Mathematics High School

Answer the following algebraic equation:

3x-5+9(72/8)+4=2(4x-6)

Point Value- 20 points

Answers

Answer 1

Answer:

X=18.4

Step-by-step explanation:

3x-5+9(72/8)+4=2(4x-6)

3x-5+9(9)+4=2(4x-6)

3x-5+81+4=8x-12

3x-5+85=8x-12

3x+80=8x-12

3x-8x=-12-80

-5x=-92

x=-92/-5

x=18.4

Checking our work:

3(18.4)-5+9(72/8)+4=2(4(18.4)-6)

55.2-5+9(9)+4=2(73.6-6)

55.2-5+81+4=2(67.6)

50.2+85=135.2

135.2=135.2

Related Questions

the quotient of y and 221 is equal to 21

Answers

Answer: the answer is 10.54 I think

Step-by-step explanation:

I think y is 4641 because if we divide 4641 by 221 it is 21

За + 16 = 5а
PLEASE HELP

Answers

Answer:

8 = a or a = 8

Step-by-step explanation:

3a+16=5a

-3a     -3a

16= 2a

/2    /2

8=a

Answer:

a = 8

Step-by-step explanation:

Plz answer!! What is 35% of 75

Answers

It's 26.25.

Step-by-step explanation:

Hope this helps! :)

.34 times 75 is ~26

does anyone know this ?? could really use help :(

Answers

Answer:

AAS

Step-by-step explanation:

A proportional relationship is linear.
True or False

Answers

Answer:

True

Step-by-step explanation:

Yes, A proportional relationship is linear.

Can someone pretty pls help

Answers

Answer:

3÷4 = 0.75

Step-by-step explanation:

We are to find:

3÷ 4

3÷4 =

= 3 ÷ 4

= 3 × 1/4

= 3 × 0.25

= 0.75

3/4 divided by 2 1/2 help me please

Answers

Answer:

1  7/8 or 15/8

Step-by-step explanation:

Keep change flip

helpppp ahhhhhhh plz

Answers

Answer:

It's Parallel

Step-by-step explanation:

Perpendicular have to intersect  

i need this answer really bad.

Answers

Answer:

Three times a variable added to a different variable divided by six is equal to two times the different variable minus the first variable.

Step-by-step explanation:

Shela has $89 in her bank account. If she uses 30% of her money how mutch was the bill

Answers

Step-by-step explanation:

Sheila has $89 in her bank account original orihinally We want to determine the amount of money which she used to pay percentage a bill. This amount is expressed in terms of percentage of the original amount which she had in her bank.

She uses 30% of her money to pay a bill. Therefore, the amount she used to pay the bill =

30/100 89 = 0.3 ×89

= 26.70.

So Are Answer is 26.70

What is the image of the point (2,3) after the transformation Ry-axis?

Answers

Answer:

The image of the point (2, 3) after the reflection across the y-axis will be: (-2, 3)

Step-by-step explanation:

We know that when a point, let say P(x, y), is reflected across the y-axis, the sign of x-coordinate is reversed but y-coordinate remains the same.

In other words, the rule is:

P(x, y) → P'(-x, y)

Here, P'(x, y) is the image of the original point P(x, y) after the reflection across the y-axis.

Considering the point

A(2, 3)

Let us reflect the point A(2, 3) across the y-axis.

We know the rule:

P(x, y) → P'(-x, y)

so

A(2, 3) → A'(-2, 3)

Thus, the image of the point (2, 3) after the reflection across the y-axis will be: (-2, 3)

HELP! i need this done in 20 min

Answers

Answer:

No because when you divide a whole number by a fraction you always get a quotient that is smaller than the whole number.

Step-by-step explanation:

Answer:

Idk They are right

Step-by-step explanation:

Look a person on top and Give them them Big B

14 + 7 -9r + 13r what is the awnser

Answers

Answer:

21+4r

Step-by-step explanation:

Combine like terms

(14+7)+(-9r+13r)

21+4r

The answer will be 21+4r

A student takes 1.5 hours to complete her midterm. How many seconds did it take her to finish the assessment?

Answers

Answer: 5,400 seconds

Explanation: 1.5 hours is equal to 90 minutes and there is 60 seconds in a minute all you have to do is multiply 90 x 60 hope this helped(:

The student took 5400 seconds to finish her assessment.

Given,

A student takes 1.5 hours to complete her midterm.

We have to find how many seconds it took to finish her midterm assessment.

How many seconds in an minute?

One hour = 60 minutes

1 minute = 60 seconds

We have,

A student takes 1.5 hours to complete her midterm.

1.5 hours = to complete the assessment.

Converting 1.5 hours into seconds.

1 minutes = 60 seconds

Multiplying 60 on both sides.

60  x 1 minutes = 60 x 60 seconds

60 minutes = 3600 seconds

1 hour = 60 minutes

1 hour = 3600 seconds

Multiplying 1.5 on both sides.

1.5 x 1 hour = 1.5 x 3600 seconds

1.5 hours = 5400 seconds.

Thus the student took 5400 seconds to finish her assessment.

Learn more about conversion of hours to seconds here:

https://brainly.com/question/8197451

#SPJ5

GUYS URGENT PLS HELP

Answers

V= πr^2h = cylinder volume equation

V=4 /3 πr^3 = volume of the shpere

use the equation and add them up

Solve the system of equations by substitution. What is the solution for x? (1 point)

2x + y = 1
4x + 2y = −2

Answers

Answer:

No Solution

Step-by-step explanation:

2x + y = 1

y = 1 - 2x

4x + 2(1 - 2x) = -2

4x +2 - 4x = -2

2 = -2

The statement is false, therefore there is no solution.

