5 less than 3 times a number is 7. How would I write this as an equation

Answers

Answer 1
You want to break this down.

“5 less than” means you’ll subtract 5 from something.

That something is “3 times a number.” “3 times a number” means 3•x or 3x, since we’ll use x for that unknown number.

So, “5 less than 3 times a number” means “subtract 5 from 3x”: 3x-5

“Is” means “equals”. So 3x-5= something.

7, well, that’s 7.

So “5 less than 3 times a number is 7” means ”subtract 5 from 3x and set that equal to 7.”

3x-5=7
Answer 2

Answer:

The equation would be 5-3x=7

Step-by-step explanation:

5 less than indicates subtraction, and 3 times a number indicates both values being multiplied with each other, so it's 3x. Hope that helped.


Related Questions

Find the coordinates of the vertices of each figure after the given transformation.
dilation of 2.5 about the origin
Q(-1,-1), R(-2, 1), S(0, 2), T(2,0)

Answers

Step-by-step explanation:

Q(-1,-1), R(-2, 1), S(0, 2), T(2,0)

after dilation, all the numbers should be multiplied by 2.5.

so, the correct answer is d.

Q'(-2.5 ,-2.5), R'(-5, 2.5), S'(0, 5), T'(5,0)

Hello Brainly User please help me I will mark brainliest. Its really east math please help me

Answers

1. not function
not function
not function (i’m pretty sure)

2. not function
function


-.0666
Rational or
Irrational?
WHY

Answers

Answer:

It's irrational

Step-by-step explanation:

An irrational number can be written as a decimal, but not as a fraction. An irrational number has endless non-repeating digits to the right of the decimal point.

Answer:

Rational

Step-by-step explanation:

Irrational numbers go on FOREVER.

An example is

1. π

2.[tex]\sqrt{2}[/tex]

....

Surds are irrational. A surd is a square root of a number that goes on forever.

Some irrational numbers have recurring digits (repeating digits)

10/3 is an example:

3. 333333333333333333333333333333333333333333............

5 + (-8) - (-10)

please help

Answers

Answer:

-7

Step-by-step explanation:

5 + (-8) - (-10)

5 - 8 + 10

-3 + 10

7

Answer:

7

Step-by-step explanation:

TUrns into 5-8-(-10)

5-8+10

PEMDAS the answer and youll get 7

please help will give you brainly

Answers

Answer:

-1/2

Step-by-step explanation:

3(y+13 )=36

y+13=12

y=-1

(1/2) x -1 = -1/2

3(y + 13) = 36

Distribute the 3

3y + 39 = 36

Subtract 39 from both sides.

3y = -3

Divide both sides by 3

y = -1

1/2y = 1/2(-1) = -1/2

What is the coefficients and Constants for 5x-10

Answers

Answer:

coefficient

5

constant

-10

Step-by-step explanation:

5x-10

The coefficient is the number in front of the variable

5

The constant is the number alone

-10

Solve for the value of R

Answers

Answer:

13

Step-by-step explanation:

Since the angles form 180 degrees, it will be what the equation is equal to.

Make the equation:

8r + 5 + 5r + 6 = 180

Combine like terms:

8r + 5 + 5r + 6 = 180

13r + 5 + 6 = 180

13r + 11 = 180

Solve:

13r + 11 = 180

       -11     -11

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

     13r = 169

    ------   ------

      13      13

        r = 13

Hope this helped.

I think 13 I don’t know for sure though

please help!!!!!!!!!​

Answers

110 feet of fencing is needed to make four gardens

Answer:

110

Step-by-step explanation:

First, find the perimeter of 1 fence.

55/2 or [tex]27\frac{1}{2}[/tex]

Multiply by the number of fences (4)

110

I hope this helps!

If f(x) = 3x +5/x what is f(a+2)?

Answers

I was a little confused so I solve it two different ways and got different answers so pls read through this carefully

Substitute a+2 instead of x
That would look something like: 3(a+2)+5/a+2
Now simplify:
3a+6+5/a+2
3a+11/a+2

3(a+2) +5/(a+2)
3a+6 + 5/(a+2)
LCM: (3a(a+2) + 6(a+2) +5)/a+2
So your answer will be (3a^2 + 12a + 17)/(a+2)

I hope this helps :)



If two functions are inverses of each other, which 2 statements are true?
A The graph of an inverse of a function is a reflection of the function across the line y=x. B f(g(x)) = x and g(f(x)) = x
C The graph of an inverse of a function is a reflection of the function across the line y=0. D f(g(x)) =1 and g(f(x)) = 1

Answers

Answer:

A and B

Step-by-step explanation:

To be inverses, the inverse composite functions must equal x, since the input and output must be equal as how much you used as your input, which is x. B proves that. Also, the graph must reflect over y = x, which is the line that runs through the origin

14 644 552 + 25 625 568




ayud estoy haciendo tarea :3

Answers

Answer:

14644552+25625568

=40270120

Step-by-step explanation:

is right answer

Josefina's check at Sun Bistro is $26.70. In order to leave a 24% tip, how much should she pay? Round to the nearest cent.

