why is y=-9x proportional?

Answers

Answer 1
y = -9x is proportional because its in the format y = kx
if you graph this equation youll see that it is a straight line that passes through the origin

i hope this helps!!

Related Questions

A bear was climbing a tree. It took a few steps forward and then slipped a few steps backward. After taking 12 total steps of equal distance, it was back at its starting position. How many steps did the bear take in the forward and backward directions?

Answers

It took 12 steps forward, and it slipped back to its starting position, which means it slipped the 12 steps worth of distance

hope this helps

Answer:  6 steps forward and 6 steps backward

Hope this helped :D

What’s the answer to this question?

Answers

You have to find the Mean you add them all up then divide it by the amount of numbers there were that you added together so -16 \ 8 = -2

An art teacher has 40 paint brushes.she divides them equally among her 4students. She finds8 more brushes and divides these equally among the students, as well. How many brushes does each student receive

Answers

In the beginning, the teacher evenly distributes the 40 paint brushes to her 4 students. Each student now has 40/4=10 paint brushes.

Later, the teacher finds 8 more brushes and divides them equally to her 4 students again.
The students gain 8/4=2 brushes.

In total, each student receives 10+2=12 brushes.

Hope this helps!

Answer:  The required number of brushes that each student receive is 12.

Step-by-step explanation:  Given that an  art teacher has 40 paint brushes.she divides them equally among her 4 students.

She finds 8 more brushes and divides these equally among the students, as well.

We are to find the number of brushes that each student receive.

The total number of brushes that divides among the 4 students is

[tex]n=40+8=48.[/tex]

Since there were 4 students, so the number of brushes that each student receive is

[tex]n_b=\dfrac{n}{4}\\\\\\\Rightarrow n_b=\dfrac{48}{4}\\\\\Rightarrow n_b=12.[/tex]

Thus, the required number of brushes that each student receive is 12.

A gym membership costs $25 to join and $14 each month. Write and use an algebraic expression to find the cost of the gym membership for 6 months?

Answers

Since it is each month and membership fee is ONE time, the equation is 14x+25=y. 
Since it is asking for 6 months worth of cost, we will input the 6 into the x. 
14(6)+25=$109.
It's pretty expensive, if you ask me.
Let m represent each month
25 + 14m= the cost
25 + 14(6) = 109

The cost would be $109 if he bought the 6-month gym membership. Hope this helps and I explained it well.

Write words to match the expression 6x(12-4)

Answers

Subtract 4 from 12 and multiply by 6

Answer:

"6 times the  difference of 12 and 4"

Step-by-step explanation:

Given: [tex]6\times (12-4)[/tex]

To write the given expression in words.

"6 times the difference of 12 and 4"

Because difference of 12 and 4 is 12-4

6 times of a number(n) is 6n

Therefore,

[tex]6\times (12-4)[/tex] as phrase "6 times the  difference of 12 and 4"

Hence, The phrase of the given expression is "6 times the  difference of 12 and 4"

solve for A

7a + 2 = 3a + 14

a = ??

Answers

7a-3a= 14-2
4a=12
a=3
7a +2=3a+14
4a=12
a=3
so that your awswer!!

The Greendale fifth graders sat in the balcony at Symphony Hall. 15 students sat in each row. How many rows did they fill?

Answers

How many 5th graders total. Take that number divide it by 5 to get your answer.

If the value of "a" lies between −5 and 2 and the value of "b" lies between −7 and 1, what are the possible values for the product a· b?

