3x – 15 = 39
=
What does x equal

Answers

Answer 1
3x - 15 = 39
+ 15 +15

3x = 54 (divide by 3 on each side)

X = 18
Answer 2

Answer:

X=18

Step-by-step explanation:

To isolate X you need to get rid of the -15 to do that you can add 15 on both sides of the equation resulting in 3x=54 now you need to divide both sides by 3 to get x on its own which is X=18.


Related Questions

A truck driver always drives 3 miles per hour. She drives for 5 hours each day. How many miles will she drive in 3 days?

Answers

Answer:

45 miles in 3 days

Step-by-step explanation:

if she drives 3 miles an hour for 5 hours a day that would be 3x5=15

15x3 days=45 miles in 3 days

What is the answer for -6 + x/4 = -5?

Answers

Answer:

4

Step-by-step explanation:

-6 + x/4 = -5 --> add 6 to both sides

x/4 = 1 --> times 4 on each side

x = 4

Your answer would be: x = 4

The diagram shows two parallel lines cut by a transversal.


If the measure of ∠3=(2y+20)∘ and the measure of ∠5=(210−4y)∘, what is the measure of ∠4 ?

Enter the correct answer in the box.

Answers

Answer:

∠4 = 110

Step-by-step explanation:

∠3 + ∠5 = 180    {Co-interior angles are supplementary}

2y + 20 + 210 - 4y = 180

2y - 4y + 20 + 210 = 180    {Combine like terms}

-2y + 230 = 180

Subtract 230 from both sides

-2y = 180 - 230

-2y = -50  

Divide both sides by (-2)

  y = -50/-2

y = 25

∠5 = 210 - 4y

      = 210 - 4*25

       = 210 - 100

∠5 = 110

∠4 = ∠5    {Alternate interior angles are equal}

∠ 4 = 110°

Answer:

Step-by-step explanation:

110

hi please help me thanksss
pls provide workings too thanks :)​

Answers

Step-by-step explanation:

Search for questions & chapters

Class 11

>>Maths

>>Trigonometric Functions

>>Trigonometric Equations

>>Solve for x: sin x + sin 2x...

Question

Bookmark

Solve for x:sinx+sin2x+sin3x=cosx+cos2x+cos3x in the interval 0≤x≤2π.

Medium

Solution

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We write the given equation as

(sinx+sin3x)+sin2x=(cosx+cos3x)+cos2x

or 2sin2xcosx+sin2x=2cos2xcosx+cos2x

or sin2x(2cosx+1)=cos2x(2cosx+1)

or (sin2x−cos2x)(2cosx+1)=0

∴sin2x−cos2x=0 or 2cosx+1=0

If sin2x−cos2x=0, then tan2x=1,

Hence 2x=nπ+π/4

or x=(4n+1)

8

π

.(1)

If 2cosx+1=0, then cosx=−1/2 (2)

∴x=2nπ±

3

or x=

3

6n±2

π

We seek values of x in the interval 0≤x≤2π

In this interval (1) gives

x=π/8,5π/8,9π/8,13π/8. (n=0,1,2,3)

and (2) gives x=2π/3,4π/3. (for n=0,1)

Thus we get the answer

x=π/8,5π/8,2π/3,9π/8,4π/3,13π/8.

Evaluate 3/4+(1/2+1/4)^2⋅2

Answers

Answer:

1 7/8

Step-by-step explanation:

Exact Form 15/8

Decimal Form 1.875

Mixed Number 1 7/8

If you deposit $400 into an account that offers a 5% interest rate. How much interest will you earn after 1 year?

Answers

20.00

...............

what is (x^2+2)(5x+1) multipyed

Answers

Answer:

[tex]5x^{3} + x^{2} + 1 0 + 2[/tex] Is the correct answer

Step-by-step explanation:

in pic

(Credit: Symbolab)

(Hope this helps can I pls have brainlist (crown)☺️)

(x²+2)(5x+1) =5x³+x²+10x+2

hope it helps

Determine whether the ordered pair (0, 2) is a solution to the equation –2x + y = –1.

Answers

Answer:

Below.

Step-by-step explanation:

The ordered pair (0, 2) tells us that x = 0 when y = 2.

We just plug these values in the given equation and see if the left side = the right.

Left side = -2(0) + 2 = 2.

Right side = -1.

- so they are not a solution.

Conner walked 10 miles in 5 hours. What was his walking rate in miles per hour?