Help!!
Find the solution of this system of equations
x- 10y = -59
-4x + 10y = 86

Answers

Answer:

x - 10y = -59

(+)-4x + 10y = 86

-3x = 27

x = -9

substitute x into x - 10y = -59

-9 -10y = -59

-10y = -50

y = 5

10m^5n^4/15m^2? Can someone help me

Answers

Answer:

2m^7n^4/3

Step-by-step explanation:

write and solve this equation: Samantha is one year less than twice her brother Jack’s age. If the sum of their ages is 41, how old is Samantha?

Answers

Answer:

Samantha's age = 27 years

Step-by-step explanation:

Let Jack's age be = x

As Samantha is one year less than twice her brother Jack’s age.

So Samantha's age = 2x-1

As the sum of their ages is 41.

Thus, the equation become

x+2x-1 = 41

3x-1 = 41

3x = 42

Dividing both sides by 3

x = 14

It indicates that Jack's age = 14 years

Therefore,

Samantha's age = 2x-1 = 2(14)-1 = 27 years

I JUST NEED HELP PLZZ
AND THANK YOU

Answers

Answer:

43

Step-by-step explanation:

Based on the pattern of the scatter plot, 43 seems to be the better option.

a) Which of these numbers is 8 less than -15?
7
-7
23
-23
A
B
с
D

Answers

-7 the answer is -7 yes

Answer:

-7

Step-by-step explanation:

y because i know so

Together, Eric and Mike have at least 15 Hot Wheels. If Eric has 9 Hot Wheels, how many can Mike have?

Answers

Answer:

6

Step-by-step explanation:

Answer:

he should have 6

Step-by-step explanation:

Sequences.
64,32,16,8,4,___, ___ what are the next two numbers?
and what is the rule?

Answers

Answer:

2, 1

Step-by-step explanation:

half of 64 is 32

half of 32 is 16

half of 16 is 8

half of 8 is 4

half of 4 is 2

half of 2 is 1

Answer:

2, 1

Step-by-step explanation:

you are dividing it in half or by two

Please help!!!
If b⊥c and b⊥d, then c ? d

Answers

Answer:

C and D are parallel

Step-by-step explanation:

If b⊥c and b⊥d, then that means that they are both parallel because they both have a 90 degree anglewith line B.

Answer:

| | (Parallel)

Step-by-step explanation:

I'm assuming that is what it is asking. if b and c are perpendicular, that means they form 90 degrees on all angles. The same for b and d. So if both c and d are perpendicular to b, then they are parallel.

Ants have 6 legs. Elena and Andre write equations showing the proportional relationship between the number of ants, , to the number of ant legs . Elena writes a= 6L and Andre writes l=1/6a . Do you agree with either of the equations? Explain your reasoning.

Answers

Answer: Elena would be the correct answer

Step-by-step explanation: since ants have 6 legs and have 1 body we know that there are 6 legs for every 1 ant. hope this helps

Please help I need help please

Answers

Step-by-step explanation:

There are 84% out of 225. First find 10%. To do that divide the number by 10, so 225 ÷ 10 = 22.5 Next, do 22.5 x 8. Then you have 80%. Now, all that is need ed is the 4%. To get that, divide 225 by 100. Multiply the answer by 4 to get the 4%. Add the 80% and the 4% to get your answer. I really hope this helps. answers

Also, since I am just helping, I am un able to give you straight answers. I hope this also helps with work in the future.

Two men are decorating a room. One has painted 20 m² and the
other only 6 m². They continue painting and manage to paint
another x m'each. If the first man has painted exactly three times
the area painted by the second man, find the value of x.

Answers

Answer:

1 m²

Step-by-step explanation:

The first man painted:

x + 20

The second man painted:

x + 6

If the first man painted 3 times more, then:

x + 20 = 3(x + 6)x + 20 = 3x + 183x - x = 20 - 182x = 2x = 1

9[15-(3+4)] I don’t know how to do this problem and Photomath can’t solve it either

Answers

the answer is 72


you take 3+4 and get 7
then 15 - 7 which is 8
then whenever a number is outside the problem it means you multiply so, 9x8 =72

Answer:

72

Step-by-step explanation:

9[15-(3+4)]

9[15-7]

9[8]

72

Assume y varies directly with x. If y = 80
when x = 8, find x when y = 40.

Answers

Answer:

4

Step-by-step explanation:

the mean number of emails adele received during a week was 51.
The numbers received for the six days were 39, 57, 70, 45, 71, 32.Find how many emails she received on the seventh day. ​

Answers

Given:

The mean number of emails adele received during a week was 51.

The numbers received for the six days were 39, 57, 70, 45, 71, 32.

To find:

The number of emails received on the seventh day.

Solution:

Let x be the number of emails received on the seventh day.

We know that,

[tex]\text{Mean}=\dfrac{\text{Sum of observations}}{\text{Number of observations}}[/tex]

[tex]51=\dfrac{314+x}{7}[/tex]

Multiply both sides by 7.

[tex]357=314+x[/tex]

Subtract 314 from both sides.

[tex]357-314=x[/tex]

[tex]43=x[/tex]

Therefore, she received 43 emails on the seventh day.

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