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

May I please receive help????
Please

Answers

Answer:

43°

Step-by-step explanation:

Equation:

m∠ABD = m∠1 + m∠2

Substitute:

68° = m∠1 + (m∠1 + 18°)

Solve:

68° = m∠1 + (m∠1 + 18°)

68° = 2(m∠1) + 18°

50° = 2(m∠1)

25 = m∠1

Solution:

Know that we know that m∠1 is, we can add 18* to find m∠2

25° + 18° = 43°

-Chetan K

x-1/2=x-2/3 solve the proportion

Answers

Answer:

0 = − 1 /6

Step-by-step explanation:

Answer:

0

Step-by-step explanation:

To find the value of x, we first find the fraction that is equivalent to 1/3 that has a denominator of 12.

Multiplying or dividing the numerator and denominator of

a fraction by the same number will give us an equivalent fraction.

So if we multiply both the numerator and denominator of

the first fraction by 4, we can see that 1/3 = 4/12.

So the value of x must be 4.

why are 4^0 and (-4)^0 is equal to 1,while -4^0 is equal to -1

Answers

Step-by-step explanation:

According to the zero property of exponents, any number (other than 0) raised to the power of zero is always equal to 1.

The problem with this question is the simple fact that in this format it is confusing.

So, -(4^0) = -1 × (4^0) = -1x1 = -1

and, (-4)^0 =1

Davonte has a yearly gym membership. His yearly
membership fee is $25 plus he must pay $3 each
time he goes to the gym. Last year, Davonte payed
$250 for his gym access. How many times did he
go to the gym?

Answers

Answer:

sorry I don't know about it

How old is Reena now,If 10 years ago she was 25 years old?​

Answers

Answer:

35

Step-by-step explanation:

If she was 25, 10 years ago she has aged 10 years since she was 25 making her 35.

I need help with this:

Answers

Answer:

if of all  parallel lines can't touch

Step-by-step explanation:

In a regular deck of cards, there are 52 total cards, 26 red, 26 black, and 13 of each of the four suits (hearts, clubs, spades, and diamonds). What is the probability, if you draw a card randomly, that the card will be a heart?

Answers

Answer:

13/52 (25%)

Step-by-step explanation:

There are 13 hearts in the deck, and 52 cards in the deck. This means that the probability is 13/52.

What is 9 plus 10???​

Answers

Answer:

21

Here’s legitimate proof that 9+10=21

(9 + 10) (base x) = 21 (base y)

9(1) + [1(x) + 0(1)] = 2(y) + 1

Simplify and solve for y:

2y = 8 + x

y = 4 + x/2

Since we have number bases, we want x and y to be positive integers. The term x/2 requires that x be a positive even number.

Also since 9 is in base x, we have x ≥ 10, as the digit 9 would not be used for a base 9 or smaller.

Thus we have the pairs of solutions:

x = 10, so y = 9

x = 12, so y = 10

x = 14, so y = 12

x, y = 4 + x/2 … Therefore 9+10=21!

Solve for x

A 130
B 120
C 23
D 70

Answers

Answer:

B)120º

Step-by-step explanation:

70+50=x

120=x

Sum of two interior angles=exterior angle

[tex]\\ \sf\longmapsto 50+70=x[/tex]

[tex]\\ \sf\longmapsto x=120[/tex]

Option B

BRAIN LIST
BRAIN LIST

Answers

the answer would be the third choice ;)

In scientific notation, 670,000,000 + 700,000,000 = ?

Answers

Answer:

1.37 x 10 -9

Step-by-step explanation:

6.7x10^8 + 7x10^8 or 1.37x10^9 if you add them before scientific notation

The ratio of boys to girls in Mrs Ronaldo's math class 3 to 1. What percent of the class is girls?

Answers

Answer:  25%

Explanation:

Let's say this class has 3 boys and 1 girl. That means we have 3+1 = 4 students total. The percentage of girls is 1/4 = 0.25 = 25%

___1.which of the following illustrate the union of two sets
___2.which of the following represent the intersection of two sets
___3.which of the following is the factored form x³ + 4x²+4x+16​

Answers

Answer:

I am going to say 3. but not 100% if it right let me know

Shawn planned to run 4.2 miles every day, but yesterday he only had time to run 0.2 of that distance. How far did Shawn run yesterday?​

Answers

Answer:

That would be 4.0

Step-by-step explanation:

if you have 4.2 take away 0.2 that would be 4.0

4.2

0.2

-__

4.0

Hope this helped regards

Complete the ordered pair so that it is a solution of 2/3x + y - 1 = 0. (-6, ___) 3 4 5

Answers

Answer:

(- 6, 5 )

Step-by-step explanation:

Substitute x = - 6 into the equation and solve for y

[tex]\frac{2}{3}[/tex] (- 6) + y - 1 = 0 , that is

- 4 + y - 1 = 0

y - 5 = 0 ( add 5 to both sides )

y = 5

Then solution is (- 6, 5 )

If x2 = 30. what is the value of x? ​

Answers

Answer:

5.4772255750516 that's if it is x squared

What is the easiest way to solve 5-x=10 whilst showing working out​

Answers

Answer is X equals to negative five x=-5

In ASL, the position in which certain signs are completed indicates
A-ability to sign
B-age of speaker
C-place of action
D-time of event

Answers

Answer:

I am pretty sure it is time of event.