Answers

Answer:

33.11 hope this helps

Step-by-step explanation:

she needs to pay $33.108 In order to leave a 24 percent tip.

What is ratio?

The ratio can be defined as the number that can be used to represent one quantity as a percentage of another. Only when the two numbers in a ratio have the same unit can they be compared. Ratios are used to compare two objects.

Given, Josefina's check at Sun Bistro is $26.70. she wants to leave a 24% tip

Bill of josefina = 26.70

Bill after 24% tip = 26.70 * (1 + 24%)

Bill after 24% tip = 26.70 * 1.24

Bill after 24% tip = 33.108

Therefore, In order to leave a 24% tip she needs to pay $33.108.

Learn more about ratios here:

https://brainly.com/question/13419413

#SPJ2

Alix is 6 inches shorter thelan Ben. Alix is p inches tall. Write an expression to show how tall Ben is

Answers

Answer:

p+6

Step-by-step explanation:

Malachy rolls a fair dice 168 times.
How many times would Malachy
expect to roll an even number?

Answers

Step-by-step explanation:

no of even numbers=84

84/168

1/2

plsss mark brainliesttt

PLEASE HELP MARKING BRAINLIEST

Answers

The answer is B, I believe.

Which equation matches the line shown on the graph below?

Answers

ANSWER: A

count rise/run. the 0 goes 2 up and 3 over to the next point making that your slope
The equation that matches the line shown on the graph is a

Find(f−g)(x) f(x)=x2−6xandg(x)=−2x+3
A x2−4x+3
B x2+4x−3
C x2−4x−3
D x2+4x+3

Answers

Answer:

option C is the answer......

What is the fraction in simplest form?

14/16


79

28/32

78

7/16

Answers

Answer:

7/8

Step-by-step explanation:

Divide the top and bottom by 2.

14 / 2 = 7

16 / 2 = 8

7/8

.Si un juguete vale s/ 95 me lo rebajan en s/ 27.¿Cuanto me costara?

Answers

Answer:

Vale 95.

Me rebajan 27.

95-27=68

Me costará 68.

Step-by-step explanation:

Please Help Please !!!!!!!

Answers

Answer:

I wish I could but I think its c

It’s B! I would tell you how I got the answer but I can tell your in a rush

Needing some help for my online class thanks

Answers

Answer:

[tex]y=1/2x+2[/tex]

Step-by-step explanation:

Know that: [tex]y=mx+b[/tex]

Starting for (0,0) count how many times you go up to the marked line (which is 2)

[tex]y=1/2x+2[/tex]

The [+] 2 is where you would start off at on the graph, with 1/2 being the slope go up one and over two.

Please explain how to solve this problem

The manager of a store that specializes in selling tea decides to experiment with a new blend. She will mix some Earl Grey tea that sells for $6 per pound with some Orange Pekoe tea that sells for $4 per pound to get 400 pounds of the new blend. The selling price of the new blend is to be $4.50 per​ pound, and there is to be no difference in revenue from selling the new blend versus selling the other types. How many pounds of the Earl Grey tea and Orange Pekoe tea are​ required?

The blend should have _ pounds of Earl Grey and _ pounds of Orange Pekoe.

Answers

9514 1404 393

Answer:

100 pounds Earl Grey300 pounds Orange Pekoe

Step-by-step explanation:

Let x represent the number of pounds of Earl Gray tea in the mix. Then the total cost of the mix is ...

  6x +4(400-x)=4.50(400)

  2x +1600 = 1800 . . . . . . . simplify

  2x = 200 . . . . . . . . . . . subtract 1600

  x = 100 . . . . . . . . . . . divide by 2. Pounds of Earl Grey

  (400 -x) = 300 . . . . . Pounds of Orange Pekoe

The blend should have 100 pounds of Earl Grey and 300 pounds of Orange Pekoe.

