Find the student’s error in solving the following inequality.
31 < –5x + 6
25 < –5x
–5 < x

The student should have added 6 to both sides instead of subtracting it.

The student divided 25/–5 incorrectly.

The student should have switched the direction of the inequality sign to get –5> x for a final answer.

Answers

Answer 1

Answer:

The student should have switched the direction of the inequality sign to

get –5 > x for a final answer.

Step-by-step explanation:

When multiplying or dividing an inequality by a negative "flip" the inequality sign

The student should have switched the direction of the inequality sign to

get –5 > x for a final answer.

---------------

Note:

For a more conventional appearance the entire inequality can be flipped to

–5 < x


Related Questions

Answer pls I dont know maths

Answers

Answer:

well learn math

Step-by-step explanation:

did you know that everyday is someone's birthday? if you don't

then Three piggies in the city.

the cost of fun for kids magazine for x number of months is shown below

The cost (C) of another magazine, Family Fun, for x number of months is
given by C-1.99x.

The cost of another magazine, Kidz Comics, is $1.85 for each month. The
annual subscription includes a delivery charge of $10, while the annual
subscription for Fun for kids and Family Fun has no such extra charge
Which annual subscription costs the most?​

Answers

Answer:

Kidz comic costs the most

Step-by-step explanation:

Given

Family Fun

[tex]C(x) = 1.99x[/tex]

Kidz Comics

[tex]m = 1.85[/tex] --- monthly rate

[tex]b = 10[/tex] --- delivery charge

Required

Which is more expensive

A linear function is represented as:

[tex]f(x) = mx + b[/tex]

Where

[tex]m = rate[/tex]

[tex]b = y\ intercept[/tex] --- i.e. the base charge

So, for Kidz comic; We have:

[tex]f(x) = mx + b[/tex]

[tex]C(x) = 1.85x + 10[/tex]

To calculate the annual cost, we set x = 12; i.e. 12 months.

So, we have:

[tex]C(x) = 1.99x[/tex] ---- Family Fun

[tex]C(12) = 1.99 * 12[/tex]

[tex]C(12) = 23.88[/tex]

[tex]C(x) = 1.85x + 10[/tex] --- Kidz comic

[tex]C(12) = 1.85*12 + 10[/tex]

[tex]C(12) = 22.2 + 10[/tex]

[tex]C(12) = 32.2[/tex]

By comparison

[tex]32.2 > 23.88[/tex]

Hence, Kidz comic is more expensive

In the circle below, AB=CD. Chord AB = 8x and chord CD = 2x + 3. Find
the value of x.

Answers

I think X=3/4 but I’m not 100% sure

write the expanded from of the expression 4(2x-8)

Answers

Answer:

8x - 32

Step-by-step explanation:

Sydney asked her friends to write down the number of hours they practice their instruments each week. The data is shown.
1,6,6, 5, 2, 2, 0, 5, 6, 7
What is the median of the data?
O A 2
OB. 4
O c. 5
OD. 6
O E. 7

Answers

The median in this data set is C. 5

#2 find the r and h
find the surface area as we

Answers

Answer:

2) 96

3) 121

Step-by-step explanation:

2) 8 x 12 = 96

3) 11 x 11 = 121

Answer:

surface area of the cyclinder=2πr²+2πrh

=(2×3.14×12²)+(2×3.14×12×8)

=904.32+602.88

=1507.2mi²

type the correct answer in each box. if necessary, use / for the fraction bar(s). If a = 0.6 and b = 0.75, then a•b = ____ and a/b = _____

Answers

Answer:

If a=0.6 and b=0.75, then a·b=9/20 and a/b=4/5

Step-by-step explanation:

The value of a•b =0.045 and a/b = 8

What is fraction?

