Mathematics High School

If y varies drectly with x
and y= 4.5 when x= 2.5,
what is y when x= 12?

Answers

Answer 1
You have to figure out what the difference is first , so we can se le that the difference between y and x will always be 2, we got this number by subtracting 4.5-2.5=2.
So we are given x which is 12 so in order to solve this you just substitute x with 2 in the next equation 12+x=y/ 12+2=14

Related Questions

Help please with #9 & 10!!!

Answers

Answer:

9) x=3

10)x=8.5

Step-by-step explanation:

Because M is a midpoint, for both questions, the equations on M's either sides are equal.

9) 5x+9=24

Subtract 9 from both sides

5x=15

Divide by 5 on both sides

x=3

10) 3x-7=x+10

Add 7 to both sides and subtract x from both sides

2x=17

Divide by 2

x=8.5

(3x – 70)
(3y + 40)°
120°
X

Answers

Answer:

x=250

Step-by-step explanation:

Nilopal is 2 years older than Devjan who is 7 years older than Sucha. If their combined age is 61 years, find age of each person?

Answers

Answer:

23, 30, 8

Step-by-step explanation:

with 12 gallons of gas, he notices that it costs him $50.28.

How much will it cost him to fill up the truck if it needs 25 gallons of gas?

Answers

Answer:

$104.75

Step-by-step explanation:

$4.19 per gallon

$4.19 x 25= $104.75

I need two answers pls

Answers

I know that one is 9/44. I’m not sure about the other one, sorry!

Which of the following is the best example of a system of equations that should be solved by the elimination method?


Question 2 options:


8x + 3y = 2


5x + 8y = -11



2x - 4y = -16


y = 5x + 13



-8x - 9y = -17


16x - 4y = 12



12x + 7y = -17


9x + 11y = -7

Answers

Answer:the answer -8x-9y=-17

16x-4y=12

Step-by-step explanation:

divide 16x-4y=12 with 2

8x-2y=12

Then add the equations

-8x-9y=-17

8x-2y=12

0-11y=-23

You can’t do this with the other equations provided.

what is 14.876 - 4.96

Answers

Answer:

9.916 is the answer

the answer is 9.916 can i get brainliest please

A survey got 67,371 responses. The survey has 24 questions. How many total answers need to be processed?

Answers

Answer:

1,616,904 answers.

Step-by-step explanation:

67,371

x     24

______

1,616,904

please help me with these​

Answers

Answer:

