Sara says, "If you subtract 19 from my number and multiply the difference by - 2, the result is -4."
What is Sara's number?
Sara's number is

Answers

Answer 1
Her number is 27, I hope
Answer 2
I don’t know how you got 27 but that’s not right. Sara’s number is 21. Because this is the problem

X=Sara’s number
(19-x) • 2 = -4
38-2x = -4
To bring 38 to the other side subtract it
-2x = -4 -38
-2x= -42
Divid -2 by -42 to get X by itself
X = 21

Put X into the equation to check
(19-21) •2= -4
-2•2 = -4
-4=-4

If I got that wrong I’m sorry and I’m sorry for being cocky but 27 doesn’t make sense but I could have gotten the equation wrong in the beginning

Related Questions

There are 24 students in a classroom and 6 large round tables. How many children should be seated at each table if there must be the same number of children at each table? Show your work. HELP PLEASE!!!!!!

Answers

Answer:

4 students in each table

Step-by-step explanation:

24 students

6 desks

24 students split into 6 groups

24 divided by 6

= 4

4 students in each table

Please help as well:
Solve for X

Answers

Answer:

If equal to 90 x is 4

Step-by-step explanation:

19 is 4 with the X and that ur answer

Find the measures of the angles of a triangle of the measure of one angle is three times the measure of a second angle and the third angle measures five times the second angle decreased by 90

Answers

Answer:

hii

x=30

Step-by-step explanation:

x+3x+5x-90=180

9x=270

x=30

if the volume of a cube is 64 cm cube then find its total surface area​

Answers

Answer:

tsa

Step-by-step explanation:

tsa of cube is 6a²

so

64cm²=6a²

Answer:

96 cm²

Step-by-step explanation:

The volume (V) of a cube is calculated as

V = s³ ( s is the side length )

Here V = 64 , thus

s³ = 64 ( take the cube root of both sides )

s = [tex]\sqrt[3]{64}[/tex] = 4

A cube has 6 congruent square faces.

The area of 1 face = s² = 4² = 16 cm², thus

area of 6 faces = 6 × 16 = 96 cm² ← surface area

An audio books club charges an initial joining fee of $20.00. The cost per audio book is $15.00. The graph shows the cost of belonging to the club as a function of audio books purchased. How will the graph change if the cost per audio book goes up by $1.00?
(The new function is shown by the dotted line.)

Answers

Answer:

The graph will change by simply having an increased slope of 16 instead of 15.

Step-by-step explanation:

For this problem, we will consider the initial case as stated by the problem where the joining fee is $20 and each book is $15.  Let x represent the number of books that we have purchased.  Then, we can write the following function to represent the cost of this club.

f(x) = 15x + 20

Note, if x = 0, meaning we have no books, then

f(0) = 15(0) + 20

f(0) = 0 + 20

f(0) = 20

Which is the cost of our joining fee.  If x = 1, meaning we have 1 book, then

f(1) = 15(1) + 20

f(1) = 15 + 20

f(1) = 35

Which is the cost of our joining fee and 1 book, which matches our graphed function.

Now, let's consider that the cost of the book is $16 instead of $15 ("the cost per audio book goes up by $1.00").  Then we can modify the slope of our function to reflect this change giving us the new function:

g(x) = 16x + 20

In this new function, our slope increased from 15 to 16, to account for the increase in cost, but our initial 20 remained the same.

So the graph will change by simply having an increased slope of 16 instead of 15.

Cheers.

Answer:

The new function will have a steeper slope, so...

Step-by-step explanation:

Le: t  x ----> the number of audio books purchased

y ---->the cost of belonging to the club in dollars

case 1 (Originally) :

y = 15x + 20

case 2 ( the cost per audio book goes up by $1.00) :

y= (15+1)x+ 20

y = 16x + 20

The slope of the new function is greater than the slope of the original function    

The new function will have a steeper slope:

16  $/ audio book > 15 $/audio book

Inverse operations are mathematical operations that undo one another. Division is the inverse operation of multiplication. -2 × 6 = -12. -12 ÷ 6 then "undoes" this multiplication, leaving us with a quotient of -2. Multiplication and division follow the same rules related to signs. A negative integer multiplied by a positive integer gives us a negative product. Similarly, a negative integer divided by a positive integer gives us a negative quotient. However, unlike multiplication, division is not commutative. If you change the order of the number you're dividing and the number you're dividing by, you will get a different quotient. Find the quotient: -54 ÷ 9 =

Answers

Answer:

-54/9=-6

Step-by-step explanation:

When doing this division we need to take a couple of things into account. First, notice we are dividing a negative number into a positive number, therefore our answer must be negative.