A number expressed as a quotient, in which a numerator is divided by a denominator

given: a=0.6, b= 0.075

Now, a*b= 0.6*0.075

               = 0.045

and, a/b

= 0.6/0.075

=8

Hence, a*b= 0.045 and a/b =8

Learn more about fraction here:

https://brainly.com/question/10354322

#SPJ2

I don’t understand this plz help

Answers

Answer:

2sqrt(5)

Step-by-step explanation:

Using Fourmla of distance between two points

Solve for x: 4(x + 5) = 3(x - 2) -2(x + 2)

I’ll mark brainiest I need an answer ASAP

Answers

Answer:

1: D

2 (but actually 3) B

Step-by-step explanation:

Answer: x=-10

Step-by-step explanation:

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

4x+20=3x-6-2x-4

Next combine like terms: 4x-3x+2x=-20-6-4

                                           3x=-30

                                             x=- 10

Bob has 3 pounds of hamburger meat. Each hamburger is 1/2 pound
Which equation is correct to figure out how many hamburgers Bob car
make?

Answers

Answer:

6

Step-by-step explanation:

3 divided by 1/2 = 6

2 hambugers = 1 pound

Can one of you lovely people help me please ?

Answers

Answer:

the answer is

C. = x=22.82

22.82! Is the correct answer

helpppppppppppp plzzzzzzzzzxzx

Answers

Answer:

The answer would be A. :)

What do we call the vertical axis?

Answers

y-axis is the vertical axis on the Cartesian coordinate plane. ... A y-axis is the line on a graph that is drawn from bottom to top. This axis is parallel to which coordinates are measured. The numbers placed on the y-axis are called y-coordinates

Answer:

On the Cartesian coordinate plane, the y-axis is the

vertical axis. A y-axis is a line drawn from bottom to top ona graph. 

This axis runs parallel to the axis along which coordinatesare measured. The numbers on the y-axis are referred to as y-coordinates.

Step-by-step explanation:

-

This comes with no question

Answers

Answer:

It has to be 145 degrees.

Step-by-step explanation:

There would be 2 60's and one 95. 360-95-(60*2)=145.

A rappelling rope used for outdoor programs, rescue and industrial work, can safely support a weight "W" (in pounds) provided, where "d" is the rope's diameter (in inches). Determine the diameter of rope that would be needed to support a weight of at least 5,500 pounds.

Answers

Answer:

D =  ( d * 5500 ) / W

Step-by-step explanation:

Diameter of rope " d "  supports "w" weight

i.e.  d = W

d ( inches ) = W ( pounds )

   ? ( inches ) = 5500 pounds

The Unknown diameter  D ( ? ) = d * 5500 / W

 

Fine as has a Z-score of 2.23 on his SAT. How did he do compared to the rest of his students?
a) There is not enough information given.
b) he did the same as most other students
c) he did worse than most other students
d) he did better than most other students.

Answers

A since they didn’t tell you what the other students have gotten therefore you can’t complete the data

Elijah bought a chest of drawers originally priced at $50.40 but on sale for 40% off. After 6.25% sales tax, what was the total cost

Answers

Answer:

$32.13

Step-by-step explanation:

IXL

The total cost will be;

⇒ $32.05

What is mean by Percentage?

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

Given that;

Elijah bought a chest of drawers originally priced at $50.40 but on sale for 40% off.

Now,

Since, Elijah bought a chest of drawers originally priced at $50.40 but on sale for 40% off.

Hence, The sale price = 40% of $50.60

                                  = 40/100 × $50.60

                                  = $20.24

Thus, The price chest of drawers become = $50.40 - $20.24

                                                                 = $30.16

Since, The sales tax = 6.25%

Hence, The sales price = 6.25% of $30.16

                                    = 6.25/100 x 30.16

                                    = $1.89

Thus, The total cost = $30.16 + $1.89

                              = $32.05

Therefore, The total cost will be;

⇒ $32.05

Learn more about the percent visit:

https://brainly.com/question/24877689

#SPJ6

Which lines are parallel to 8x + 4y = 5? Select all that apply.
A. y = –2x + 10
B. 16x + 8y = 7
C. y = –2x
D. y – 1 = 2(x + 2)

Answers

Answer:

A , B , C

Step-by-step explanation:

1) find the slope of the given line

slope = (-a/b) = (-8/4) = -2

two parallel lines have the same slope

A : correct

B : (-a/b) = -16/8 = -2 (correct)

C : correct

D : wrong (2 is different from -2)

Options A, B, C are all correct

(~‾▿‾)~

what's the answer ?