1: 128

2: 11

3: 6

~~~~~~~~~~~~~~~~~~~~~~

I'm sure that I did it right make sure to double check tho!

All you need to do is plug the numbers into their variables :)

What is an equation in point slope form of the line that passes through (7, 1) and (-3,9)

Answers

Answer:

y= -4/5x+33/5

Step-by-step explanation:

for questions like these, the slope is always defined as the change in y over the change in x or use the equation m=y2-y1/x2-x1.

x1=7 and y1=1

x2=-3 and y2=9

now plug these numbers in to the equation. m= 9-1 / -3-7 Or m= 8/-10 simplified to m= -4/5

now that we have the slope you can plug it in to the equation y=mx+b and get y= -4/5 + b.

to find b, the y-intercept, you can use either of the two points and the answer will be the same. for this one, I'll use (7,1).

1= -4/5 x 7+b. b= 33/5

HOPE THIS HELPS!!

find the value of x so that f(x)=7.
​

Answers

find the value of x so that f(x)=7

The answer is:

x = 5

The value of x such that f(x) = 7 is 5.

What is Function?

A function is a relation from a set A to a set B where the elements in set A only maps to one and only one image in set B. No elements in set A has more than one image in set B.

Given a graph of a function f(x).

The graph is a straight line where there is a unique value of y for each value of x.

We have to calculate the value of x when y = 7.

Taking the y coordinate to 7, the x coordinate corresponding to the y coordinate is 5.

Hence the value of x is 5.

To learn more about Functions, click on the link :

https://brainly.com/question/12431044

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List the first 15 perfect cubes:
23
33
43
53
63
83
93
103
11
12
13
14
153
13
1
1
73
1
1
1 l
Sign out
INTL

Answers

Answer:

1

1

1

11

11

235

5

6

65

6

444444444

4566

PLS HELP 50 POINTS I WILL GIVE BRAINLIEST
Assume the vertical lines are parallel. Find the measures of angles 1-15.

Answers

1. 12
2. 50
3. 40
4. 30
5. 70
6. 50
7. 60
8. 40
9. 40
10. 40
11. 50
12. 130
13. 140
14. 40
15. 140

Which of the following demonstrates the distributive property?​

Answers

Distributive property is an example like this

2(x+y)=2x+2y.

a(b+c)= ab+ac

Answer:

You dont have the equation

>:(

Step-by-step explanation:

What is the value of x?

Answers

Answer:

x = 60 degrees

Step-by-step explanation:

Porque el valor absoluto de 0 es 0?

Answers

De hecho, ¡puede igualar CUALQUIER COSA! 0/0 no está definido. No solo 0/0, sino que cualquier número dividido por 0 es indefinido o infinito porque ningún número multiplicado por 0 puede dar un número natural y no hay límite de la respuesta que obtienes al dividir cualquier número por 0, continuará como 0000000000 …… .. 00000 …….

When Tran finished the next level of her video games, she gained 40 points for each of the two targets she hit and lost 125 points for taking too long. Write the total change to her score as an integer.

Answers

Answer: -45 is the first

-30 is the answer to the picture

Please help ASAP
What is the greatest common factor of 9 and 12?
3
9
36
108

So... I looked up this question before asking BUT some people said it was wrong ???? so I wanted to get some second opinions.

Answers

3 is the greatest common factor, because both numbers are divisible only by 3.

Answer:

The GCF Of 9 and 12 is 3.

Step-by-step explanation: Okay so first lets multiply! 3x1 Is 3 3x2 is 6 and 3x3 is 9, 3 x 4 equals 12! Since they both can be divided by 3, Example 12 divided by 3= 4 9 divided by 3= 3, therefore they have a GCF of 3. Remember, this is the greatest factor, not Multiple.

(-1,-1) and ( 4,5)

Finding the distance between the two points

Answers

Answer:

The distance between the two points is

Exact form:

√41

Decimal form:

6.40312423.......

Have a wonderful day!!!

A cylinder has a height of 5.3cm and a diameter of 3.0cm. What is its volume

Answers

Answer:

44.53

Step-by-step explanation:

I'm smort

NEED TO SKETCH THE GRAPH OF EACH LINE

Answers

Answer:

The first picture is number 4

The second picture is number 5

The last picture is number 3

Step-by-step explanation:

A​ company's stock began the day at ​$36.66 per share. That price drops by ​$1.69 each hour.
a. What is the price per share after 6 ​hours?

Answers

Answer:

vwhich principle prevents a brach from abusing  its power

Step-by-step explanation:

Identify the set of numbers that best describes the situation. Explain your choice. The weight of a person in pounds.

Answers

Answer:

Rational number

Lilianna uses 3/4 calories per minute just by sitting. She uses 1 more calorie per minute by walking. Lilianna uses a total of 12 1/4 calories walking to the park. Lilianna uses the equation, d(3/4+1)=12 1/4 to represent the situation. what does the variable d represent in the equation?
A) Calories per minute Lilianna uses walking
B)Number of calories Lilianna would have used sitting
C) Number of minutes Lilianna walked