Answers

-4·(-6)=24
-4·(-5)=20
-4·(-4)=16
-4·(-3)=12
-4·(-2)=8
-4·(-1)=4
-4·0=0

-3·(-6)=18
-3·(-5)=15
-3·(-4)=12
-3·(-3)=9
-3·(-2)=6
-3·(-1)=3
-3·(0)=0

-2·(-6)=12
-2·(-5)=10
-2·(-4)=8
-2·(-3)=6
-2·(-2)=4
-2·(-1)=2
-2·(0)=0

-1·(-6)=6
-1·(-5)=5
-1·(-4)=4
-1·(-3)=3
-1·(-2)=2
-1·(-1)=1
-1·(0)=0

0·(-6)=0
0·(-5)=0
0·(-4)=0
0·(-3)=0
0·(-2)=0
0·(-1)=0
0·(0)=0

1·(-6)=-6
1·(-5)=-5
1·(-4)=-4
1·(-3)=-3
1·(-2)=-2
1·(-1)=-1
1·(0)=0

BOLDED are the answers

The possible values for the product [tex]\( a \cdot b \)[/tex] are between -14 and 14, inclusive.

Here's the step-by-step calculation:

1. To find the minimum possible value, we multiply the smallest values of ( a ) and ( b ):

[tex]\( a = -5 \) and \( b = -7 \)[/tex]

[tex]\( a \cdot b = (-5) \cdot (-7) = 35 \)[/tex]

2. To find the maximum possible value, we multiply the largest values of ( a ) and ( b ):

[tex]\( a = 2 \) and \( b = 1 \)[/tex]

 [tex]\( a \cdot b = 2 \cdot 1 = 2 \)[/tex]

So, the possible values for the product[tex]\( a \cdot b \)[/tex]  are between -14 and 14.

The range of values for( a ) is from -5 to 2, and for ( b ) is from -7 to 1. To find the extreme values of the product [tex]\( a \cdot b \),[/tex]  we multiply the smallest and largest values of ( a ) and ( b ).

For the minimum value, we take ( a = -5 ) and ( b = -7 ), which gives us [tex]( a \cdot b = 35 \).[/tex]

For the maximum value, we take ( a = 2 ) and ( b = 1 ), which gives us [tex]\( a \cdot b = 2 \).[/tex]

Therefore, the product[tex]\( a \cdot b \)[/tex] ranges from -14 to 14, inclusively.

complete question

If the value of "a" lies between −5 and 2 and the value of "b" lies between −7 and 1, what are the possible values for the product a· b?

factor out -1/4 out of -1/2x-5/4y

Answers

Greetings!

[tex] \frac{1}{2}x- \frac{5}{4}y [/tex]
Factor -1/4. How? To factor a polynomial, you divide all the terms by the GCF (The Greatest Common Multiple.)  
[tex]=-1/4(\frac{1}{2}x/(-1/4)- \frac{5}{4}y/(-1/4))[/tex]
Simplify.
[tex]=-1/4(\frac{1}{2}x*(-4/1)- \frac{5}{4}y*(-4/1))[/tex]
[tex]=-1/4(\frac{-4}{2}x- \frac{-20}{4}y)[/tex]
Reduce Fractions to simplest form.
[tex]=-1/4(-2x-(-5y))[/tex]
The Factor Polynomial Is:
[tex]=-1/4(-2x+5y)[/tex]

Hope this helps.
-Benjamin

The warehouse already has 27 pallets of stock waiting to be unloaded, and the delivery van arrives with another 8. The warehouse has room for 32 pallets, how many extra pallets will there be?

Answers

To find the answer you would add 27 and 8 together which would give you 35. Once you've done that, you would subtract 32 from 35 which would give you 3 meaning that there will be 3 pallets left over as your answer.

There are 3 extra pallets will be there.

What is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example,Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

We have.

The warehouse already has 27 pallets of stock waiting to be unloaded, and the delivery van arrives with another 8.

So, total pallets

= 27 + 8

= 35

Now, the number of extra pallets

= 35- 32

= 3 pallets

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Which expression is equivalent to −2.1+(−5.9)+(−3.7) ?

