m and a height of 10m what volume of water does the tank contain when it’s 75% full use 3.14 to approximate pi

Answers

Hello!
----------
The volume of the cylinder shaped water tank when it's 75% full is 588.75^3 m.
----------
WORK: 3.14*5^2*10=785
              785*.75=588.75
----------
Have a great day!

Answer: The person top is correct.

Step-by-step explanation:

how many nickels have the same value as a half dollar.?

Answers

A nickel has the monetary worth of $0.05
A half-dollar has the monetary worth of $0.50

0.50/0.05 = 10

you will need 10 nickels to have the same monetary worth as a half dollar


hope this helps

V = 1/3 HS^2 

Using opposite operations, rewrite the equation so s2 is on one side of the equation by itself.

Answers

V=1/3 HS²
Solving for S².
Multiply both sides by 3.
3V= 3 x 1/3 HS²
3V=HS²
Divide both sides by H.
3V/H=HS²/H
3V/H=S²
Switch sides
S²=3V/H

Answer: S² = 3V / H

Final answer:

To solve for S² in the equation V = 1/3 HS², multiply both sides by 3 and then divide by H, resulting in S² = 3V / H.

Explanation:

To rewrite the equation V = 1/3 HS² so that S² is by itself on one side of the equation, we need to use opposite operations.

We start by multiplying both sides of the equation by 3 to eliminate the fraction on the right side:

3V = HS²

Next, we divide both sides by H to solve for S²:

S² = 3V / H

Now, S² is by itself on one side of the equation, which is the desired outcome.

If you know two corresponding sides of two triangles and you know that the corresponding angles are equal, how can you find out if they are similar triangles?
a.
the other angles are proportional
c.
ratios of the sides will be equal
b.
the vertical angles will be congruent
d.
ratio of the sides will not be equal

Answers

Answer - C. The ratio of the corresponding sides will be equal

Two triangles can be shown to be similar if it can be proven that they have two sets of corresponding sides in equal proportion and that the corresponding angles, which they include are congruent.

Answer:

the answer is C

Step-by-step explanation:

i got it right on edg 2020-2021

Is this right? Thanks for helping

Answers

I'm pretty sure it's 20% because it's 12 people that have both traits out of 60 people in total. 12 x 5 = 60.

Hansel makes the following statement:

"I have an 80% chance of being selected as the captain of the baseball team and a 10% chance of being elected student body president."

What is the probability that Hansel will be selected as the captain of the baseball team and will be elected student body president?

Answers

90% I think but not sure
Hansel will have an 8% chance of being the President of both.
You multiply 80% by 10%

25 is 125% of what number

Answers

25 is 125% of 20 

Hope this helps!
25 is 125% of 20 I’m sure

Matt has 75 hundredths of a dollar. Kendra has 7 tenths of a dollar. Who has more money?

Answers

Answer:

matt

Step-by-step explanation:

Matt has 75 hundredths of a dollar ($0.75) while Kendra has 7 tenths of a dollar ($0.70). Matt has more money as $0.75 is greater than $0.70.

In this scenario:

Matt has 75 hundredths of a dollar, which is equal to $0.75.

Kendra has 7 tenths of a dollar, which is equal to $0.70.

To determine who has more money, compare $0.75 and $0.70. Clearly, Matt has more money since $0.75 is greater than $0.70.

Based on the circle graph, how many more students voted for raja than for Dayton if 300 students voted

Answers

I FOUND YOUR COMPLETE QUESTION IN OTHER SOURCES.
 PLEASE SEE ATTACHED IMAGE. 
 For this case what you must do is the following rule of three: 
 For Raja: 
 300 ----> 100%
 x -------> 44%
 x1 = (44/100) * (300)
 x1 = 132
 For Dayton:
 300 ----> 100%
 x -------> 25%
 x2 = (25/100) * (300)
 x2 = 75
 Then,
 x1-x2 = 132-75 = 57
 Answer: 
 57 more students voted for Raja than for Dayton
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