Explain how solving -7y > 161 is different from solving 7y > -161.

Answers

Answer 1

Answer:

Sample response: Both inequalities use the division property to isolate the variable, y. When you divide by a negative number, like –7, you must reverse the direction of the inequality sign. When you divide by a positive number, like 7, the inequality sign stays the same. The solution to the first inequality is y > -23, and the solution to the second inequality is y <>

Step-by-step explanation:

Answer 2

Answer:

This is the sample response: Both inequalities use the division property to isolate the variable, y. When you divide by a negative number, like –7, you must reverse the direction of the inequality sign. When you divide by a positive number, like 7, the inequality sign stays the same. The solution to the first inequality is y > -23, and the solution to the second inequality is y <>.


Related Questions







it’s algebra can u helpppp lolsss

Answers

6z- 6
Just do the distributive property
I know it’s confusing at first but don’t worry! I’m sure you’ll do great!
Hope this helps!

Answer:

6z - 6

Step-by-step explanation:

When you expand you are removing brackets. This means you multiply the outer number by the ones inside thus:

2(3z-3)

2 times 3z is 6z .

2 times 3 is 6.

So the answer is 6z - 6.

HOPE THIS HELPED

I need help with graphs

Answers

Answer:

Ok

Step-by-step explanation:

I’ll help u

i could help but i don’t see a picture of the graph you would be needing help with.

guys please help/ no answers from google!
it's for tomorrow

Answers

Answer:

Length --> x

Width --> y

Perimeter of a rectangle --> 2x + 2y

The length is always 4 cm more than double the width

x - 4 = 2y

y = (x-4)/2

x = 2y + 4

a. The polynomial equation to give the perimeter --> 2(2y+4) + 2((x-4)/2)

b. x - 4 = 2·6 --> x - 4 = 12 --> x = 16

  Perimeter --> 2·16 + 2·6 = 44 cm

Plz help, im struggling >:|

Write using algebra.
Jimmy ran m miles in t minutes. What was his speed?

Answers

Answer:

150

Step-by-step explanation:

r150 naka cdi lang HAHAHAHAHAHA

Answer:

Lets say S is speed

S= m/ t

m/t would give us his speed in miles per minute.

Rob can lift less than 135 pounds at the weight room. There is already 48 pounds of weights on the bar. Write an inequality that shows the additional weight that Rob can add, w, without being over his maximum.

Answers

Answer:

[tex]x + 46 < 135[/tex]

Step-by-step explanation:

Given

[tex]Initial\ Weight = 48lb[/tex]

He can lift less than 135 implies that, his maximum is:

[tex]Total < 135[/tex]

Required

Determine the additional weight

Let the additional weight be x

Such that

[tex]Total = x + Initial\ Weight[/tex]

[tex]Total = x + 46[/tex]

Substitute x + 46 for Total in [tex]Total < 135[/tex]

[tex]x + 46 < 135[/tex]

Hence, the inequality that describes the scenario is: [tex]x + 46 < 135[/tex]

What is the quotient of (3x^4 – 4x^2 + 8x – 1) ÷ (x – 2)

Answers

Answer:

2      3    0   -4    8

+            6    12   16

       3    6     8    24

A:3x^3+6x^2+8x+24/x-2

Answer:

(3x^4-4x^2+8x-1)÷(x-2)

solve for b and simplify -17=-3/2b

Answers

Answer:

b = 34/3

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDASEquality Properties

Step-by-step explanation:

Step 1: Define equation

-17 = -3/2b

Step 2: Solve for b

Rewrite:                                       -3/2b = -17Divide both sides by -3/2:          b = 34/3

Step 3: Check

Plug in b to verify it's a solution.

Substitute:                    -17 = -3/2(34/3)Multiply:                        -17 = -17

Brianna wants to use a pontoon boat on Saturday at the lake. She has exactly
$200 to spend on the boat rental. The rental is $30 an hour plus a $80 deposit.
How many hours can she rent the pontoon boat for? Create and solve an
equation for this situation.