Step-by-step explanation:

What is the solution to the equation 5x-7 = V3x+5?

Answers

i am not sure but i got this

Can someone answer this really quick

Answers

NOT CONGREUNT!! There is no axiom to prove congruent.

A _____________ _________________ is used to smother small fries on/in objects or on a person.
PLS HELP ME!!!!

Answers

Answer:

Ketchup, bottle

Step-by-step explanation:

I am confused on this but hope it help you.

Have a great day!

Maya is saving money to buy a game. So far she has saved $6, which is two-thirds of the total cost of the game. How much does the game cost?

Answers

Answer:

9 dollars

Step-by-step explanation:

Since 6 is 2/3 of the total price, and half of 6 is 3, add three to 6 and you get 9.

Answer:

9 dollars

Step-by-step explanation:

if 6 dollors==>2/3from the game totall price

1 complete game how much

6÷2/3=9dollars

Gabriella swims 2 laps per minute. What is the rate unit?

laps per minute
laps
1
2

Answers

Answer:

2

Step-by-step explanation:

Answer:

Laps per minuet

Example:

You are traveling at a rate of 45 miles per hour (or mph). Determine the unit rate and the rate unit.

Solution:

45 is the numerical part of the rate, or the unit rate.

Miles per hour is the unit part of the rate, or the rate unit.

What’s does 120$ plus 40% mean

Answers

Answer:

ur suppose to find how much it is after the discount so for example in question 1 the discount is 40% so subtract that from 100% to get 60% then multiply this 60% by the origanial vaule which is 120 so for the answer for question 1 would be 72. Also when multiplying 60% u dont multiply by 60 u multiply it by 0.6

Hope this help and sry for the bad grammar

please let me know the answer for brainlest this is important!!

Answers

Answer:

31/ 32

Step-by-step explanation:

Switch the fractions and multiply. This will work in place of division.

31/32 is already in the simplest form, you can't simplify it anymore.

-kiniwih426

Josiah skateboards from his house to school 3 miles away. It takes him 36 minutes.

How many minutes will it take Josiah to skateboard to his friend Sebastian’s house, which is 2 1/2

miles from school, if he travels at the same rate that he did from his house to school?


In the box below, type the number that goes in the blank.

Answers

Using the speed - distance relationship, the number of minutes it will take Josiah to cover a distance of 2.5 miles is 30 minutes.

Calculating Josiah's speed :

Speed = (distance ÷ time)

Speed = (3 ÷ 36) = 0.08333 miles per minute.

Time taken to cover a distance of 2.5 miles :

Time taken = (Distance ÷ Speed)

Time taken = (2.5 ÷ 0.08333) = 30 minutes

Therefore, it will take 30 minutes for Josiah to cover a distance of 2.5 Miles

Learn more : https://brainly.com/question/18112348

Solve for x. Remove the fractions first. 3/5(x-5)=-2/3

Answers

Answer:

x = 35/9 or 3 8/9

Step-by-step explanation:

removing the fractions implies using the distributive property, which is multiplying each term outside the parentheses by each term inside

in this problem, after distributing 3/5 we get:

3/5x - 3 = -2/3

we want to isolate the 'x' so we undo subtraction first by adding 3 to each side to get:

3/5x = 9/3 - 2/3

3/5 x = 7/3

x = 7/3 × 5/3

x = 35/9

3/5x = 7/3

we can get the 'x' by itself if we multiply each side by the reciprocal of 3/5, which is 5/3 to get:

x = 7/3 × 5/3

x = 35/3

can i please get some help here its math

Answers

x is 9


12x + 17 = -1 + 14x
18 = 2x
x = 9
-1+14x=12x+17
+1 +1
14x=12x+18
-12x -12x
2x=18
/2 /2
X= 9

what is the slope of the line that that contains these points ? x 5 6 7 8 y -5 -6 -7 -8

Answers

Answer:

0

Step-by-step explanation:

No Link or I’m blocking you :)

Answers

Answer:

- 55

Step-by-step explanation:

20 - 15(2²· 5/4) =      Exponent20 - 15(4 · 5/4) =       Parenthesis20 - 15(5) =               Multiplication20 - 75 =                   Subtraction- 55
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