−2.1−(5.9+3.7)

(2.1+5.9)+(−3.7)

(2.1+5.9+3.7)

−(2.1−5.9)+(−3.7)

Answers

The last one because they all have negatives in front of them so when you fool the 2.1 back and solve you get the same answer as the problem given

Option A is correct. The equivalent expression is −2.1−(5.9+3.7)

Given the expression −2.1+(−5.9)+(−3.7)

Before we can determine the equivalent expression, we need to first know that:

- × - = ++ × - = -+ × + =+

The given expression then becomes;

−2.1+(−5.9)+(−3.7) = -2.1 - 5.9 - 3.7

Factoring out the negative sign from the last two terms;

 -2.1 - 5.9 - 3.7 =  -2.1 - (5.9 + 3.7)

Hence the equivalent expression is −2.1−(5.9+3.7)

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What is the value of k in the function ƒ(x) = 112 - kx if ƒ(-3) = 121?
k =

Answers

Plug -3 into the function to get 112+3k=f(-3)=121.
So now can calculate k: 112+3k=121, 3k=9, k=3.
ok to solve for k, take the function f(x) = 112 - kx plug in the x value, so that would be f(-3) now we know that f(-3) = 121 so how to solve for k is quite easy. In replace f(-3) with 121 and x with -3
so 121 = 112 - k(-3) 
solve for k
subtract 112 from both sides
so that would give you 9 = -k(-3)
use the distributive property on -k(-3)
so that would be 3k = 9
divide both sides by 3
which gives you the answer k=3


25m/s to miles/h
Can anyone solve it?
With explanation if you can

Answers

25 meters per second x 60 seconds = 1500 meters per minute

1500 meters per minute x 60 minutes per hour = 90,000 meters per hour

1 mile = 1609.34 meters

90000/1609.34 = 55.92 miles per hour

 round answer to either 55.9 or 56 mph depending on what you need.

(6^3)^2 =
A) 6^1
B) 6^5
C) 6^6
D) 6^9

Answers

[tex]\huge\text{Hey there!}[/tex]

[tex]\mathtt{(6^3)^2}\\\\\mathtt{= (6\times6\times6)^2}\\\\\mathtt{= (36\times6)^2}\\\\\mathtt{= (216)^2}\\\\\mathtt{= 216^2}\\\\\mathtt{= 216\times216}\\\\\mathtt{= 46,656}\\\\\mathtt{= 6^6}\\\\\mathtt{= 6\times6\times6\times6\times6\times6}\\\\\mathtt{= 36\times36\times36}\\\\\mathtt{= 1,296\times36}\\\\\mathtt{= 46,656}\\\\\\\huge\text{Therefore your answer should be:}\\\boxed{\mathtt{Option\ C.\ 6^6}}\huge\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

The width of a rectangle has been measured as 19.4mm correct to 1 decimal place.
What is the lower bound for the area of this rectangle?

Answers

Final answer:

The lower bound of the width of the rectangle is 19.35 mm. Without the length, we cannot determine the exact lower bound for the area of the rectangle. However, if we know the length, we can calculate it by multiplying the length by 19.35 mm.

Explanation:

The lower bound of the width of the rectangle, measured to one decimal place, is slightly less than the measured value. Thus, the lower bound of the width would be 19.35 mm (since we are accurate to 1 decimal place). However, without information about the length of the rectangle, we cannot exactly determine the lower bound of the area of the rectangle.

But if we assume the length to be a certain value (let's say 'L'), the lower bound for the area (A) would be the product of this length and the lower bound of the width. So,

A = L*19.35 mm.

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two friends share 7 cookie equally. How many cookies does each friend get?

Answers

3 1/2 because it is an equal amount

Answer:  Each friend get 3.5 cookies.

Step-by-step explanation:  Given that two friends share 7 cookie equally.

We are to find the number of cookies that each friend get.

We will be using the UNITARY method to solve the given problem.

Number of cookies shared by 2 friends equally = 7.

Therefore, number of cookies that one friend get will be

[tex]\dfrac{7}{2}=3.5.[/tex]

Thus, each friend get 3.5 cookies.

An animal shelter spends $1.00 per day to care for each bird and $7.00 per day to care for each cat. Oliver noticed that the shelter spent $186.00 caring for birds and cats on Wednesday. Oliver found a record showing that there were a total of 36 birds and cats on Wednesday. How many birds were at the shelter on Wednesday?