_____

Additional comment

It is easy to show that the relationship between the quantities of high-cost (H) and low-cost (L) items in the mix (M) is ...

  fraction of mix that is H is (M -L)/(H -L)

Here, we have H=6, L=4, M=4.5, so the fraction of the mix that is Earl Grey is ...

  (4.5 -4)/(6 -4) = 0.5/2 = 0.25

There are 400 pounds of mix, so 0.25(400) = 100 pounds is Earl Grey.

The solution above is essentially 2-step, so using this relation doesn't necessarily save any steps. It just makes it possible to solve the problem in your head.

K = [ 14 -13 0 3 8 -1 -10 -2 5 ] find the determinant of K

Answers

I suppose K is the matrix

[tex]K = \begin{bmatrix}14 & -13 & 0 \\ 3 & 8 & -1 \\ -10 & -2 & 5\end{bmatrix}[/tex]

To compute det(K), you can use a simple cofactor expansion along the first row:

[tex]\det(K) = 14\times\det\begin{bmatrix}8 & -1 \\-2 & 5\end{bmatrix} - (-13)\times\det\begin{bmatrix}3 & -1 \\ -10 & 5\end{bmatrix} + 0\times\det\begin{bmatrix}3 & 8 \\ -10 & -2\end{bmatrix} \\\\ \det(K) = 14\times(8\times5-(-1)\times(-2)) + 13\times(3\times5-(-1)\times(-10)) + 0 \\\\ \det(K) = 14\times38 + 13\times5 = \boxed{597}[/tex]

evaluate the expression -(5/7)^0

Answers

Answer:

1

Step-by-step explanation:

Fitness 19 charges a $44 sign up fee and $30 per month. LA fitness charges a $99 sign up and $25 per month. For what number of months is the cost the same?

Answers

Answer:

11 months

Step-by-step explanation:

Let x = months

y = total cost

Since Fitness 19 charges $30 a month, we multiply x by 30 like this: 30x

$44 is already added on the cost, so the Fitness 19 equation will look like this:

y = 30x + 44

Since LA Fitness charges $25 a month, multiply x by 25 like this: 25x

$99 is already added to the cost, so the LA Fitness equation will look like this:

y = 25x + 99

We need to find the point where they are both the same

30x + 44 = 25x + 99

First, move like terms to one side by subtracting 25x from both sides

30x + 44 = 25x + 99

- 25x         - 25x

5x + 44 = 99

Then, subtract 44 from both sides

5x + 44 = 99

     - 44 - 44

5x = 55

Finally, isolate the variable, x, by dividing both sides by the coefficient, 5

5x/5 = 55/5

x = 11

Find the area of this triangle. Round to the nearest tenth. 8m, 62°, 12m.

Answers

9514 1404 393

Answer:

  42.4 m²

Step-by-step explanation:

The area can be found from the formula ...

  Area = 1/2ab·sin(C)

  Area = (1/2)(8 m)(12 m)sin(62°) ≈ 42.4 m²

if (a^-1+b^-1)(a+b)^-1=a^mb^n.prove that a^(m-n)=1.​

Answers

Answer:

46666

Step-by-step explanation:

If you can make 12 cookies in 10 minutes, how long does it take to make 200 cookies

Answers

Answer:

12 cookies = 10minutes

200 cookies = x minutes

cross multiply

200×10 = 12x

2000= 12x

divide both sides by 12

X = 166.67 minutes

Step-by-step explanation:

that is 200 cookies will take 166.67 minutes

Answer:

[tex]12 \: cookies \: in \: 10 \: minut \: \\ 1 \: cookie \: in \: \frac{10}{12} = \frac{5}{6} \: minute \\ for \: 200 \: cookies = \frac{5}{6} \times 200 = 166.67 \: minute \\ thank \: you[/tex]

Write the given phrase as an algebraic expression. Use the variable x to represent each unknown number.
A number divided by eleven.
The answer is

(Answer quickly)

Answers

Answer:

x/11

Step-by-step explanation:

The prompt states to use x for each unknown number and then the question says A number divided by eleven so x divided by 11 = x/11

Using BODMAS, I think but please help!!!

And show the steps

Answers

Answer:

= 12

Step-by-step explanation:

2 × {4 ÷ 2 -5}^2 -6

Solve the brackets first

2 × { 2 -5}^2 -6

2 ×{-3 }^2 -6

2 × 9 -6

18 -6

= 12

Step-by-step explanation:

[ 4 ÷ 2 - 5 ] ² - 6

(2 - 5)² - 6

(-3)² - 6

9 - 6

= 3

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