15/3 = 45/x
solve for x​

Answers

Answer 1

Answer:

15/3=45/x

We move all terms to the left:

15/3-(45/x)=0

Domain of the equation: x)!=0

x!=0/1

x!=0

x∈R

We add all the numbers together, and all the variables

-(+45/x)+15/3=0

We add all the numbers together, and all the variables

-(+45/x)+5=0

We get rid of parentheses

-45/x+5=0

We multiply all the terms by the denominator

5*x-45=0

We add all the numbers together, and all the variables

5x-45=0

We move all terms containing x to the left, all other terms to the right

5x=45

x=45/5

x=9

Step-by-step explanation:


Related Questions

Is(-10,-7) a solution to this system of equations?

Answers

Answer:

picture?

Step-by-step explanation:

what equation?

The ratio of fish to turtles in a pond is
20:3. There are 80 fish in the pond.
How many turtles are in the pond?
A 10
14
C 12
D 16

Answers

Answer:

C : 12

Step-by-step explanation:

Answer:

12 turtles

Step-by-step explanation:

First, if the ratio of fish to turtles is 20:3 and there are 80 fish, then we know that you have to divide 80 by 4 to get the answer 20. However, to find out how many turtles there are you need to do the opposite and multiply instead of dividing. So you do 3 x 4, which get you your answer.

Hope this helps!

SOMEONE HELP OR IM GONNA FAIL

A bag contains:
• 5 red marbles
• 6 blue marbles
. 3 green marbles
• 4 black marbles
• 2 yellow marbles
A marble will be drawn from the bag and replaced 100 times.
What is a reasonable prediction for the number of times a green
or black marble will be drawn?

Answers

Answer:

A green marble  will be drawn 64444444444444444444444444444444444445372587542723784532784572384327542757235432785423752375428369823 to the sqaure root of 48727 times

Step-by-step explanation:

hola espanol taco chicop espanol

I think a fair argument for the green marbles is that it will be chosen 15/100 times, because if you add all marbles up you get 20 marbles in total, with 3 being green. If you multiply this by five you will get 15/100, therefore this is a reasonable prediction.

(Sorry about the other person.)

oh please i need help lol

Answers

Answer:

 

Step-by-step explanation:

                               

PLEASE HELPPP MEE.....

Answers

Answer:

C ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Leon has $50 in a savings account that earns 10% interest, compounded annually. To the nearest cent, how much interest will he earn in 2 years?

Answers

Answer:

$10.50

Step-by-step explanation:

Interest = future value - amount saved

The formula for calculating future value:

FV = P (1 + r)^n

FV = Future value  

P = Present value  

R = interest rate  

N = number of years

$50 x (1.1)^2 = $60.50

Interest = $60.50 - $50 = $10.50

Jesse looks at the prices of 5 guitars. The prices are $85,
$90, $88, $82, and $86. This data set does not contain an
extreme value.
Which measure of center should Jesse use to describe the prices?
A. Either the mean or the median. The values are about the same.
B. Mean absolute deviation (MAD)
C. Interquartile range (IQR)
D. Range

Answers

The answer is A. I did this test and it said it was A.

In the expression 3x + 5x – 3y + 5, which terms are “like terms”?
A. 3x and 3y
B. x and 5
C. 3x and 5x
D. all terms

Answers

Answer: C

Step-by-step explanation: 3x and 5x both have x

C - 3x and 5x. Because like terms are the ones with the same variable/letter.

Help please!

Extra points.

Answers

Answer:

option C is correct answer of this question

x is grater than or equal to 55.25

hope it helps

Answer:

C

Step-by-step explanation:

8x≥442

x≥55.25

greater than or equal

find four numbers that are between 0.22 and 0.23, and put all numbers in order from least to greatest

Answers

0.223, 0.224, 0.225, 0.226

Rob is flying a kite with a string that makes a 70-degree angle with the ground. If the kite string is 27 meters long, how high is the kite above the ground?

(Please use the exact ratio to calculate the missing side and round your answer to the nearest hundredth.)

The kite is meters above the ground.

Answers

Answer:

25.37

Step-by-step explanation:

Use SOH or Sin∅=[tex]\frac{opposite}{hypotenuse}[/tex]

So Sin(70)= [tex]\frac{x}{27}[/tex]

Multiply both sides of the equation to end up with 27Sin(70)=x

Plug into your calculator in degrees and you get 25.37m

If a:b=3:2 find the value of a+b / a-b​

Answers

a = 3 and b is 2 so 3 + 2 = 5
a - b = 1
Therefore : 5/1

60 degrees 30 degrees 72 degrees 46 83 97 215 457

Answers

pretty sure its 97° i might be wrong

Does anyone know how to do this!!!!