Answers

x= # of birds
y= # number of cats

x+y=36
y=36-x
1(x)+7(y)=186
x+7(36-x)=186
252-6x=186
x=11

11 birds at the shelter on Wednesday

Two sections of a class took the same quiz. Section A had 15 students who had a mean score of 80, and section B had 20 students who had a mean score of 90. Overall, what was the approximate mean score for all the students on the quiz?

A. 84.3
B. 85
C. none of these
D. cannot be determined

Answers

B, because when you add 90+80 you get 170 and 170/2 = 85

Final answer:

The approximate mean score for all the students on the quiz, calculated by weighing the means by the number of students in each section, is 85.71, which rounds to 86. Thus, the best answer choice (B)  from those provided is 85.

Explanation:

To find the overall mean score for all the students on the quiz, we need to weigh the mean scores by the number of students in each section. We do this by multiplying each section's mean score by the number of students in that section, then adding these products together, and dividing by the total number of students.

For Section A: 15 students × mean score of 80 = 1200 total points.
For Section B: 20 students × mean score of 90 = 1800 total points.

The total points for both sections is 1200 + 1800 = 3000 points.

The total number of students is 15 + 20 = 35 students.

To find the overall mean, we divide the total points by the total number of students:
3000 total points ÷ 35 students = approximately 85.71.

Therefore, the approximate mean score for all the students on the quiz is 85.71, which, when rounded to a whole number, is 86. The closest answer choice given is B. 85, so that would be the best selection from the available options.

Simplify 10 • 2 • 2 • 30 500 1200 4800 5000

Answers

-2 • (x - 600) —————————————— x


Processing ends successfully

Answer:

1200

Step-by-step explanation:

10 times 2 is 20

20 times 2 is 40

40 times 30 is 1200

answer: 1200

Before discarding, Carolee has 4 green cards, 3 red cards, 3 orange cards, and 1 gold card. If she discards the gold. Are, what percent of her remaining cards are red?

Answers

Well 1st, the total of the cards (including gold) is 11. Then without the gold it is 10. So you take the number of red and the total and the fraction would be 3/10. and 3/10ths is 0.30 as a decimal, so to convert from a decimal to a percentage you move the decimal 2 spots to the right, therefore your answer is 30%
Final answer:

After discarding the gold card, Carolee has a total of 10 cards left. The calculation for the percentage of red cards among these is (3 red cards / 10 total cards) × 100, resulting in 30% of the remaining cards being red.

Explanation:

The question asks about the percentage of the remaining cards that are red after Carolee discards the gold card. Initially, Carolee has 4 green cards, 3 red cards, 3 orange cards, and 1 gold card. After discarding the gold card, she has a total of 10 cards left (4 green + 3 red + 3 orange).

To find the percentage of the remaining cards that are red, we use the formula for percentage, which is (Part / Whole) × 100. In this case, the 'part' is the number of red cards, and the 'whole' is the total number of remaining cards.

Percentage of red cards = (Number of red cards / Total number of cards) × 100

= (3 / 10) × 100

= 30%

Therefore, 30% of Carolee's remaining cards are red.

Explain how you can find the numbers of ninths in 2 5/9

Answers

So first you have 2 5/9 and you divide it by nine which is 2 5/9 divided by 1/9
You convert 2 5/9 to a mixed number which is 23/9 and you can just use the 23 because that is the number of ninths.

Answer:

23 is the required answer.

Step-by-step explanation:

We are given a fraction of the form [tex]2\frac{5}{9}[/tex].

It is a mixed fraction.

We convert it into improper fraction.

The improper fraction is of the form [tex]\frac{(9\times2)+5}{9} = \frac{23}{9}[/tex].

This fraction can also be written as 23 multiplied [tex]\frac{1}{9}[/tex] times.

It is clear that the above fraction have 23 parts of ninth.