Answers

Answer:

Step-by-step explanation:

Hi there!

According to the question;

Distance (d)= 10 miles

Time (t) = 5 hours

Now;

Rate = [tex]\frac{distance}{time}[/tex]

        = [tex]\frac{10}{5}[/tex]

Therefore, the rate of his walking rate in miles per hour is 2miles per hour.

Hope it helps!

Simplify by prime factorization.
15
27

Answers

5/9 is a simplified fraction for 15/27

Answer:

15/27 simplified to lowest terms is 5/9.

Your Welcome!

Please help out. I'm lost. I don't understand this :/

Answers

scalene triangle is a triangle with no congruent sides
isosceles triangle is a triangle with at least 2 congruent sides (i.e. 2 or 3 congruent sides)
equilateral triangle is a triangle with exactly 3 congruent sides.

Graph 15 is an isosceles triangle

Step-by-step explanation:

15 . triangle on number 15 is an isoseles because it has two sides that are equal

and also it has two angles that are equal

16. it is a scalene beacause it has no side that is equal furthermore its angles are not the same they are all different

A blank 2-column table with 3 rows. Column 1 is labeled Column A and Column 2 is labeled Column B. A blank graph has label B on the x-axis and label A on the y-axis. Weather data is collected to analyze wind speed according to temperature. Identify the variables as either input or output to label the table and graph. Column A = Column B = Label A = Label B =

Answers

A= temperature column B= wind speed. Label A= wind speed label B= Temperature

what is the value of Y

Answers

Answer:

y = 150º

Step-by-step explanation:

The sum of internal angles of a triangle must be 180º and the sum of y + (x-20) forms a straight line which is also 180º, so:

2x + x + (x - 20) = 180

4x - 20 = 180

4x = 200

x = 50

x - 20 = 50 - 20

x - 20 = 30

y = 180 - 30

y = 150º

Rachel earns $42,000 per year. Find how much she would make if she was paid weekly, semimonthly, and monthly.

Answers

Answer:

in a monthly shy much $3500

in a weekly she much $807.69

Step-by-step explanation:

Answer:

Below! : )

Step-by-step explanation:

$3,500 monthly

$807.69 per week

$1,615.38 biweekly

Hope this helps! : )

Samuel drives 144 miles in 24 hours. If he continues at the same rate, he will have driven
miles in 6 hours.

Answers

Answer:

36

Step-by-step explanation:

Find the unit rate for each hour

144/24=6

6 hrs every hour

6*6=36 miles in 6 hours

What time is three hours and 30 minutes after 6:30 am

Answers

The answer is 10:00 am

add 3 to 6 then add the 30 minutes to the 30 minutes which equals another hour

6+3=9 and 30+30= 60 which is an hour so the answer is 10:00 am

352x 408 in standard algorithm

Answers

Answer:

Multiply 408 by 352.143616x

Step-by-step explanation:

Lmk if im wrong.

I need help asap please

Answers

Answer:

[tex]p(t) = - 3t + 75 \\ p(t) = 0 \\ - 3t + 75 = 0 \\ 3t = 75 \\ t = \frac{75}{3} \rightarrow \boxed{t = 25 \: mins} \\ 3 \: papers \: per \: mins \\ domain \: \boxed{t \geqslant 0} \: \\ because \: time \: cant \: be \: negative \: on \\ \: this \: perticular \: occasion \\ \therefore \: range \: \boxed {p(t) \geqslant 0 }[/tex]

a car is traveling at a steady speed. it travels 2 1/2 miles in 3 1/3 minutes. how far will it travel in 25 minutes. in 1 hour?

Answers

Answer:

Step-by-step explanation:

The car will travel 30 2/3 miles in 45 minutes.Oct

We have distanced covered in 25 minutes-16.5miles and in 1 hour-40.2miles

please do this for me

Answers

2x+3+51 = 100
2x+54=100
2x= 46
X=23

Colin invests £1200 into his bank account. He receives 3% per year simple interest. How much will Colin have after 4 years? Give your answer to the nearest penny where appropriate.

Answers

Answer:

1440

Step-by-step explanation:

Help!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Slope of a line perpendicular to y=4x+3 is −14 .

Step-by-step explanation:

...............

