Mathematics High School

Three less than 4 times a number is equal to 12 more than seven times the number. What is the number?

Answers

Answer 1

Answer:

-5

Step-by-step explanation:

4x-3 = 7x+12

Subtract 12 from each side

4x-15 = 7x

Subtract 4x from each side

-15 = 3x

Divide each side by 3

-5 = x

Rewrite using symmetric propertyx = -5

Related Questions

Click all of the multiples of 3 that are greater than 3 shown in the table. Don’t worry if a number has already been crossed out, go ahead and click it if it is a multiple of 3 that is greater than 3. (Choose 5)

12
6
15
7
18
9

Answers

Answer:

12 15 18 9 7

Step-by-step explanation:

Answer:

12, 6, 15, 18, 9

Step-by-step explanation:

Multiples of 3 greater than 3 are:

12 = 3*46 = 3*215 = 3*518 = 3*69 = 3*3

The only odd number is 7

⚠️⚠️Please help⚠️⚠️ Pip and Ali share S785 in the ratio Pip:Ali = 4:1.

Work out Pip's share.

Answers

Answer:   $628

==========================================================

Work Shown:

x = Ali's share

4x = Pip's share, because it is four times bigger due to the ratio 4:1

x+4x = 5x = total amount of money = 785

5x = 785

x = 785/5

x = 157 dollars is Ali's share

4x = 4*157 = 628 dollars is Pip's share

Note that 157+628 = 785 to help confirm the answer.

What is the difference between a linear function and a non linear function?

Answers

Answer:

A difference is that a linear line is straight and a non linear is not

The distance a car can travel varies directly with the amount of gas in the tank. The car can travel 135 miles with 5 gallons of gas. How many miles can the car travel with 8 gallons of gas? and The value of y varies directly with x. When y=6, x=½. What is the value of x when y=312? please help me.

Answers

Answer:

216

Step-by-step explanation:

135/5=27

27*8=216

*IM CONFUSED??? HELP ME PLEASEE !! , MAKE SURE ITS THE CORRECT ANSWER ITS FOR AN ASSESSMENT ! *

Answers

Answer:

First option: y = 5/6x + 12

Step-by-step explanation:

In the slope-intercept form, y = mx + b:

m = represents the slope

b = represents the y-coordinate of the y-intercept, (0, b).

In your given question, it states that the slope (m) = 5/6, and the y-intercept is (0, 12). This means that the value of (b) for your linear equation is the y-coordinate of (0, 12). Therefore, the correct answer is:

y = 5/6x + 12

the x-intercept was substituted incorrectly

write the correct equation

an equation of the parabola is y =__________​

Answers

Answer:

Step-by-step explanation:

let the eq. of parabola be

y=ax²+bx+c

points (-1,0),(2,0),(3,4) and (0,-2) lie on it.

0=a-b+c

0=4a+2b+c

subtract

3a+3b=0

a=-b

4=9a+3b+c

-2=0+0+c

c=-2

a-b-2=0

-b-b-2=0

-2b-2=0

b+1=0

b=-1

a=-b=-(-1)=1

eq. of parabola is

y=x²-x-2

what is 3 3/4 - 2 1/5

Answers

Answer:

1 11/20

Step-by-step explanation:

3 3/4 - 2 1/5

(3-2) + (3/4 - 1/5)

1 + 11/20

1 11/20 or 31/20 or 1.55

whats 3+9+3+6+5+8+4+3+9-23-1 divided by 2=

Answers

Answer:

13

Step-by-step explanation:

=26/2

=13

hope u got it

Solve the equation
cb – 20 = –10 for b.

Answers

ANSWER: B = 10/C
You have to isolate the variable by dividing each side by factors that don’t contain the variable

You are selling tickets for a high school play. Student tickets cost $5 and general admission tickets cost $7. You sell 103 tickets and make a total of $561. How many of each type of ticket did you buy?​

Answers

Answer:

2876

Step-by-step explanation:

Let the student tickets be x

Let the generall Admission tickets be y

x+y=525

y=525-x

4x+6y=2876 (subsitute for y)

4x+6(525-x)=2876



please help me thank you​

Answers

Answer:

550 trees

Step-by-step explanation:

9*50=450

450+100=550 Trees

Plz help it’s due tonight!!!