 

can you help with the air freshener question?? And can you simplify the answer

Answers

It would be 3.75
I looked it up
Hello,

Let's break it down. So for one freshener used, you need 3 and 3/4 millimeters of perfume. So, all you need to do is multiply 3 and 3/4 by 3, since you want 3 fresheners instead of one. So: 3.75 * 3 = 11.25 mm of perfume. Hope this helps =).

The parade had 127 floats. Thatis 34 fewer floats than last year. How many floats were in the parade last year?

Answers

you have to add 34 to 127, so the answer would be 161

Please help...................................................

Answers

If you were to solve it, your answer would be A) 4. 

Is also sort of math but how do you do celsius since I can't figure out how to do it since I'm American so I've never learned it in my school

Answers

Are you asking how to find the celsius equivalent of fahrenheit?

to convert Fahrenheit to Celsius

 subtract 32 then multiply by 5/9 


example 80 degrees F would be (80-32=48, 48 *5/9 = 26.66) 27 degrees C

Help me please I really don’t understand

Answers

Number 1 is C.
Number 2 is C.
Did you need all of them?


how do I solve -15=-4m+5

Answers

Simplifying -15 = -4m + 5 Reorder the terms: -15 = 5 + -4m Solving -15 = 5 + -4m Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '4m' to each side of the equation. -15 + 4m = 5 + -4m + 4m Combine like terms: -4m + 4m = 0 -15 + 4m = 5 + 0 -15 + 4m = 5 Add '15' to each side of the equation. -15 + 15 + 4m = 5 + 15 Combine like terms: -15 + 15 = 0 0 + 4m = 5 + 15 4m = 5 + 15 Combine like terms: 5 + 15 = 20 4m = 20 Divide each side by '4'. m = 5 Simplifying m = 5

The solution to the equation -15 = -4m + 5 is m = 5.

We have,

To solve the equation -15 = -4m + 5, you can follow these steps:

- Step 1:

Start by isolating the variable term (-4m) on one side of the equation.

You can do this by subtracting 5 from both sides:

-15 - 5 = -4m

Simplifying, we get:

-20 = -4m

Step 2:

Divide both sides of the equation by -4 to solve for m:

-20 / -4 = -4m / -4

Simplifying, we get:

5 = m

Therefore,

The solution to the equation -15 = -4m + 5 is m = 5.

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the vertices of a triangle are A(-2,4), B (1,2), and C(-2,-2). reflect the triangle in the y-axis, and then rotate the image 90 degrees counterclockwise about the origin. what are the coordinates of the image?

Answers

See the pic for the work.

The coordinates of the image of triangle ABC are A''(4, -2), B''(2, 1) and C''(-2, -2).

What is rotation rule of 90°?

Here are the rotation rules: 90° clockwise rotation: (x, y) becomes (y, -x) 90° counterclockwise rotation: (x, y) becomes (-y, x).

Given that, he vertices of a triangle are A(-2,4), B (1,2), and C(-2,-2).

Reflect the triangle in the y-axis

The rule for a reflection over the y -axis is (x,y)→(-x, y)

Here, A(-2, 4)→A'(2, 4)

B (1,2)→B'(-1, 2)

C(-2,-2)→C'(2, -2)

Then rotate the image 90 degrees counterclockwise about the origin.

A'(2, 4)→A''(4, -2)

B'(-1, 2)→B''(2, 1)

C'(2, -2)→C''(-2, -2)

Therefore, the coordinates of the image of triangle ABC are A''(4, -2), B''(2, 1) and C''(-2, -2).

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Latrell has $8 to spend on postcards. He wants to buy one large postcard and some small ones. Write and solve an inequality to determine how many small postcards Latrell can purchase. Interpret the solution.

Answers

I have had this worksheet

(2x+3 2/5) + (5x -4/3

Answers


Explanation:
____________________________________
Given the expression:
____________________________________
 " (2x + 3 ⅖)  + (5x − 
(2x+5x)+ 6*3/15-20/15= 7x-2/15
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