[tex] \sqrt{ {4}^{4} \times 0} [/tex]

Answers

Answer:

/~ 4× 4= 4^2= +4

Step-by-step explanation:

I dont have the right lines so ill show you from another example

Answer:

Solution given;

[tex] \sqrt{ {4}^{4} \times 0} [/tex]

[tex] \sqrt { 0} [/tex]=0

12 yd. 3 yd. 9 yd. 6 yd. Find the area of the shape. 39 square yards 56 square yards 72 square yards 106 square yards​

Answers

It it was a whole rectangle: 12 x 9 = 108 square yards

Subtract the cut out area: 6 x (9-3) = 6 x 6 = 36 square yards

Total area = 108 - 36 = 72 square yards

Please someone help me!!!!:)

Answers

Answer:

275.4cm

Step-by-step explanation:

A = pi*r^2

r = 9

A = 3.14 * 9^2

A = 3.14 * 81

A = 275.4

Hope this helps!

please show work, thanks ​

Answers

Answer:

4) 1400 [tex]in^3[/tex]

5) 304[tex]\Pi[/tex] or 954.56[tex]yd^3[/tex]

6) 315 [tex]ft^2[/tex]

Step-by-step explanation:

[tex]4)[/tex]

[tex]V = \frac{lwh}{3} = \frac{20*20*10.5}{3} = \frac{4200}{3} = 1400[/tex]

[tex]5)[/tex]

[tex]A = \Pi(\frac{D}{2})^2 = \Pi(\frac{8}{2})^2 = \Pi*4^2 = 16\Pi[/tex]

[tex]V = A * h = 16\Pi * 19 = 304\Pi = 304 * 3.14 = 954.56[/tex]

[tex]6)[/tex]

[tex]h^2 = 8^2 + 8^2 => h^2 = 64 + 64 = 128 => h =\sqrt{128}[/tex]

[tex]A_1 = 2(\frac{8*\sqrt{128}}{2}) = 8*\sqrt{128} = 32 = 90.5[/tex]

[tex]A_2 = 2(14 * 8) = 2*112 = 224[/tex]

[tex]A = A_1 + A_2 = 91 + 224 = 315[/tex]

Can someone help with this question

Answers

I think its is C beacuse it makes the most sence but D is incorrect
The answer is D since she has 9 rings and 4 are gold the rest is N

3) Find the percent of each number
38% of 50=
27% 300=
60% 75=​

Answers

Answer:19, 81, 45

Step-by-step explanation:

pls give me a real answer and the correct one if u try to be a bot ill report you

Answers

Answer:

The value of expression 7m - 6 is 60

Step-by-step explanation:

Given expression;

7m - 6

The value of m = 8

Find:

The value of expression 7m - 6

Computation:

in given expression 7m - 6 , 7 and 6 are constant and m is a variable

Given that value of variable m is 8.

So, by putting value of variable m in the given expression.

7m - 6

7(8) - 6

56 - 6

60

The value of expression 7m - 6 is 60

Find the fourth proportional of 5,9,4

Answers

Answer:

let

Step-by-step explanation:

let the third proportion be x

Since 5,9,4,x

5.x=9.4

5x=36

x=36/5

x=7.2

answer

5. (MGSE9-12.A.CED.2, MGSE9-12.F.BF.1) Which equation is equivalent to f(x) =
-3(x - 2)2 + 14?
A. f(x) = -3x2 + 2
B. f(x) -3x² +26
*C. f(x) = -3x2 - 4x + 18
D. f(x) = -3x2 + 12x + 2

Answers

The answer to the problem is C

Which of the following statements is true?

Answers

Answer:

C is correct both have 7 as y intercept

Answer:

Situation 1 has a greater slope I believe

It might be C also.

Correct me if i'm wrong.

