PLEASE HURRY

Andrew solved the following inequality, and his work is shown below:

−4(x + 8) + 25 ≤ −2 + 1(x − 50)
−4x − 32 + 25 ≤ −2 + 1x − 50
−4x − 7 ≤ 1x − 52
−5x ≤ −45
x ≤ 9

What mistake did Andrew make in solving the inequality? (2 points)

Question 3 options:

1)

He subtracted 1x from both sides when he should have added 4x.

2)

When dividing by −5, he did not change the ≤ to ≥.

3)

He added 7 to both sides when he should have added 52.

4)

He did not make a mistake.

Answers

Answer 1

Answer:

Answer 2) When dividing by -5, he did not change the [tex]\leq[/tex] to [tex]\geq[/tex].

Step-by-step explanation:

If you divide or multiply a negative, you ALWAYS change the sign to its opposite.

Hope this helps! :)


Related Questions

Seventeen less than one-thrid of a number y.​

Answers

Answer:

In the explanation. :)

Step-by-step explanation:

1/3x-17y

Hope this helps. Have a great day!

-3 2/5 - 5/6
I dont just need the answer. I wanna know how to do it.​

Answers

Answer:

so do you mean the step by step??

Answer:

- 4 ⁷/₃₀

Step-by-step explanation:

= -3 2/5 - 5/6

= - 17/5 - 5/6  ---- LCM of 5 & 6 is 30

= _  17 * 6   _   5 * 5  

       5 * 6        6 * 5

=  _  102 - 25

            30

=  _ 127

        30

=  4 ⁷/₃₀

Please Answer!!
2t+6<10 or -t+7≤2

Answers

Answer:

the other one is t >= 5. hope this helps


Need help ASAP!!


How many points do you need to know to draw the graph of a direct proportionality? which are?

Answers

54 square feet
9x6 = 54
B x h = a
Base x height = area

Two species of birds are being compared. Species A can fly 18.9 miles in 42 minutes, while species B can fly 20.3 miles in 58 minutes. Which species is slower, and at what speed can it fly?

Answers

Answer:

all i know is species A is faster, but i dont really feel like seeing witch one goes how much slower or faster

Step-by-step explanation:

ok so if you use the unit speed, you should get a higher one for species A.

plz help this is due soon​

Answers

Answer:

put a dot on the following points ( -1, -3) (0, -2) (1, -1) and (2, 0)

Step-by-step explanation:

-4p+(-6p) combine like terms to create an equivalent expression

Answers

Answer:

-10p

Step-by-step explanation:

-4p+(-6p)            for me I like to think of the negative or subtraction sign                

                          overpowering the positive or addition sign

so in this case

-4p-6p

then since the variable p is the same -4-6 is -10

the end result is -10p

what is (x+3)(x-3)(3x+2) expanded and simplified

Answers

Answer:

3x to the power of 3- 5x to the power of 2-16x+12

a) Find the value of 15 – 3 x 4​

Answers

Answer:

3

Step-by-step explanation:

order of operations so

15-(3x4)

15-12

3

PLS HELP WILL GIVE BRAINLIEST

Answers

I think it would be 30? I’m not sure about that one.. sorry

What is the equation of the line that passes through the point (-1,4) and has a slope of -5?​

Answers

Answer:

y = -5x + 4

Step-by-step explanation:

In the equation y = mx + b , m stands for slope and b stands for the y intercept. In the coordinates (-1,4) the y value is 4 meaning that it's your y-intercept. The slope is already given to you so just add the X.

Answer:

y = -5x - 1

Step-by-step explanation:

Since you have the slope and a given point you can use the point-slope formula to solve for the y-intercept formula.

Point slope formula = y - y = m(x - x)

m = -5    (-1, 4)

y - 4 = -5(x +1)

y - 4 = -5x - 5

y = -5x - 1

What Does C equal in



[tex]\sqrt{8c+4}[/tex]


Along with the answer, please provide an explanation on how to do the +4

Answers

square the entire thing which gets ride of the root so (8x+4)^2 now solve. 8x^2+4^2. 64x+16

Answer:

See below.

Step-by-step explanation:

We have the expression:

[tex]\sqrt{8c+4}[/tex]

And we want to determine the domain restrictions of the expression.

Remember that the radicand (expression under the square root) must always be positive or 0. This is because we can't take the square root of a negative (and the square root of 0 is just 0). So, to find the domain restrictions, we can write and solve for the following inequality:

[tex]8c+4\geq0[/tex]

This is saying (8c+4) must be greater than or equal to 0. In other words, it's positive or 0.

