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

Answers

Answer 1
there are different negatives and positives
Answer 2

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 <>


Related Questions

An architect measures a beam to be 96.55 centimeters long, with an accuracy of plus or minus 0.02 centimeter. Which equation can be used to find the limits of the actual length of the beam? |x−96.55|=0.02start absolute value x minus 96 point 5 5 end absolute value is equal to 0 point 0 2 |96.55−0.02|=xstart absolute value 96 point 5 5 minus 0 point 0 2 end absolute value is equal to x |x+96.55|=0.02start absolute value x plus 96 point 5 5 end absolute value is equal to 0 point 0 2 |96.55+0.02|=x

Answers

Answer:

|96.55−0.02|= x

|96.55+0.02|=x

Step-by-step explanation:

Given that:

Measured length of beam = 96.55 cm

Measurement accuracy = plus or minus (± 0.02cm)

Limits of actual length of the beam:

Let limit of actual length = x

Lower limit :

|measured length - accuracy| = x

|96.55 - 0.02| = x

96.53) x

Upper limit :

|measured length + accuracy| = x

|96.55 + 0.02| = x

96.57 = x

Josh is trying to find the least common multiple (LCM) of 6 and 8. His work is shown at the right. What is Josh's mistake?
Explain how to find the correct LCM of 6 and 8.

Answers

24 because that’s the first multiple they both share

Answer: C is the valid answer to the mistake part

Step-by-step explanation:

6: 2x 3

8: 2x 2 x 2

all together: 2x2x2x2x3 = 48

They were finding the prime factorization and what they were trying to find was the lcm.

Write an  equation of the line that passes through please (2, -2) and is parallel to line y=3x+9

Answers

Answer: y=3x-8

Step-by-step explanation:

To find the parallel line, you know that the slope must stay the same. If the slope is different, the graphs will touch at one point. This goes against parallel lines as they NEVER touch or cross.

y=3x+b

We can use the given point to find the y-intercept.

-2=3(2)+b             [multiply]

-2=6+b                  [subtract both sides by 6]

b=-8

Now that we have found the y-intercept, we can finish our equation.

y=3x-8

7.6g of sugar is needed for every cake made. How much sugar is needed for 10 cakes?

Answers

Answer:76

Step-by-step explanation: The answer is 76 because if you multiply 7.6 by 10 you shall receive 76 cakes.

Is 4 a solution of 5m + 7 = -3? Justify your . answer.​

Answers

Answer:

The equality is false because one side is positive and the other side negative.

Step-by-step explanation:

5(4)+7        

Multiply the numbers 4 and 5

20

20+7

add the numbers 20 and 7

27[tex]\neq[/tex]-3

so the number 4 is not the solution


10% of £26 is equal to x% of £52. Calculate the value of x.

Answers

Answer:

5

Step-by-step explanation:

26 × 10 ÷ 100 = 52 · x ÷ 100

260 = 52 · x

x = 5

Subtract-3 2/7- (-5/7)

PLEASE HELP

Answers

Answer:

4

Step-by-step explanation:

[tex]3\frac{2}{7}-(-\frac{5}{7} )\\\\=3\frac{2}{7}+\frac{5}{7}\\\\=3+\frac{2}{7}+\frac{5}{7}\\\\=3+\frac{2+5}{7}\\\\=3+\frac{7}{7}\\\\=3+1\\\\=4[/tex]

Evaluate the expression for c = –1.4.
Write your answer as a decimal or whole number.
–21c2 =

Answers

Answer:

the answer for that equation is 58.8

Answer:

-41.16

Step-by-step explanation:

c = -1.4

-21c²

-21(-1.4)²

-21(1.96)

-41.16

what is the value of x​

Answers

Answer:

[tex]45[/tex] degrees

Step-by-step explanation:

Angles on a straight line add up to 180 degrees.

Thus, [tex]x+3x=180[/tex]

[tex]4x=180[/tex]

Divide both sides by 4:

[tex]\frac{4x}{x} =\frac{180}{4}[/tex]

[tex]x=45[/tex]

8=16+(y-1)
how do i solve this?

Answers

Answer:

y=-7 :)

Step-by-step explanation:

remove the parentheses

8=16+y-1

subtract the numbers

8=15+y

move variable to the left-hand side and change it's sign

-y=15-8

subtract the numbers

-y=7

change the sides on both sides of the equation

y=-7

hope it help <3

Answer:

y=2

Step-by-step explanation:

8= 16y + 16

16-8= 16y

8= 16y

y= 2

eeeeeeee if u can answer this i will give u brainly c:

Answers

Between each point of "5" there are 10 little squares in between and each number passes every 2 little squares. So we can use this to solve the questions.

Part A:

Count all the pupils who scored "more" than 7 using the assumption we made above.

12 scored more than 7

Part B:

Since we know that 14 scored more the seven, count all of the pupils who scored 7 and less.

15 scored a seven or less.

Add both numbers.

12 + 15 = 27 total pupils

Part C:

The assumption we had to make was to count each two little squares that represent one pupil to find the answer for Part B.

Best of Luck!

Answer:

the person above is 100% right

Step-by-step explanation:

What is 4x+3>15 inequalities

Answers

Answer: x>3

Step-by-step explanation: 4x+3-3>15-3

    4x>12

4x/4>12/4

=x>3

what are the multiples of 3

Answers

3,6,9,12 and so on yeahhhh

Answer:

3,6,9,12,etc

Step-by-step explanation:

In math, a multiple is the product of any quantity and an integer. In other words, for the quantities a and b, we say that b is a multiple of a if b = na for some integer n, which is called the multiplier. If a is not zero, this is equivalent to saying that b/a is an integer. 

What is the slope of a line that is perpendicular to the graphed line?