Help wit my math im struggling n ion understand

Answers

Answer:

y<-3/2x+1

Step-by-step explanation:

PLEASE SOMEONE HELP IM SO CLOSE TO BEING DONE FOR THE YEAR
NO LINKS OR FILES

Answers

Answer:

Step-by-step explanation:

The negative out front only tells us which way the parabola will open. That means that the first one will open upside down, since it's got a negative out front. The value of the number that serves as the leading coefficient (the number stuck to the x-squared) determines how steep or wide-open the parabola's shape is. The leading coefficient in the first one is a 1, so it opens up exactly as wide as its parent graph does. The leading coefficient in the second one, a 2, means that the parabola will be skinnier or narrower than its parent. If the leading coefficient is greater than 1, the parabola will be narrower than its parent; if the leading coefficient is greater than 0 but less than 1, the parabola will open wider than its parent.

Other Questions
When Avani goes bowling, her scores are normally distributed with a mean of 145 and a standard deviation of 12. Using the empirical rule, determine the interval that would represent the middle 68% of the scores of all the games that Avani bowls. Which of the following sentences is an example of a complex sentence?(A): The rain washed out the morning soccer games, but the afternoon games were still held.(B): After winning the baseball tournament, the team went out for pizza to celebrate.(C): The marching band competed in both the parade and field competitions.(D): My alarm clock came unplugged in the night, so I was late for school. Olga's Company has a sales budget for next month of $150,000. Cost of goods sold is expected to be 40 percent of sales. All goods are purchased in the month used and paid for in the month following purchase. The beginning inventory of merchandise is $5,000, and an ending inventory of $6,000 is desired. Beginning accounts payable is $38,000. The cost of goods sold for next month is expected to be a.$60,000. b.$40,000. c.$89,000. d.$90,000. From what blood vessel does the blood that flows through thegrafted blood vessel come? Help me out !!!!!!!!!! Babatunde draws a drinking glass on graph paper using the scale shown below. The glass has a length of 888 units in the drawing.A drinking glass on graph paper. An 8-unit long line is labeled, "height." A 2-unit long scale is labeled, "2.5 centimeters." When the ball is at rest, what forces are acting on it? len2. Demetri wakes up at 9:15. It takes him35 minutes to fold 4 loads of laundry,35 minutes to bathe the dog, 45 minutesto bake brownies, and 1 hour to mow thelawn. After he finishes all of his chores,he sits down to rest. What time doesDemetri rest? help asap!why social media is harmful?i need need 5 disadvantages Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.Match the values with the statistical measures for these data points.34, 37, 39, 32, 48, 45, 53, 62, 58, 61, 60, 4146.562345948603238upper quartilearrowRightmaximumarrowRightminimumarrowRightlower quartilearrowRightmedianarrowRight what os the full form of cpu Basketball was developed so that athletes would have a sport to play during the _________.A. FallB. WinterC. SpringD. Summer : In your own words, define the following terms. GREEN HOUSE EFFECT What is the volume. Round to the nearest hundredth if necessary. HELP ASAP!!!!25 POINTS!!!!!In Act 2, Scene 2, Lines 1-25, Romeo gives a long speech while observing Juliet onstage and admiring her beauty. This is an example of: Monologue Read the last stanza of Robert Frost's poem "The Road Not Taken." Why is it significant that the two roads diverged?I shall be telling this with a sighSomewhere ages and ages hence:Two roads diverged in a wood, and I-I took the one less traveled by,And that has made all the difference.from "The Road Not Taken"by Robert Frost. The speaker is recalling, "with a sigh," how difficult it had been for him to choose the more traveled or the less trathe two roads. The forked road is a metaphor for the inherent duality in the natural world.OB. One of the forks in the road represents the speaker in his youth when he chose a road; the other stands for the sp-"ages and ages hence." The forked road is a metaphor for the many contradictions found in nature.OC. The speaker is relieved that he chose the road of moral living over one of temptation and ruin, which would have cothe other path.ODThe speaker is imagining what it might be like to describe his choice of a life path after he has taken that path to coend.reserved. drag each expression to show whether it is equivalent to 3 time times 9 or to 2x3x9 formula of circumference of a circle How do I know when to use por o para in a sentence? Can I have a summary? Ill mark brainliest Why were World War I war bonds important to the war effort?A.They ensured long-term commitments from soldiers who would fight.B.They served as a source of cheap manufacturing labor.C.They provided the government with excellent generals and commanders.D.They gave the government a source of income to help fund the war effort.