So, solve for c. Subtract 4 from both sides:

[tex]8c\geq-4[/tex]

Now, divide both sides by 8. This yields:

[tex]c\geq4/8\\c\geq -1/2[/tex]

So, our c must be greater than or equal to -1/2. If it is less than -1/2, we won't have a solution.

After a parade, a group of volunteers is helping to pick up the trash along a 2-mile stretch of a road.The group decides to divide the length of the road so that each volunteer is responsible for cleaning up equal-length sections.Find the length of a road section for each volunteer if there are 8 volunteers

Answers

Answer:

it is  .25                                                                                                                                             :)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~``

Answer:

0.08 mile or 422.4 feet

Step-by-step explanation:

Distance=2 miles

number of volunteers=25

Length for each volunteers

[tex]2\frac{2}{25} miles=0.08 mile\\[/tex]

= 422.4 feet (as mile =  5280 feet)

0.08 mile or 422.4 feet

Two numbers are in the ratio 6:5. if the smaller number is 30 what is the bigger number?

Answers

Answer:

the bigger number 6 is 36

Which of the binomials below is a factor of this trinomial? 4x2 + 12x + 9
A. 2x-3
B. 2x-1
C. 2x+1
D. 2x+3​

Answers

Answer:

d-2x-3

Step-by-step explanation:

The factor of the trinomial will be (2x + 3) and (2x + 3). Then the correct option is D.

What is a factorization?

It is a method for dividing a polynomial into pieces that will be multiplied together. At this moment, the polynomial's value will be zero.

The trinomial is given below.

⇒ 4x² + 12x + 9

Then the factor of the trinomial will be

⇒ 4x² + 12x + 9

⇒ 4x² + 6x + 6x + 9

⇒ 2x(2x + 3) + 3(2x + 3)

⇒ (2x + 3)(2x + 3)

⇒ (2x + 3)²

Then the correct option is D.

More about the factorization link is given below.

https://brainly.com/question/6810544

#SPJ2

I need help to solve this math problem

12 yd = __ ft

Answers

Answer:

36 feet

Step-by-step explanation:

12inches =1 yard

Answer:

36 feet

Step-by-step explanation:

There are 3 feet in a yard, so all you have to do is multiply 12 by 3. 12x3=36

Have a great day!!! I hope this helps C:

help ASAP will give points​

Answers

Answer:

5/6

Step-by-step explanation:

1/2 = 3/6 because 1/2 x 3 = 3/6. 2/3 = 4/6 because 2/3 x 2 = 4/6. 3/6 plus 4/6 equals 7/6 or 1 and 1/6. 2 - 1 1/6 = 5/6.

Find the mean.
Z-score = -1.4
Standard Deviation: 7
x = 20

Answers

Answer:

9.6

Step-by-step explanation:

I need up with this assignment PICTURE

Answers

Answer:

These lines are linear lines.

Step-by-step explanation:

Linear lines are straight lines. We can determine if a line is linear in one of a few ways, three being:

By looking at the lines. If they are straight, then they are linear.

By looking at a graph. If there is a constant rate of change within the graph (between the points), then the line is linear. A constant rate of change is when something is changing at a constant, or not-changing number. For example, if the rate of change is 3 (+3 or -3), and never any other number, then the line is linear.

By solving the equation. For a line to be linear, it has to be able to fit in the slope-intercept form (y = mx + b) (without any exponents). If the equation does not work for the line, then the line is likely non-linear. A linear line may also have two expressions that are equal to each other. It's a little hard to see the entire second equation in the picture, but it appears to be 4x - 7. Meanwhile, the first equation is -2x + 5. Clearly, both lines are linear as they both fit in/follow the slope-intercept form. The m's are: -2 and 4, and the b's  are 5 and -7.

Dan invests £800 into his bank account. He receives 5% per year compound interest. How much will Dan have after 4 years? Give your answer to the nearest penny where appropriate.

Answers

Answer:

£972.41

Step-by-step explanation:

1 x 0.5 =1.05

1.05x 800 ^4= £972.405

rounded is  £972.41

Find the circumference and area

Answers

18.85 I hope this helps you :)
I think the answer is 18.85:)

0.4 = -9.8 -y + 2.8y

Answers

Answer: [tex]y=5.666667[/tex]   or   [tex]y=5 \frac{6}{9}[/tex] in fraction

Step-by-step explanation:

1. Simplify  -9.8-y+2.8y  to  -9.8+1.8y

0.4=-9.8+1.8y0.4=−9.8+1.8y

2. Regroup terms

0.4=1.8y-9.8

3. Add 9.8 to both sides.

0.4+9.8=1.8y

4. Simplify  0.4+9.8  to  10.2

10.2=1.8y

5. Divide both sides by 1.8

[tex]\frac{10.2}{1.8} =y\\[/tex]

