what is the answer to 2x+2x-9=19

Answers

Answer 1

Answer:

x = 7

Step-by-step explanation:

Answer 2

Answer:

x = 7

Step-by-step explanation:

We have to solve for [tex]x[/tex] so we isolate the value of x in the expression.

[tex]2x + 2x - 9 = 19[/tex]

[tex]2x + 2x - 9 + 9 = 19 + 9[/tex]

[tex]2x + 2x = 28[/tex]

[tex]4x = 28[/tex]

[tex]\frac{4x}{4} = \frac{28}{4}\\[/tex]

[tex]x = 7[/tex]


Related Questions

4. Stella is running in the 90 meter dash at her school track meet. If her speed is
6 meters/second, how long will it take her to run 90 meters?

Answers

It would take her about 15 seconds

-68 divided (-4)


Help ASAP

Answers

Answer:

Two negatives = positive (17)

Step-by-step explanation:

Answer:

Today: Wednesday, 14 October 2020

Hour: 12.58 WIB

______________________________

-68 divinded (-4) is 17

why is 6/3 an integer

Answers

because it is a fraction

Hey there!

Answer:

6/3 is not an integer*

Step-by-step explanation:

Integers are just like whole numbers, but they also include negative numbers:

                Integers:  { -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5 }

*Like whole numbers, integers don't include fractions or decimals.

Hope this helps!!

:D

Kelly buys four cardigans of the same price from a apparel store how much will she be billed if each Cardigin cost $79

Answers

$19.75, which is $79 divided by 4 since she’s buying 4 cardigan sweaters for the same price.

Answer:

$316

Step-by-step explanation:

Since each cardigan costs $79 and there are 4 cardigans you would need to multyply 79×4. Which is $316. Kelly would be billed $316 for all four cardigans.

which of the following is equal to (1/a+a)^2 - (1/a-a)^2 ?
A) 0
B) 4
C) 1/a^2 - a^2
D) 2/a^2 - 2a^2
E) 1/a^2 - 4-a^2

Answers

Answer:

B

Step-by-step explanation:

Answer:

I think its b

Step-by-step explanation:

I tried doing the work and got 4 so I hope its b

Question 7. Find M Please hurry :)

Answers

The answer is C

I hope this helps
Ask if you have any questions

What is the value of the expression: 2 x (24 + 8) *
Your answer

Answers

The value is 64.

How I got the answer :

Look at PEMDAS so first is parenthesis

24+8 = 32.

Next multiply 32 by 2 because M is next. 32 times 2 =  64

please put brainliest thanksss

Answer:

64

Step-by-step explanation:

2x(24+8)

2x32 or 32 plus 32

64

What are the coordinates of point A? (8, –6) (–6, 8) (–5, 7) (7, –5)

Answers

Answer:I think it is

7 -5

Step-by-step explanation:

Answer:

D-(7, –5)

Step-by-step explanation:

hope this helps:)

FIRST RIGHT GETS BRAINLIEST

Answers

Answer:

-6 duh its easy right

Step-by-step explanation:

The blue dot represents -6.

Two cars start traveling in the same direction around a circular road that is 80 km long. The speed of one car is 92 km/h and the sped of the other is 68 km/h.
a:
How many minutes after the two cars start traveling will one car lap the other?

Answers

Answer:

200 minutes

Step-by-step explanation:

you first take the diffrence between 92 and 68, which is 12 and divide 80 by 12 which gets you 3 1/3 of an hour convert that to minutes which is 200 minutes

Answer:

200 minutes

Step-by-step explanation: plz?

I have sandwich 11/12 of a foot long and 3/4 of it has pepperoni on it, how much of the sandwich doesn’t have pepperoni on it.