PLEASE HELP
12POINTS

Answers

Answer:

C) Number of minutes Lilianna walked

Step-by-step explanation:

Variable d represents the time per minute Lilianna spends in the park.
Step-by-step explanation:
Lilianna uses \frac{3}{4} calories per minute just by sitting. She uses 1 more calorie per minute by walking.
Liliana uses a total of 12\frac{1}{4} calories walking to the park.
Lilianna uses the equation, d(\frac{3}{4}+1)=12\frac{1}{4} to represent the situation.
Here, variable d represents the time per minute she spends in the park.
and is given as,
d(\frac{3}{4}+1)=12\frac{1}{4}
It can be written as,
d(\frac{3}{4}+1)=\frac{49}{4}
Solving for d,
d(\frac{3}{4}+1)=\frac{49}{4}
\Rightarrow d(\frac{3+4}{4})=\frac{49}{4}
\Rightarrow d(\frac{7}{4})=\frac{49}{4}
\Rightarrow d=\frac{49 \times 4}{4 \times 7}
\Rightarrow d=7
Thus, she spend d= 7 minutes total to the park.

3x-4(2+3x)=82
I have to get an answer of x=-10 but I cant seem to get it. Can someone answer it and give me an explanation please?

Answers

Answer:

x=-10

Step-by-step explanation:

3x-4(2+3x)=82

3x-(4*2)+(4*3x)=82

3x-8-12x=82

-9x-8=82

-9x-8+8=82+8

-9x=90

-9x/-9=x

90/-9=-10

x=-10

Answer:

10 isn't the right answer

Step-by-step explanation:

multiply everything in the parenthesis by -4

you would get 3x-8-12x=82

then combine like terms to get -9x

once your equation is in simplist form it will look like

-9x-8=82

next you add 8 to the 82

-9x=90

then divide 90 by -9 and you would get

x=-10

Which of the following expressions is written in scientific notation? (math)

Answers

Answer:

I need the expressions

What are the options/expressions?

Jenny has 3 guitars. Steve has 4 guitars. If the
ratio of guitars is 4:3, who is first in the ratio?

Answers

Answer:

Steve is first

Step-by-step explanation:

Steve is first in the ratio if the ratio of guitars is 4:3.

What is Ratio?

The ratio is defined as a relationship between two quantities, it is expressed as one divided by the other. A set of data points can be used to observe the constant relationship. A set of data with a constant relationship between two values is a comparison of miles traveled to hours traveled. A special type of ratio is the comparison of two different quantities.

The general form of expressing a ratio between two quantities say 'a' and 'b' is a: b

Jenny has 3 guitars. Steve has 4 guitars.

The ratio is 4:3, which represents 4/3 or 4 parts Steve to 3 parts Jenny.

Hence, Steve is first in the ratio.

Learn more about the Ratio here:

brainly.com/question/1504221

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A college accepted new applicants, of whom 56% were male and 44% were female. The board of directors was not pleased that males were being accepted at a greater percentage than females. A private company investigated and found each department accepted a greater percentage of females over males. What may make this claim possible?

Answers

Answer:

Simson paradox

Step-by-step explanation:

In Simpson paradox, the trend that appears in the combined data reverses or disappears in the results of the several individual groups that make up the combined data

In the question, given that the percentage of female applicants accepted = 44% while the percentage of male applicants = 56%, and that the private company found that each department accepted a greater percentage of females over males

The above claim can occur when there is a confounding variable, which is the number of applications from female or male

The percentage used or the data provided to by the private company in each department are percentage in proportion of number of accepted females to total number of female applicants and percentage in proportion of number of accepted males to total number of male applicants, whereby, when there are fewer number of female applicants to each department and more were accepted, their percentage will be larger than the percentage of the male applications that have a lower percentage but larger number of applications, such that the accepted male applicants still outnumber the female when that total number of applications are considered.

A bird is about 6.9 inches long. If the bird can fly 64 miles with the wind in the same time it can fly 44 miles against the wind when the wind speed is 5 mph, what is the rate of the bird in still air?

Answers

Answer:

69?

Step-by-step explanation:

wheres the 420 at aye gottem

C
Paul can spend no more than $26
on his pizza order. Each pizza costs $8 and there
is a $3 delivery fee.

Answers

Answer:

Paul can afford 2 pizzas

Step-by-step explanation:

Equation: 26 = 3 + 8x

Solve for x

26 - 3 = 23

8x = 23

23/8 = 2.875

Round down because he can't buy half a pizza

2 pizzas

Answer:

Paul can buy the pizza with 15 dolars left

step-by-step explanation:

8+3=11

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