Answers

I cannot see it good

Help please thanks!!!

Answers

Answer:

The 4th choice which is y+1=2(x-3)

What number should go in the space?
Multiplying by 1.25 is the same as increasing by __ _%.

Answers

Answer:

125

Step-by-step explanation:

1.25=125/100=125%

Question 14 pls for my math class

Answers

the answer is c but i might be wrong

Please help! 15 points! Do not steal points or I will report! Explanation = Brainliest!
Solve [tex]\sqrt{384}[/tex] without going into decimals.

Answers

(Answer is below)

Let's solve this step-by-step.

1. Prime factorization of 384.

[tex]=\sqrt{2^7\times3}[/tex]

2. Apply the exponent rule. (Formula: [tex]a^b^+^c=a^b\times a^c[/tex])

[tex]=\sqrt{2^6\times2\times2\times3}[/tex]

3. Apply the radical rule. (Formula: [tex]\sqrt{ab} =\sqrt{a}\sqrt{b}[/tex] or [tex]a\geq 0,b\geq 0[/tex])

[tex]=\sqrt{2^6} \sqrt{2\times3}[/tex]

3a. Solve 2 to the 6th power.

[tex]\sqrt{2\times2\times2\times2\times2\times2} =8[/tex]

4. Multiply 2 by 3. (Note: Put the 8 in your final answer)

[tex]\sqrt{2\times3} =8\sqrt{6}[/tex]

Your answer is: [tex]8\sqrt{6}[/tex]

Let me know if you have any questions.

~ Lily, from Brainly.

What is the solution for the following system of equations?
2x + y = 7
x - 2y = 6

Answers

I got you bro!

Answer:

{x,y} = {4-1}

You might be wondering how I got this, well here are the steps:

System of Linear Equations entered :

  [1]    2x + y = 7

  [2]    x - 2y = 6

Graphic Representation of the Equations :

   y + 2x = 7        -2y + x = 6  

 

Solve by Substitution :

// Solve equation [2] for the variable  x  

 [2]    x = 2y + 6

// Plug this in for variable  x  in equation [1]

  [1]    2•(2y+6) + y = 7

  [1]    5y = -5

// Solve equation [1] for the variable  y  

  [1]    5y = - 5

  [1]    y = - 1

// By now we know this much :

   x = 2y+6

   y = -1

// Use the  y  value to solve for  x  

   x = 2(-1)+6 = 4

Solution :

{x,y} = {4,-1}

I hope this has helped you and have a wonderful day!

9.
Evaluate f(x) = [tex]-x{2}[/tex] for x = –3.

A. –9

B. –8

C. 4

D. –4

Answers

Answer: D




Explanation

Write an
algebraic expression to represent the area of the shaded region:
2y
4y + 3

Answers

Answer:

4y^{2}+3y  

Step-by-step explanation:

First you need to distribute the values.  

(4y+3)(2y) Using the "Rainbow Method" to multiply the polynomials  

You Should get  

8y^{2}+6y  

Since this is the area of the rectangle and we need to find the area of the shaded region you need to dived 8y^{2}+6y in half because the shaded region is half of the rectangle.  

8y^{2}+6y/2  

Doing this you will get  

4y^{2}+3y

PLS HELP! I WILL GIVE BRAINLIEST TO BEST ANSWER! Just number 2. Pls exlpain your work. Doesn't have to be like an essay, just enough so I know that you know it's the right answer. TYSM!


PS: You may have to rotate the picture to read it.

Answers

Answer:

D

Step-by-step explanation:

If you solve you will find out that its D

What is 5 1/2 - 3 1/4=? Ty if you answer.

Answers

Answer:

2.25

Step-by-step explanation:

your welcome. oh and make it a improper fraction then subtract:)

Answer:

2 1/4

Step-by-step explanation:

or 3.25 in decimal form

simplify a-(a+b)
(it's not b or a-b)

Answers

Answer:

-b

Step-by-step explanation:

a-(a+b)

a-a-b

-b

-b a-(a+b)
a-a-b
-b

Preparation for the homecoming football game, members of the student body are painting the spirit rock in front of the school. If Angela works alone, it will take her five and a half hours. If Brandon works alone, it will take him 7 hours. If they work together, it will take them approximately hours ?