Second, notice that 9 fits 6 time into 54, therefore:

-54/9=6

We can look at this graphically, if we have 54 squares and divided them in groups of 9, we would get 6 groups of 9 in total.

See attached picture.

Write the word sentence as an equation. Then solve. A number divided by -9 is -16.​

Answers

Answer:

X÷-9=-16 x=144


A car dealership increased the price of a certain car by 11%. The original price was $42,200.
(a) Fill in the blank to write the new price in terms of the original price.
Write your answer as a decimal.
New price - Original price
(b) Use your answer in part (a) to determine the new price.

Answers

So, with percentages the easiest way is to multiply the 42200 by 0.11. After that you get (4642.00) < Answer to A  so you add 42200 to 4642 to get the new price. That should bring you to (46842.0) < Answer to B

Find a formula for the function f(x) such that f′(x)=sin(x) and f(2)=5.

Answers

Answer: f(x) = -cos(x) + 4.584

Step-by-step explanation:

we know that f'(x) = sin(x)

if we integrate that, we get:

f(x) = -cos(x) + C

Where C is a constant of integration.

And we also want that:

f(2) = 5

with that relationship we can find the value of C.

f(2) = 5 =  -cos(2) + C

(The calculation is done in radians)

        5 = -(-0.416) + C

       5 - 0.416 = C = 4.584

Then the function is:

f(x) = -cos(x) + 4.584

sinπ÷14×sinπ÷14×sinπ÷14​

Answers

Answer:

Step-by-step explanation:

??? do you need help or is this free points?

What is the slope of a line perpendicular to the line whose equation is
10x – 8y = -80. Fully reduce your answer.

Answers

Answer:

-4/5

Step-by-step explanation:

write the given equation in y=mx+b form, where m is the slope

10x-8y=-80

-8y= -10x-80 divide both sides by -8

y=(10/8)x+10

y=(5/4)x+10

m= 5/4 is the slope of the given function

the slope of an equation that is perpendicular is the negative reciprocal of the given one so is

m= -4/5

Can someone help me what is the answer

Answers

Answer:

y = 4x + 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 1, - 1) and (x₂, y₂ ) = (0, 3)

m = [tex]\frac{3+1}{0+1}[/tex] = [tex]\frac{4}{1}[/tex] = 4

The line crosses the y- axis at (0, 3 ) ⇒ c = 3

y = 4x + 3 ← equation of line

can i have some help

Answers

Infinite Solutions :) Dhdhsjsjdnnd

Answer:

one solution

Step-by-step explanation:

once you solve it, x equals 0

The Martinez family spent 28% of its monthly income for housing. If the family’s monthly income is $3,200, how much did they spend for housing?

Answers

Answer:.

Step-by-step explanation:

2p + 3w = 7.25 whats p

Answers

Answer 3.625-3/2

Explanation
2p+3w=7.25
2p=7.25-3w
(Divide both sides of the equation by 2)
P=3.625-3/2w

marie is building a fence around a yard in the shape of a square the area of the yard is 196 square feet how many feet of fencing does marie need for her yard? a.14 b.26 c.56 d.784 please help!!!

Answers

Answer:

I think it is 14 Feet

Step-by-step explanation:

Because if we multiply 14 by 14 we will get 196 I also did this test and that is what I put. I hope this helps      

1.) Solve the system of equations by method of elimination. Show all your work.
2x + 4y = 8
10x – 4y = 16

Answers

Answer:

x=2, y=1

Step-by-step explanation:

Add:

2x+4y=8

+10x-4y=16

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

12x=24

Divide by 12 on both sides:

x=2

Substitute x with 2 on either 2x+4y=8 or 10x-4y=16 it doesn't matter it will result in the same answer.