Answers

Answer:

Step-by-step explanation:

She has 200

80 deposit - 200= 120 left to spend

80+30h=200

If she has 120 left to spend at 30 hr, she could have the boat for 4 hrs

80+30h=200 subtract 80 from both sides

30h=120 divide by the 30

h=4

Skylar has a smart phone data plan that costs $50 per month that includes 7 GB of data, but will charge an extra $30 per GB over the included amount. How much would Skylar have to pay in a month where she used 5 GB over the limit? How much would Skylar have to pay in a month where she used went over by

Answers

i have concluded the answer is a
it would be 200 if she used 5 over the limit. 30 x 5 = 150 150+50=200


For f(x) = -5x +9, find f'(15)

Answers

f(x) =-5x+9
f(x) =-5(15)+9
f(x) =- 75+9
f(x)=-66
your answer is -66 :)

find the circumcenter

Answers

Answer: (0, -2)

Step-by-step explanation:

HELP MEEEEEEEE PMEASE
In order!!!

Answers

Step-by-step explanation:

The value of all the angles in a triangle add up to 180.

So to find x do 180-(66+52)

The angle opposite of x is the same value as x

X+E or X+Z are both equal to 180.

Please help it's four am and I really hate math

Answers

Answer:

A

Step-by-step explanation:

number books = n

2xn / 15

help me please and thank you​

Answers

the answer is x^9 also use photmath they explain why and give the the answer for equations like this

А ____________ is a comparison of two quantities by division.

A. Unit Rate
B. Rate
C. Ratio​

Answers

Answer:

Rate

Step-by-step explanation:

When you have two quantities and place one over the other, i.e. miles/hour, you get a rate, such as a rate of change .

What type of number is: 5? What type of number is 0?

Answers

Answer:

0 is rational

5 rational so u are correct

Step-by-step explanation:

Step-by-step explanation:

0 is Rational

5 is Rational is you are correct

How to simplify 7 - 9x -15 + 12x into an expression

Answers

3x - 8

bdjwysksuxvsjahajhx

Answer:

Simplified is 3x - 8

Step-by-step explanation:

First, put the like terms together, so rearrange that equation to 12x - 9x - 15 + 7. Then from there you subtract 9x from 12x which is 2x and add 7 to negative 15, which is -8.

y=100-(1.25)
is it exponential growth or decay ?
what’s the initial value ?
what is the rate of growth or rate of decay ?

Answers

Answer:

You should probably double check the problem. The equation you have is just 100-1.25

You bought 15 apples and 2 bags of Carmel for $16.00. The bags of caramel costs $5.35. How much does each apple cost? Write an equation.

Answers

Answer:

5.35*2+x=16 and the answer is $.35

Step-by-step explanation:

5.35*2+x=16

10.70+x=16

-10.70     -10.70

x=5.30

5.30/15= about .35

Answer

$12.65/15

Step-by-step explanation:

$16.00-$5.35=$12.65

This means that $12.65/15 is the cost of each apple.

Find the slope of the line determined by each pair of points: (-1,3), (-6,-4)

Answers

Answer:

[tex]m=\frac{7}{5}[/tex]

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDAS

Alg I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Point (-1, 3)

Point (-6, -4)

Step 2: Find slope m

Substitute:                  [tex]m=\frac{-4-3}{-6-(-1)}[/tex]Simplify:                      [tex]m=\frac{-4-3}{-6+1}[/tex]Subtract/Add:             [tex]m=\frac{-7}{-5}[/tex]Simplify:                      [tex]m=\frac{7}{5}[/tex]

What is the constant of variation, k, for the table?

Answers

k = -2/3

Explanation:

Where is the function decreasing?