Answers

Answer:

3.08 hours

Step-by-step explanation:

Preparation for the homecoming football game, members of the student body are painting the spirit rock in front of the school.

If Angela works alone, it will take her five and a half hours.

If Brandon works alone, it will take him 7 hours. If they work together, it will take them approximately hours ?

This is calculated as:

The Number of hours they worked together = T

1/5.5 + 1/7 = 1/T

= 7 + 5.5/(5.5)(7)

= 12.5/38.5

1/T = 12.5/38.5

Cross Multiply

12.5T = 38.5

T = 38.5/12.5

T = 3.08 hours

The time required when Angela and Brandon work together, for the preparation for the homecoming football game, is 3.08 hours.

What is the relation between work and time?

The total time taken is inversely proportional to the rate of work. If a unit of work is done in total n number of days, then the total work done in a day can is,

[tex]W_1=\dfrac{1}{n}[/tex]

In preparation for the homecoming football game, members of the student body are painting the spirit rock in front of the school.

If Angela works alone, it will take her five and a half hours. The work done by Angela in one hour is,

[tex]A=\dfrac{1}{5.5}\\A=\dfrac{2}{11}[/tex]

If Brandon works alone, it will take him 7 hours. The  work done by Brandon in one hour is,

[tex]B=\dfrac{1}{7}[/tex]

The work done in one hour, when the work together,

[tex]A+B=\dfrac{2}{11}+\dfrac{1}{7}\\A+B=\dfrac{14+11}{77}\\A+B=\dfrac{25}{77}\\A+B=\dfrac{1}{3.08}[/tex]

Thus, the time required when Angela and Brandon work together, for the preparation for the homecoming football game, is 3.08 hours.

Learn more about the work and time here;

https://brainly.com/question/25572872

For a school fundraiser, Jessica will make T-shirts. She will order T-shirts and print graphics on them. Jessica must spend $255 on a printing machine and
$6.80 per shirt for the blank shirts, Ink, and other supplies.
Part
What is the maximum number of T-shirts Jessica can make with a budget of $1,000?
Explain your answer or show your work:

Answers

You’d need to start by subtracting initial cost from the budget, so

1000-255= 745

You then divide the 745 by the cost of making each shirt,

745/6.80= 109.56

Since you can’t make .56 of a shirt, and the budget says we can’t round up, you can only make 109 shirts.

Hope that helps!

PLEASE HELP


is 18 35 and 53 going to make a right triangle

Answers

Answer:

No.

Step-by-step explanation:

53 + 35 = 88, add 18 = 106.

Answer:

no

Step-by-step explanation:

18x18 + 35 x35 = 53x53

324 + 1225 = 2809

1549 =\ 2809

(9+5)(3+2)⁰
Evaluate



A:0
B:1
C:14
D:15​

Answers

Answer:

C:14

Step-by-step explanation:

(9+5)(3+2)°= (9+5)(1)=14

Given Point A (3,-4) and Point B (8,6) on directed line segment AB, what is the y-coordinate of Point F
that partitions AB in the ratio of 3:2?

Answers

Answer:

(6,2) y-coordinate is 2

Step-by-step explanation:

The coordinates of the point F on directed line segment AB that partitions AB in the ratio 3 :2 are: (6, 2)

What is Coordinate geometry?

The formula for finding the coordinates of a point that divides the line in ratio m:n are given by:

We are given that Point A (3,-4) and Point B (8,6) on directed line segment AB.

Here (x1,y1) and (x2,y2) are coordinates of the two points line passed through

(x1,y1) = A(-3,-4)

(x2,y2) = B(8,6)

Ratio: 3 : 2

m = 3

n = 2

Putting the values in the formula

( x, y) = (3 x 8 + 2 x 3 /5  , 3 x 6 + 2 x (-4) /5 )

( x, y) = (24 + 6 / 5 , 18 - 8 /5)

( x, y) = (30/5, 10/5)

( x, y) = (6, 2)

Hence,

The coordinates of the point F  are: (6, 2)

Learn more about coordinate geometry at:

brainly.com/question/9184100

#SPJ6

Plzzzzzzzzzzzzz help me i begggg u just find the number for the boxes

Answers

Answer:8.124. 9.42 10. TW=4.015 equation sin(35)=4.015/7. 11.WS=10.459 equation: Tan(69)=10.459/4.015

Step-by-step explanation:

use sine rule and tan rule like upwards and hope you get it right mate

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