If you need the graph here it is

The probability that a red block is selected from a bucket is
3/8, and the probability that a blue block is selected is 2/8.
What is the probability that a red block or a blue block is
selected?
a) 1
b) 1/2
c) 5/8
d) 6/8

Answers

Answer:

5/8

Step-by-step explanation:

Since we don't know what the other color (s) are, all we need to do to determine the probability is add the two fractions, and that is your probability.

Answer:

5/8

Step-by-step explanation:

The probability of a red block shows 3/8.  This means there are 8 blocks total and only 3 of them are red.

The probability of a blue block shows 2/8.  Again there are 8 total blocks and only 2 are blue.

So the total number of blocks remains the same....8

The total of red and blue blocks is 3 + 2 = 5

So the probability would be 5/8

At a garage sale, Curtis paid $20 for a box of 40 baseball cards. He plans to re-sell the cards for $4 each. If x is the number of cards that he can re-sell, then the equation y = -20 +4x can be used to determine Curtis's profit (y, in dollars).

Answers

Answer:

180

Step-by-step explanation:

Well, I'm not sure but maybe??

Can y’all please help?

Answers

Answer:

50

Step-by-step explanation:

5x-6=64

x=14

64-14=50

Tom makes $249.25 in 5 days. How much does he make in 4 days?

Answers

Answer:

$199.4 in four days

$49.85 in one day

Step-by-step explanation:

249.25 / 5  =49.85

49.85 x 4 = 199.4

Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. The amount that Tom makes in 4 days is $199.4.

What is multiplication?

Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. For example, 3 × 4 means 3 is added to itself 4 times, and vice versa for the other number.

The division is one of the four fundamental arithmetic operations, which tells us how the numbers are combined to form a new one.

Given that Tom makes $249.25 in 5 days. Therefore, the amount that Tom makes in a day is,

Amount Tom makes in a day = $249.25 / 5 days

                                                = $49.85 per day

The amount of money that Tom can make in 4 days is,

Amount = $49.85 per day × 4 days

              = $199.4

Hence, the amount that Tom makes in 4 days is $199.4.

Learn more about Multiplication here:

https://brainly.com/question/14059007

#SPJ2

For three consecutive homework assignments, each assignment had one more question than the previous assignment. The total number of questions on the three assignments is greater than 51 a.Write an inequality to represent this situation, where q is the number of questions on the first assignment

Answers

The inequality that represents the situation is:

[tex]3q + 3 > 51[/tex]

The first assignment had at least 17 questions.

On the first assignment, there were q questions.Each assignment had one more question than the previous one, so the second had q + 1 questions and the third had q + 2 questions.

The total number of questions is:

[tex]T = q + q + 1 + q + 2 = 3q + 3[/tex]

Since the total is greater than 51, the inequality is:

[tex]3q + 3 > 51[/tex]

Solving the inequality, we have that:

[tex]3q > 48[/tex]

[tex]q > \frac{48}{3}[/tex]

[tex]q > 16[/tex]

Thus, it is found that the first assignment had at least 17 questions.

A similar problem is given at https://brainly.com/question/24514895

At a movie theater, there were 7 kids
for every 2 adults. If kids tickets cost $5
and adult tickets cost $8, how much
money did the theater make if there
were 54 people in the theater?

Answers

There are 12 adults and 42 kids, which in total cost $306

Answer:

$306

Step-by-step explanation:

Adult cost = no of adult × adult cost

no of adult = 12

adult tickets cost = $8

= 12 x $8

= $96

kids cost = no of kids x kids tickets cost

no of kids = 42

kids tickets cost = $5

= 42 x $5

= $210

total sales for the theatre =$96 +$210

= $306

Bonjour, Est-ce que quelqu'un peut m'aider à faire ce devoir. tellement apprécié :)

Answers

Step-by-step explanation:

gud eve.

good nigth

ilove you

PLEASE HELP ASAPP!!!!!!!!! <3

Answers

Answer:

1) 9

2) 8

3) 5

4) 72

5) 40

6) 3

Step-by-step explanation:

1) 5 times 9 equals 45, then you add 5 to get 50.

2) -2 times 8 equals -16, minus 3 is the same as adding a -3 to get -19

3) 7 times 5 equals 35, plus 1 to get 36.

4) 72 divided by 6 equals 12, minus 10 to get 2.

5) 40 minus 14 equals 26, divided by 2 to get 13.

6) 3 times 3 equals 9, minus 5 to get 4 then multiplied by 4 to get 16 as your final answer.

I have to go but here are answers 1-6 I will work on 7-11 later. Sorry! Tell me if you have any questions though!

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