Answers

Answer:

2

Step-by-step explanation:

To find the slope of the graphed line, you take two points. I have chosen (0, 4) and (8, 0)

The formula of a slope is (y value of second point [tex]-y[/tex] value of first point) divided by (x value of second point [tex]-x[/tex] value of first point):

[tex]\frac{0-4}{8-0} =-\frac{1}{2}[/tex]

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

The slope for a perpendicular line is 2.

What is a common factor of 12x 2 − 5x − 3 and 6x 2 − x − 1 ?

Answers

Answer:

The common factor is (3x+1).

4d - p = m
Solve for d

Answers

Answer:

d=(m+p)/4

Step-by-step explanation:

The given equation solved for d as d=(m+p)/4.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

The given equation is 4d-p=m.

The given equation can be solved as

4d=m+p

Therefore, the given equation solved for d as d=(m+p)/4.

To learn more about an equation visit:

https://brainly.com/question/14686792.

#SPJ2

2 and 3 fiths times 5/6 express youre answer in the simplist form

Answers

Answer:

2 and 1/6, hope this helps :)

Please Help 10 Points

Answers

Answer:

-2x^2-6x-15

Step-by-step explanation:

Given g(x) = 3x+3, find g(6)

Answers

Answer:

g(6)=21

Step-by-step explanation:

Given g(x)= 3x+3, Find g(6)

1. Replace g(x) with g(6), and x with 6. The equation will now look like this: g(6)=3(6)+3

2. Multiply 3 and 6, to equal 18. The equation will now look like this: g(6)=18+3

3. Add 18 and 3 to equal 21. The Answer is g(6)=21

Simplify this i need help

Answers

Answer:

Step-by-step explanation:

√2x(7 + √2x)

7√2x + √2x ·√2x

7√2x + 2x

or

2x + 7√2x

A is the answer

How many inches are in 1 mile? (5280ft = 1mi; 12in = 1ft)
63660in
66330in
63360in
63066in
Sign out
6:10

Answers

1 mile * 5280 ft * 12 in = 63360 in

There are 63360 inches in one mile

Answer:

63360

Step-by-step explanation:

5280 × 12 = 63360

If RS = 34 and QS = 72, find QR.

Answers

Answer:

106 you have to add both values and i did add using my calculator and it was 106

Step-by-step explanation:

PQ= 2x
RQ=3x+1
What is the value of x

Answers

Answer:

Boom boom eat my but cheeks

Step-by-step explanation:

A 3-gallon tub of ice cream yields about 90 scoops of ice cream. There are roughly 3785 cubic centimeters in 1 gallon. Determine the radius of each scoop, to the nearest tenth.

Answers

Answer:

The radius of the scoop is r = 3.1 cm

Step-by-step explanation:

Since 3 gallons yields 90 scoops, and 1 gallon = 3785 cm³.

3 gallons = 3 × 3785 cm³ =  11355 cm³

So we have 11355 cm³ in 3 gallons which is also the volume of 90 scoops.

Since 90 scoops = 11355 cm³, then

1 scoop = 11355 cm³/90 = 126.2 cm³

Now, if each scoop is a sphere, the volume is given by V = 4πr³/3 where r is the radius of the scoop. Since we need to find the radius of the scoop, r, making r subject of the formula, we have

r = ∛(3V/4π)

Substituting V = 126.2 cm³, we have

r = ∛(3× 126.2 cm³/4π)

= ∛(378.6 cm³/12.57)

= ∛30.13 cm³

= 3.1 cm

So, the radius of the scoop is r = 3.1 cm

Pam received $125 for graduation and spend $8 of it a week. How many weeks can she do this
and still have more than $20 left?

Answers

Answer:

13 weeks

Step-by-step explanation:

8×13=104

125-104=21$

help please!!!
the volleyball boosters sell bags of popcorn during the varsity matches to raise money for new uniforms. each bag of popcorn costs $3

Answers

The dependent variable depends on the independent do depending on how many bags you buy, the price changes so for 5 bags the price is $15 and for 10 bags the price is $30

(z + 3)2
Draw me an area that shows the expression

Answers

Answer: 2z + 6

Step-by-step explanation: Distribute the 2 to z and 3.

can you please simplify -2x-8x

Answers

Answer:

- 10x

Step-by-step explanation:

Step 1:

-2x - 8x

Answer:

- 10x

Hope This Helps :)

evaluate each expression.
Example: Evaluate 10 increased by 8
Answer: 18


Evaluate: 20 decreased by 5

Answers

Answer:

15

Step-by-step explanation:if you take a way five from 20 you get 15 because 20-5 is 15

if you start at 1 and go to twenty 5 before that is 15

USE ESTIMATION Mr. Lycan is considering buying clay from two art supply companies. Company A sells 50-pound containers of clay for $24, plus $42 to ship the total order. Company B sells the same clay for $28, plus $25 to ship the total order.

Format
company A: y = ( ) x + ( )
Company B: y = ( ) x + ( )

Answers

Answer:

y=$24x+$42 A

y=$28x×$25 B

The required equations of Lycan buying clay from company A and company B are

A  : y = 24x + 42

B  : y = 28x + 25

What is an expression?

Expression in mathematic is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.  

Mr. Lycan is considering buying clay from two art supply companies

and here, it is given that Company A sells x= 50-pound containers of clay for $24, plus $42 to ship the total order which can be written in linear equation as :

y = 24x + 42

and Company B sells the same clay (x= 50 pound )for $28, plus $25 to ship the total order which can be written in linear equation as :

y = 28x + 25

Therefore, the required equations of Lycan buying clay from company A and company B are

A  : y = 24x + 42

B  : y = 28x + 25

check and know more about equation of line here :

https://brainly.com/question/21511618

#SPJ2

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