Mathematics High School

Danny solved the inequality - 8x > 56 and got x>-7. Is this correct and if not, what mistake did Danny
make. Select your decision and reason from the box below.
Is Danny correct? →
YES
OR
NO
56 divided by -8 is not-7
If no, what mistake did Danny make? →
Danny did not reverse the symbol
It should be 7 not-7

Answers

Answer 1

Answer:

Danny did not reverse the symbol.

Hence, the correct answer is: [tex]x<-7[/tex]

Step-by-step explanation:

Given the inequality

[tex]- 8x > 56[/tex]

We know that when we multiply both sides by -1, the 'inequality' gets reverse.

i.e.

[tex]\left(-8x\right)\left(-1\right)<56\left(-1\right)[/tex]

[tex]8x<-56[/tex]

Divide both sides by 8

[tex]\frac{8x}{8}<\frac{-56}{8}[/tex]

[tex]x<-7[/tex]

Therefore, Danny did not reverse the symbol.

Hence, the correct answer is: [tex]x<-7[/tex]

Related Questions

D 2. Choose the correct answer to 2,412 : 25.
96 R12
96
97
95 R37

Answers

Answer:

Step-by-step explanation:

qwik maths

Select all of the equations that can be used to find the area of a circle
A A=π.π

B A=π d/2

C A=π (d/2) x (d/2)

D A=πd

E A=π.r.r

F A=2πr

Answers

Answer:

A C F

Step-by-step explanation:

What x value solves the equation? 3x - 5 = 1

Answers

Answer:

Step-by-step explanation:

Answer:

x equals 2

Step-by-step explanation:

‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎ ‏‏‎

I need help with this

Answers

Answer:

y=x-8

Step-by-step explanation:

Answer:

y=x-8

Step-by-step explanation:

What is the range of the graph?
a. –4 < X < 5
b. -4 C. -1 d. -1

Answers

the correct answer would be 4.

The answer I got was 4

Write an explicit formula for an, the n
th
term of the sequence 4, 10, 16, ....
Answer: an =
Submit Answer

Answers

Answer:

[tex]t_{n}[/tex]=6n-2

Step-by-step explanation:

Joseph claims that a scatterplot in which the y-values increase as the x-values increase must have a linear association. Amy claims that the scatterplot could have a nonlinear association. Which statement about their claims is true?

Answers

Answer:

Amy is correct because a nonlinear association could increase along the whole data set, while being steeper in some parts than others. The scatterplot could be linear or nonlinear.

Step-by-step explanation:

I just took the quiz, I hope this helps :).

Amy's claim that the scatterplot could have a nonlinear association is true.

What is a scatter plot?

A scatter plot is a type of plot or mathematical diagram that uses Cartesian coordinates to display values for two variables for a given set of data.

It is explained below which one of them is correct:

Joesph claims that a scatterplot in which the y-values increase as the x-values increase must have a linear association.

This cannot be true, since the steepness at which the values of x and y could increase is not fixed. This means that it will not be linear.

Amy claims that the scatterplot could have a nonlinear association.

This is true. A scatterplot could have a linear association or non-linear association.

Therefore, we have found that Amy's claim that the scatterplot could have a nonlinear association is true.

Learn more about scatterplots here: https://brainly.com/question/6592115

#SPJ2

Help please with this question I will mark branliest

Answers

Answer:The pictures not that clear

Step-by-step explanation:

I cannot see the picture clearly

Solve by substitution.
-x + y = –14
2x – 3y = 33
([?],[ ]

Answers

First step try to get one of the to equal y then substitute it into the other equation and solve for x by combining like terms

How does the graph of y = 3 differ from y = 3x?

Answers

Answer/Step-by-step explanation:

The graph with y =3 tells you that the y variable is going to be a constant 3.

The graph with y = 3x tells you that y will climb 3 times per each x variable that is added.

the plane is 150 ft long the model is 20 in long what is the ratio of the length of the plane to the length of the model?

Answers

Answer:

9 to 1

Step-by-step explanation:

please, fill out the corresponding points

Answers

Answer:

dude did you watch the ole miss game last night

Step-by-step explanation:

Answer:

Step-by-step explanation:

When would Casey pay the same amount to be a member of either gym? How much would he pay?

Answers

Answer: After 6 Months Casey would have paid $450 at either gym.

Step-by-step explanation:

Since we're looking for these two gyms cost the same, we need to make the equation compare the two together:

35x + 240 = 75x (the 1st gym with a joining fee $240 and 35 monthly equals $75 monthly)

Subtract 35x from both sides:

35x - 35x + 240 = 75x - 35x

240 = 40x

Divide by 40:

240 / 40 = 6

6 = x

So they cost the same after 6 months

35 * 6+ 240 = 75 * 6

450 = 450

And you'll be spending $450 in total.