Answers

Answer:

2/12 or 1/6

Step-by-step explanation:

Make common denominators, 3/4 turns into 9/12. Take away 9/12 from 11/12, simplify if needed, and boom! done!

for factoring zero how do i solve? 3x^2-12x=0

Answers

Combine like terms so it would be -3x then divide to the answer would be 0

Triangle ABC with vertices A (-1, 4), B( -4, 1), and C(-1, 1) is reflected across the y-axis and then translated 4 units to the left to form triangle A’B’C’. What are the coordinates of the vertices of triangle A’B’C’?
A
A’ (1, 4), B’ (4, 1), C’ (1, 1)
B
A’ (-3, 4), B’ (0, 1), C’ (-3, 1)
C
A’ (-1, -4), B’ (-4, -1), C’ (-1, -1)
D
A’ (-5, -4), B’ (-8, -1), C’ (-5, -1)

Answers

Given:

Triangle ABC with vertices A (-1, 4), B( -4, 1), and C(-1, 1) is reflected across the y-axis and then translated 4 units to the left to form triangle A’B’C’.

To find:

The coordinates of the vertices of triangle A’B’C’.

Solution:

If triangle ABC reflected across y-axis, then

[tex](x,y)\to (-x,y)[/tex]

[tex]A(-1,4)\to A_1(1,4)[/tex]

[tex]B(-4,1)\to B_1(4,1)[/tex]

[tex]C(-1,1)\to C_1(1,1)[/tex]

Coordinates of image after reflection across y-axis are [tex]A_1(1,4),B_1(4,1),C_1(1,1).[/tex]

Then triangle translated 4 units to the left to form triangle A’B’C’.

[tex](x,y)\to (x-4,y)[/tex]

[tex]A_1(1,4)\to A'(-3,4)[/tex]

[tex]B_1(4,1)\to B'(0,1)[/tex]

[tex]C_1(1,1)\to C'(-3,1)[/tex]

Therefore, the vertices of triangle A’B’C’ are A’ (-3, 4), B’ (0, 1), C’ (-3, 1).

Hence, the correct option is B.

13 over 4 times 19 over 3

Answers

it is 247 over 12 i think

Answer:

13/4*19/3=20.5833 or 20 and 7 over 12


I need help I currently have a c trying to make up some work

Answers

Answer:

y=(-2)

Step-by-step explanation:

x=(-4) so 3x(-4)=(-12) (note: negative times a positive always equals a negative) 12/6=2 so 6x(-2)=(-12) both equations equal the same answer

What is the answer to an addition problem called

Answers

the sum is what it is called

please help me I don't understand ;-;

Answers

Answer:

-3.8

Step-by-step explanation:

to find the average [mean] of a data set, you add all the numbers [-19] and then divide by the amount of numbers [5]

Answer:

-3.8

Step-by-step explanation:You add all of the number together and divde the sum by however man numbers. (-4)+(-7)+(-2)+(-4)+(-2)=-19.-19 divided by 5 equals -3.8

5X+17=7 PLEASE HELP FAST

WITH STEP FAST

Answers

Answer:

x=-2

Step-by-step explanation:

5x+17=7

5x=-10

x=-2

Answer:

you are looking for x right?

Step-by-step explanation:

5x+17=7

5x=-10

x=-2

x=-2 is the answer

David completed 12 math problems in 6 minutes. At this rate, how long will it take him to complete 50 math problems ? P

Please help I’ll mark you as brainliest if correct

Answers

Answer:

25 minutes...

Step-by-step explanation:

This is because if he can complete 12 math problems in 6 minutes when u simplify that u get 2 problems done per minute so that would make 50 problems done in 25 minutes

David take 25 minutes to complete 50 math problems.

What is unitary method?

It is a method where we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit.

Steps to Use Unitary Method

First, let us make a note of the information we have. There are 5 ice-creams. 5 ice-creams cost $125.

Step 1: Let’s find the cost of 1 ice cream. In order to do that, divide the total cost of ice-creams by the total number of ice-creams. The cost of 1 ice-cream = Total cost of ice-creams/Total number of ice-creams = 125/5 = 25. Therefore, the cost of 1 ice cream is $25.

Step 2: To find the cost of 3 ice-creams, multiply the cost of 1 ice cream by the number of ice-creams. The cost of 3 ice-creams is cost of 1 ice-cream × number of ice-creams = 25 × 3 = $75. Finally, we have the cost of 3 ice-creams i.e. $75.

Given:

David completed 12 math problems in 6 minutes.

So, he will solve one math problem in= 6/12 = 1/2 minutes

Now, to complete 50 math problem he needs

=50 x 1/2

=50/2

=25 minutes

Hence, David take 25 minutes to complete 50 math problems.