(I will do both of them to prove it but you only need to replace x with one of the equation)

For 2x+4y=8

2(2)+4y=8

4+4y=8

Subtract 4 on both sides

-4+4+4y=8-4

4y=4

Divide 4 on both sides:

y=1

For 10x-4y=16

10(2)-4y=16

20-4y=16

-20+20-4y=16-20

-4y=-4

Divide -4 on both sides:

y=1

The answer for both 2x + 4y = 8 and 10x – 4y = 16 are the same showing that it doesn't matter which equation you replace the number with it will still result you in the same answer

Hope this helps!

the other khan academy assignment

Answers

Answer:

(5,-3)

Step-by-step explanation:

difference in x is 5 and in y it is .5 so add those to (0,-3.5) and you get (5,-3)

the bottom sides of two similar triangles are_______ sides​

Answers

Answer: Proportional

Step-by-step explanation: When to corresponding sides of different triangles are alike, they are considered to be proportional.

2x=90??
btw did you guys see the new battle pass?!?!

Answers

Answer:

fortnite is garbo

Step-by-step explanation:

helppppppppp plsssssssssssssssssssssssssssssssssssssssssssssss

Answers

WOWOOWOWOWOWOOW WOWOOWOW

omg I am literally begging you plz help meeee I have no idea what to do and I need to get these correct so please help me!!!! (also plz show your work) don't answer if you don't know what your doing -_-

Answers

Answer:

2) cause both of them is the same thing

3) Side angle side

4) cpct (corresponding part of congruent triangles)

Can you measure 4 gallons of water using a 3 gallon jar and a 6 gallon jar?

Answers

Answer:

yes just fill up the 6 gallon jar up to the 4 galon mark

Step-by-step explanation:

Yes you can divide the 6 gallon jar in 6 levels. You can see how much water it is where witch level the water is

Is 6r + 3w - 2r + 5w equivalent to 4(r + 2w)

Please help I need the answer ASAP

Answers

I believe the answer is No

which of these context describes a situation that is likely?

Answers

Re ask the question
what are the options?

On see the inverse Nutrlicative meses have a product of 1. Find the multiplicative inverses of the terms in the first column Show that the given number and its multiplicauve inverse have a product of 1. Then, use the inverse to write each comesponding expression in standard form. The first row is completed for you Multiplicat Proof-Show that Use each inverse to write its​

Answers

Answer:

765

Step-by-step explanation:

did this queastion 20 minutes ago

What’s the answer to this problem?

Answers

Answer: y − 6 = 5 ⋅ ( x − 1 )

Step-by-step explanation:

Answer: y − 6 = 5 ⋅ ( x − 1 )

Step-by-step explanation: becuase i got the awnser right on the question

please help i’ll give brainliest please tysm :))

Answers

Answer:

7

Step-by-step explanation:

Multiply the first collum by 7. It's basically unit rates

Answer:

7

Step-by-step explanation:

let the left column be x

let the right column be y

x is being multiplied by 7

so the ratio would be 7x=y

HELP A GIRL OUT please

Answers

Answer:

I GOT YOU GIRLLL!!

= D. 10.4cm

Step-by-step explanation:

a^2+ b^2=c2

3^2+10^2=c2

9+100=c2

109=c2

[tex]\sqrt{109}[/tex] = [tex]\sqrt{c^{2} }[/tex]

10.4=c

what is the slope of a line perpendicular to the line y=-1/4x-1

Answers

-1/4
I really hope this helps

slope of line perpendicular to the line y=-1/4x-1 is 4.

What is Slope of Line?

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

Let us write the given equation  y=-1/4x-1

If we compare the given equation with slope intercept form

We get to know slope of line m is -1/4.

It two lines are perpendicular then the product of their slopes will be -1

-1/4×m=-1

m=4

Hence slope of line perpendicular to the line y=-1/4x-1 is 4.

To learn more on slope of line click:

https://brainly.com/question/14511992

#SPJ2

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