46% of what is 128?
A)278.3
B)58.9
C)5544
D)55.4

Answers

9514 1404 393

Answer:

A) 278.3

Step-by-step explanation:

Write your question as an equation and solve.

46% × what = 128

Divide by the coefficient of 'what':

what = 128/0.46 ≈ 278.3

2p + 8 = 20-P
2p + 8 + p = 20-p+p
3p + 8 = 20

what’s the value of p ?

Answers

the answer to p is 4

Answer:

p = 12

Step-by-step explanation:

Need help on this haha

Answers

Answer:

C. y=1/2x+3

Step-by-step explanation:

3 is the positive y-intercept

1 is the rise and 2 is the run

PLEASE ANSWERR ITS URGENTTTT!!!

Answers

Answer:

a) Recommended slope: 4, b) v = 24, c) h = 8.5

Step-by-step explanation:

h = 1 / 4 of v

Slope = rise / run

= v / (1 / 4) v

= 4

Therefore, the recommended slope of the ladder is 4.

h = 6

Therefore v equals 6 x 4 = 24 to satisfy the recommended slope.

v = 34

Therefore h equals 34 / 4 = 8.5 to satisfy the recommended slope.

the coefficient of xy in 6x2y2 is

Answers

Answer:

6 & 2

Step-by-step explanation:

6x2y2

So 6 is the coefficient of x because it is bonded to x

and 2 is the coefficient of y because it is bonded to y,

so the answer is 6 & 2

A chemist is using 349 milliliters of a solution of acid and water. If 19.8% of the solution is acid, how many milliliters of acid are there? Round your answer to the nearest tenth.

Answers

Answer: 69.1

because 19.8% of the solution is acid, there are: [tex]\frac{349}{100}.19,8=69,1[/tex] (milliliters of acid)

Step-by-step explanation:

someone please help.

Answers

Answer: This is what I think the answers are....

Hopefully this helps

Step-by-step explanation:

When Ingvar rides his bike, he travels 2,640 ft every 3 minutes. Today, he rode his bike for more than 3 minutes. Which phrase correctly describes the number of feet Ingvar traveled? A more than 2,640 ft
B 2,640 ft C less than 2,640 ft
D 880 ft

Answers

Answer:

Step-by-step explanation:

If he travels 2640 feet every 3 minutes and he travels for more than 3 minutes then hes traveled more than 2640 feet

calculate 20 hours into degrees

Answers

Answer:

jsjdbxbx bxbxbzv aí bsc

uhm yeah can i get a brain dump momment

Answers

Answer:

A-5

Step-by-step explanation:

35 has the common factors of 1, 5, 7, and 35 and 5 has the common factors are 1 and 5, and the greatest is 5, so the answer is 5.

Find the GFC of each set of numbers
300, 450

Answers

Answer:

The GCF is 150.

Step-by-step explanation:

hope this helps

The factors of 300 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300

The factors of 450 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 225, 450

Then the greatest common factor is 150.

Answer:

GFC: 150

Step-by-step explanation:

prime factorization of 300: 300 = 2 × 2 × 3 × 5 × 5

prime factorization of 450: 450 = 2 × 3 × 3 × 5 × 5

then multiply all the prime factors common to both numbers: GCF = 2 × 3 × 5 × 5

GCF = 150

Jerry pays $1.40 per gallon for premium gasoline. He spends $16.80 and wants
to know how many gallons he bought. Which equation models this situation?

Answers

12 gallons
$16.80/$1.40

Work out the missing numbers

Answers

a) -80
b) -60
c) 98
d) -54

Diego has 7 packs of markers. Each pack has x markers in it. After lin gives him 9 more markers, he has a total of 30 markers.

Answers

Answer: 3

Step-by-step explanation:

3 because if you subtract 30 by 9 it gives you 21. Divide 21 by 7 and you get 3 which means 3 markers

Laura spent ⅕ of her money on a new pocketbook and had $90 remaining. How much did she spend on her new pocketbook?

Answers

Answer:

$18

Step-by-step explanation:

90 x 1/5

90/5

Answer:

$22.50

Step-by-step explanation

90 is 80% (4/5) of what number (x)? So you do 90 times 100 = 9000 and 80 times x is 80x and then 9000 divided by 80 is 112.5 so she had 112.5 to begin with but she spent 1/5 so 112.5 divided by 5 is 22.5 so 1 fifth is 22.5

Find the slope of the line that passes through the points (2, 1) and (3, 2).

Answers

Answer: M = 1

Step-by-step explanation:

Use the slope formula to find the slope

Answer:

slope=1

Step-by-step explanation:

So the equation to find slope is m=y²-y¹

-------

x²- x¹

Using that equation, we take 2= y² and 1= y¹ also 3= x² and 2= x¹

2-1 = 1

3-2 = 1

so the answer is 1!

O no I accidentally made this 20 points

Answers

Answer:

Step-by-step explanation:

nonproportional. doesn't pass through the origin, so it's not proportional

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