Learn more about unitary method here:

https://brainly.com/question/22056199

#SPJ2

How do i write the prime factorization of 360 using division by primes?

Answers

360 with a two like on top of the number 360

3602=180

Which number is equivalent to –(–2)?

Answers

The first negative sign cancels out the second, so 2 is equivalent to -(-2).

2

A double negative number becomes a positive.

-(-2) = 2

The answer is positive 2

Jack's grades on his last 4 tests were 85%, 76%, 95%, and 81%. What does he need to get on his fifth test to have an average of at least 85%?

Answers

Answer:

he has to get at least a score of 88

Step-by-step explanation:

Answer:

84.25%

Step-by-step explanation:

85+76+95+81 = 337

337/4= 84.25

so Jack needs to get at least 84.25% on his fifth test to have an average of at least 85%:)

4. What is the slope of the line that contains the points (-3,-9) and (4,-2)?​

Answers

Answer:

The slope is 1

Step-by-step explanation:

Answer:

y = x – 6

Step-by-step explanation:

2) -9u-17 = -5u -7

Yallll help meeeI’ve been stuck

Answers

Answer:

u = -4.8 :)

Step-by-step explanation:

-9u-17=-5u-7

-5u=24

24/-5=-4.8

If an investment account starts with $3900, and grows with 2.1% interest, compounded continuously. How much is the account worth after 10 years? Round your answer to the nearest dollar. Do NOT round until you have calculated the final answer.

Answers

Answer:

If they are asking amount it is $4800.893013; $4800 (nearest dollar)

If they are asking the amount for interest is $900.8930129; $900 (nearest dollar)

Step-by-step explanation:

Compound interest Formula:

Amount = principle( 1+ rate/100)^n

Information from the question.

-So how you put it is the principle is $3900; the rate is 2.1%; the n is 10.

How to apply it?

- Just substitute in the values;

Amount=3900(1+2.1/100)^10

=4800.893013

~4800 ( nearest dollar)

》That is for amount.

Interest=4800.893013-3900

=900.893013

~900 ( nearest dollar)

》That is for interest.

Hope it helps!!!!:))

Answer:

Step-by-step explanation:

A=Pert=3900e(0.021)(10)≈4811.34

The account is worth $4811 after 10 years.

A parking garage charges $8 for the first two hours and $1.75 for each additional hour. The function for the cost of parking in the garage for 2 hours or more is f(x) = 8 + 1.75(x – 2) , where x is the number of total hours parked in the garage. Find and interpret f(7) .

Answers

Answer:

I believe it would be 16.75 but ik not completely sure

The meaning of f(7) is that a vehicle is parked for 7 hours, and the cost of parking for 7 hours will be $16.75.

What is a Function?

A function assigns the value of each element of one set to the other specific element of another set.

Given that the function for the cost of parking in the garage for 2 hours or more is f(x)=8+1.75(x–2), where x is the number of total hours parked in the garage.

Now, the meaning of f(7) is that a vehicle is parked for 7 hours in the parking garage. And its value can be found by substituting the value of x as 7 in the given function,

f(x) = 8 + 1.75(x – 2)

f(7) = 8 + 1.75(7 – 2)

     = 8 + 1.75(5)

     = 8 + 8.75

     = 16.75

Hence, the meaning of f(7) is that a vehicle is parked for 7 hours, and the cost of parking for 7 hours will be $16.75.

Learn more about Function here:

https://brainly.com/question/5245372

#SPJ2

A store pays $122 for a tennis racquet. If the store marks the tennis racquet up 30%, how much are they selling the racquet for?

Answers

Answer:

$158.60 for the racquet

simplify 7^6 x 7^5

(A) 49^11
(B) 49^35
(C) 7^11
(D) 7^35

Answers

Answer:

The answer is C) 7^11

Who here got zoom and can do math?

Answers

Not me I do not have it

lol no use meeting. But zoom is good too.

what is the decimal value of 3/5​

Answers

Answer: 0.6

Explanation: it is fairly easy, a fraction is always division so... all you need to do is 3 divided by 5, 3/5=0.6

Answer:

0.6

Step-by-step explanation:

Just divide 3 by 5. Fractions are also basically a division problem.

Hope this helps! :)

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