Answers

LKM≈TEJ since it makes the triangles congruent, although the angles in each triangle are not corresponding equal angles

Help me solve this ASAP please

Answers

Answer:

3

Step-by-step explanation:

Remember BEDMAS!!

Brackets first:

(15) / (1+(2)^2)

Exponents next:

(15) / (1+4)

15 / 5 = 3

Hope that helps, feel free to ask questions

The answer is 3 use BODMAS, BEDMAS or PEDMAS

Write an equation then solve It costs $4 to enter the fair. Each ride cost $2.50 You have $21.50 How many rides can you go on

Answers

Answer:

21.50-4-2.50*6

Step-by-step explanation:

you can get on 6 rides

solve the compound inequality-8 < 5x + 7 <2

Answers

Answer:

-3 < x ≤ -1

Step-by-step explanation:

-8 < 5x + 7 ≤ 2

First, subtract 7 from all sides of the inequality:

-8 - 7 < 5x + 7 - 7 ≤ 2 - 7

-15 < 5x < -5

Divide all sides by 5 to isolate x:

-15 ÷ 5 < 5x ÷ 5 ≤ -5 ÷4

-3 < x ≤ -1

Hope this helps!

the number get when 90 is divided by 30 and its quotient is multiplied by 53?

Answers

Answer:

Step-by-step explanation: 90 divided in to 30 is not 53 is is equal to 3

click on file! need help with this too! <3 (:​

Answers

Answer:

1. True

2. False

3. True

solve the inequality. -1/2a < 6​

Answers

Answer:

a > -12

Step-by-step explanation:

Answer:

[tex] \frac{ - 1}{2} a < 6[/tex]

[tex]a < 6 \div \frac{ - 1}{2} [/tex]

[tex]a < 6 \times - 2[/tex]

[tex]a < - 12[/tex]

The library charges a fine
each day that a book is
late. If Moriah recently paid
a $7.15 fine for a book that
was 13 days late, what is
the daily fine?

Answers

.55 when rounded up but this is the actual answer: 0.548461538461538

Explain why 0.02 x 0.3 = 0.006. Answer in at least 2 complete sentences.​

Answers

Answer:

.02*.03=.006 because when you multiply decimals after you get your answer you need to move the decimal point over 3 spaces. You do this because when you move the decimal point out three to multiply it you have to move it back in three after you get your solution, or else it is incorrect.

Step-by-step explanation:

what is the rate of change of y=-5/4x

Answers

My teacher always says if the number is in front of the X then that the answer ‍♀️

I NEED HELP ASAP PLEASE NO LINKS!!!

Answers

Answer:

The answer to your question is 10/9

The answer is 10/9 , hope this helps

Help plz I need it it’s hard

Answers

Answer:

the awnser is 2

Step-by-step explanation:

anyone kind enough to help out :/?

I rlly need it​

Answers

What do you need help on. I may be able to help

If you could do this you’re the best and you’ll also get a lot of points thanks

Answers

Answer:

take the answer on picture which I attached with your question

An engine in a model rocket can cause the rocket to accelerate from 0 m/s to 238 m/s in 1.2 seconds. What is the acceleration of the rocket?

Answers

Answer:

Step-by-step explanation:

acceleration = change of velocity / time

= 238/1.2

= 198.3 m/s/s.

What quantities are being compared? (If there are x- and y- axes, what do they represent?)

Answers

Answer:

The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line).

1. Refer to the equation 2x − 4y = 12.
(a) Create a table of values for at least 4 points. Show your work on how you found the values for each coordinate pair, and validated the points were on the line.

Work for Point 1



Work for Point 2



Work for Point 3



Work for Point 4

Answers

Answer:

1a

2d

3I

4j

5b

6o

7q

Step-by-step explanation:

Use the order of operations to simplify 1/9×3^3−2(16+23).

Answers

Use pemdas ( parentheses, multiplication, division, addition, and subtract)

Answer:

-75

Step-by-step explanation:

attached the work below! comment or message me if you have any questions :))

A car repair shop charged $80 per hour for labor and $210 for the parts of a car. If the total cost of repair for the car was $490, how many hours did it take to repair the car? (1 point)

Answers

Answer:

80x + 210 = 490

x = 3.50 per hour

Step-by-step explanation:

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