A.-3 < x < 1

B.-∞< x < -3 and 1 < x < 4

C. 1 < x < 4

D.-∞< x < 1

Answers

Answer:

A. -3 < x < 1

General Formulas and Concepts:

Reading a Cartesian PlaneAnalyzing a Graph

Step-by-step explanation:

"When is the function decreasing" is saying when the graph is going down.

Calculus-wise, we are finding when the slope of the tangent line is negative.

From the graph, we see it decreasing from -3 to 1. Everywhere else is increasing.

Therefore, our interval decreasing is from (-3, 1).

PLZ help fast I need this I’ll give brainliest

Use the drop-down menus to complete each statement.
The equations x = 1 + 3t and y =-1 + 6t describe a line with a slope of
The equations x = 5 cost and y = 5 sint describe a
X2
A hyperbola with equation
.
= 1 can be parametrized similar to the circle and ellipse.
62
q?
if x = a sec t is one of the parmetric equations, the other will be y =

Answers

Answer:

1. 2

2.circle

3.b tan t

Step-by-step explanation:

The slope of the equations x = 1 + 3t and y = -1 + 6t is 6, the equations x = 5 cos t and y = 5 sin t describe a circle and if x = a sec t is one of the parametric equations, the other will be y =b tan t

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

The equation x = 1 + 3t and y = -1 + 6t can be expressed in the form y = mx + b, where m is the slope and b is the y-intercept.

In this case, m = 6, which is the slope of the line.

The equations x = 5 cos t and y = 5 sin t describe a circle.

These equations define the parametric form of a circle with a radius of 5 centered at the origin.

if x = a sec t is one of the parametric equations, the other will be y =b tan t

Hence, the slope of the equations x = 1 + 3t and y = -1 + 6t is 6, the equations x = 5 cos t and y = 5 sin t describe a circle and if x = a sec t is one of the parametric equations, the other will be y =b tan t

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ2

HELP ME ASAP! TYSMMM

Ten family size bags of chips cost $15.00. What is the cost per bag? How much would 11 bags cost?

Answers

Answer:

Each bag is $1.50. 11 bags would cost $16.50.

Answer:

Each bag would cost 1.50$.

15.00$ / 10 = 1.5$

1.5 = 1.50

______________________

11 bags:

1.5 x 11 = 16.5

16.5 = 16.50$

11 bags would cost 16.50$

please help i don't understand this

Answers

Answer:

Sorry.........................

factorise the following:
[tex]{3x}^{2} + 5x - 12[/tex]

Answers

Answer:

(x + 3)(3x - 4)

Step-by-step explanation:

Given

3x² + 5x - 12

Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 3 × - 12 = - 36 and sum = + 5

The factors are + 9 and - 4

Use these factors to split the x- term

3x² + 9x - 4x - 12 ( factor first/second and third/fourth terms )

= 3x(x + 3) - 4(x + 3) ← factor out (x + 3) from each term

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

Thus

3x² + 5x - 12 = (x + 3)(3x - 4) ← in factored form

Jamie buys a ring that is priced at $900. What is the sales price of the ring, if Jamie uses the coupon below?



A.$885

B.$15

C.$765

D.$135

Answers

Answer:

D=  $135

Step-by-step explanation:

We have to use proportions in order to figure this out. We know that 15% is equal to 15/100.

work:

15/100=x/900.

We cross multiply so its 13,500/100. This is not the answer so we divide which equals to $135

Answer is D. $135
Explanation:^

Please help will make brainiest !!

Answers

Answer:

CB = 13.75

Step-by-step explanation:

Since we know that A, B, and C are the midpoint of the sides, we know that line CB is proportional to QR (by 2)..

So, 27.5/2 = 13.75

Find y, at and tu I need help please help

Answers

Answer:

there is no picture... but i will try my best to help you if you post picture in another question

i can’t see the picture, i wish i could help :(

What is the value of k?

Answers

Answer:

k =5

Step-by-step explanation:

triangle =180

180-115=65

65-10-5=50

50/ (4+6)= 5

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