6. Simplify [tex]\frac{10.2}{1.8\\}[/tex] to 5.666667

5.666667 = [tex]y[/tex]

7. Switch sides.

[tex]y=5.666667[/tex]

Hope this helps and can you please mark me brainliest because I just need 1 more brainliest to become expert:)

Answer:

[tex]y=\frac{17}{3}\\\\y =5\frac{2}{3}[/tex]

Step-by-step explanation:

[tex]0.4 = -9.8 -y + 2.8y\\\\Switch\:sides\\\\-9.8-y+2.8y=0.4\\\\\mathrm{Add\:similar\:elements:}\:-y+2.8y=1.8y\\\\-9.8+1.8y=0.4\\\\\mathrm{Multiply\:both\:sides\:by\:}10\\\\-9.8\times\:10+1.8y\times\:10=0.4\times\:10\\\\Refine\\\\-98+18y=4\\\\\mathrm{Add\:}98\mathrm{\:to\:both\:sides}\\\\-98+18y+98=4+98\\\\Simplify\\\\18y=102\\\\\mathrm{Divide\:both\:sides\:by\:}18\\\\\frac{18y}{18}=\frac{102}{18}\\\\Simplify\\\\y=\frac{17}{3}\\\\y =5\frac{2}{3}[/tex]

I get brain damage from these please help me. I need a detailed answer of how to do this as well

Answers

I can’t see the picture it’s blurry post it again

A car and a bus which are 280 miles apart are driving towards each other. The car is moving at 50 mph while the bus is moving at 55 mph. How long will it take them to meet?

Answers

Answer:

2.6667 hours

Step-by-step explanation:

Given that:

Distance between car and bus = 280 miles apart

What le moving towards each other ;

Speed of car = 55 mph

Speed of bus = 50 mph

Time it will take them to meet;

Time = distance / speed

Hence :

Total distance to be covered = 280 miles

Total speed = (55mph + 50 mph) = 105 mph

Hence ,

Time = 280 miles / 105 mph

Time = 2.667 hours

2 hours, (0.667 * 60 = 40.02

2 hours, 40 minutes

Answer:

2.6667

Step-by-step explanation:

Find the area of the shaded region.
Round to the nearest tenth.

Answers

Answer:

(Assuming they are both right triangles)

214.5 sq ft

Step-by-step explanation:

Area of a right triangle= leg×leg / 2

25×25 / 2 = 312.5

14×14 / 2 = 98

312.5-98= 214.5

Use >, <, or = to compare the expressions.

Answers

Answer:

-(∛2)³ =  (∛-2)³

(-√2)² >  -(√2)²

     2³ > -2³

    -2² < (-2)²

  ∛64 = √16

I hope this is the answer you're looking for. this took me a while so brainliest plz...

Answer:

=

>

>

<

=

Step-by-step explanation:

Which of the following is most likely the next step in the series?

Answers

Answer:

I believe it C

Step-by-step explanation:

Brainliest ??

Answer:

C

Step-by-step explanation:

I'd say C because:

The colors alternate between blue and red, so the next color is going to be red.At first, a vertical line was taken out, next a horizontal line was taken out, so next would be a vertical line being taken out.

It's all about patterns.

Can anybody do this for me? Please hurry

Answers

Number 1 is 16
Number 3 is 28

heolp ASAPPPPPPP!!!! Suppose three riders rode a total of 182 miles.


If they used a total of 13 horses, and rode each horse the same number of miles, how many miles did they ride before replacing each horse?
HELP NOW

They rode

__________miles before replacing each horse.

Answers

Answer:

14 miles

Step-by-step explanation:

You divide. 132/13

Which gives you 14. Every 14 miles, the riders replaced a horse.

So, They rode 14 miles before replacing each horse.

Hope this helps:)

Answer:

14 miles

Step-by-step explanation:

182/13 = 14 miles

Assuming each horse was only ridden once

then a total of 16 horses were ridden for a total of 182 miles

182 miles /13  horses  = 14  miles  horse

Of course, if each horse was ridden more than once before being replaced the distance between replacements could be reduced.

Note that the fact that there were 3 riders is irrelevant.

What is the value of the expression (x – 2y)(x + 2y) when x= 4 and y = 2?

Answers

Answer:

0

Step-by-step explanation:

To solve this, you first plug in the 4 and 2 where the x and y's go, making the expression (4 - 2(2))*(4 + 2(2)). Then you solve each parenthesis (below).

(4 - 2(2))*(4 + 2(2)).

(4 - 4)*(4 + 4).

0*8

0

Hope this helped! If you have any questions, feel free to message me :)

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