Solve the equation.

2x − 3 + 4x = 21

Answers

Answer 1

Answer:

x = 4

Step-by-step explanation:

2x - 3 + 4x = 21

First, combine like terms

6x - 3 = 21

Now, add 3 to both sides of the equation

6x = 24

Finally, divide both sides by 6

x = 4


Related Questions

Two brothers have ages that are consecutive odd integers. The product of their ages is 38 less than the older brother's age squared. What are the ages of the two brothers?

Answers

answer = the elder bother is 17 and the younger one is 15

constructive odd integers= 15 and 17

17×15= 255

255+38 = 293

Square root of 293 = 17

mike and sam are running laps. mike runs a lap in 5 minutes and sam runs a lap in 6 minutes. if mile and sam begin running at the same time, after how many minutes will they cross the starting line at the same time

Answers

answer:

they will never cross....

HELP ME PLSSSSSS Kaitlyn is covering all faces of a tissue box cover shaped like a rectangular prism. The cover has dimensions of 9” x 5” x 3.75”. What is the total area in square inches that she will need to cover?

Answers

Answer:

168.75

Step-by-step explanation:

......

Answer:

168.75

Step-by-step explanation:

1. Which of the following is the process used by plants to release excess water into the atmosphere?

A.

transpiration

B.

condensation

C.

perspiration

D.

precipitation

Answers

Answer:

A. Transpiration

Explanation:

Plants put down roots into the soil to draw water and nutrients up into the stems and leaves. Some of this water is returned to the air by transpiration.

f(x) = -x - 4
g(x) = 2x^2 + 4x + 11
Find: (f*g)(x)

Answers

Answer:

f(x)*g(x)  =   [tex]-2x^{3} - 12x^{2} - 27x - 44[/tex]

Step-by-step explanation:

I am assuming that * means multiplication

(f*g)(x) = f(x)*g(x)

So, f(x)*g(x)  =  (-x-4)([tex]2x^{2} + 4x + 11[/tex]) = [tex]-2x^{3} - 4x^{2} - 11x - 8x^{2} - 16x - 44[/tex]

                                                       =  [tex]-2x^{3} - 12x^{2} - 27x - 44[/tex]

. If you walk around a circular path TWICE, and the circle has a diameter of 100 m, how far did you walk in TOTAL?

Answers

The total distance traveled was 638.3m.

How to calculate the distance traveled?

To calculate the perimeter of a circle we perform the following operations:

We must keep in mind that the radius of a circle is equal to half the diameter, so the radius of this circle is 100m divided by 2.

100m ÷ 2 = 50m

So the radius of this circle is 50m.

Subsequently, to find the perimeter of the circle we apply the following formula:

2 × π × radius of the circle = perimeter of the circle.

2 × 3.14 × 50 = 314.15m

According to this operation, the distance traveled in one lap would be 314.15m. So in two turns it would be:

314.15m × 2 = 638.3m

Learn more about diameter in: https://brainly.com/question/9762612

37 1/2 is what percent of 5

Answers

Answer:

750%

Step-by-step explanation:

We know that 100% of 5 is 5,

200% of 5 is 10,

300% of 5 is 15,

400% of 5 is 20,

500% of 5 is 25,

600% of 5 is 30,

700% of 5 is 35,

800% of 5 is 40.

So 37 1/2 percent of 5 must be between 700 and 800 percent of 5. We also know that 2.5 is 50% of 5, and 35 + 2.5 = 37.5. So 37 1/2 is 750% of 5

Plz, Help me! I will give a point if you help answer! with 5 star rating, Thanks, and Brainliest!

Answers

Answer:

-4/10+(-7/10)= -1 1/10(the bottom left one)

Step-by-step explanation:

starts from 0 and subtract 4/10.  From there you subtract 7/10 more.

During her last basketball game, Carmen made 14 field goals out of 30 attempts. What
percent of field goals did she make?

Answers

46.6%..............................

Answer:

46.6666667

Step-by-step explanation:

14/30=0.46666667

*100=46.6666667

round to 46.7%

what is 48,000 rounded to the nearest ten thousand

Answers

50,000 because 8 is larger than 5 so you round up to 5 in the ten thousands place.

Can someone help with this?

Answers

Answer:

Sorry I couldn't find it.

Step-by-step explanation:

???????????????????????????????

Suppose that a homeowner notices a 20 percent increase in the water bill for July. The homeowner traces this increase to four sources: a running toilet, a dripping faucet, a guest who visited for two days, and a broken sprinkler head. Further study shows that the broken toilet accounts for 8 percent of the increase, the faucet 2 percent, and the visiting guest 4 percent. The homeowner concludes that the remaining 8 percent is attributable to the broken sprinkler head. What method did the homeowner use in drawing this conclusion

Answers

Answer:46

Step-by-step explanation:

Homeowner should use in drawing the conclusion is method of residues.

What is method of residues?

A complex series of occurrences is removed from all known causes. The reason is supposed to be what is left over.

If a set of factors is thought to create a set of phenomena, and all but one of them matches all the phenomena, the remaining phenomenon can be attributed to the remaining factor.

A method of agreement is a way of comparing different examples of the same phenomenon under different conditions.

The method of concurrent variation states that if a specific effect occurs in a variety of settings,

Thus, homeowner should use in drawing the conclusion is method of residues.

Learn more about the method of residues here:

https://brainly.com/question/19131352

#SPJ2

Write an exponential function in the form y=ab^x that goes through points (0,6) and (5, 6144)

Answers

Given:

An exponential function goes through points (0,6) and (5, 6144).

To find:

The exponential function.

Solution:

The general form of an exponential function is

[tex]y=ab^x[/tex]          ...(i)

It goes through points (0,6) and (5, 6144). It means the equation must be satisfied by these two points.

Putting x=0 and y=6, we get

[tex]6=ab^0[/tex]

[tex]6=a[/tex]

Putting a=6, x=5 and y=6144, we get

[tex]6144=6b^5[/tex]

[tex]\dfrac{6144}{6}=b^5[/tex]

[tex]1024=b^5[/tex]

Taking 5th root on both sides, we get

[tex]\sqrt[5]{1024}=b[/tex]

[tex]4=b[/tex]

Putting a=6 and b=4, we get

[tex]y=6(4)^x[/tex]

Therefore, the required exponential function is [tex]y=6(4)^x[/tex].

In a football league, 4 coaches are needed for every 38 players. If 84 players sign up for softball, how many coaches are needed?

Answers

9


8.842 but the answer would have to be rounded because you can’t have .842 coaches... the answers 9!!!!

HELP ME WITH THIS IM DESPERATE!​

Answers

Answer:

i dont know but i think its 50

Step-by-step explanation:

100 i know for sure!

I need the solutions

Answers

Answer:

(-1, -2)

Step-by-step explanation:

The solution is the intersection, which is at (-1, -2)

A cyclist is riding a bicycle whose wheels have a diameter of 2.1 feet. Suppose the wheels turn at a rate of 260 revolutions per minute. (a) Find the angular speed of the wheels in radians per minute. (b) Find the speed of the cyclist in feet per minute. Do not round any intermediate computations, and round your answer to the nearest whole number.

Answers

Answer:

a.1633rad/min

b.1715feet/min

Step-by-step explanation:

We are given that

Diameter of wheel, d=2.1 feet

Radius of wheel, r=[tex]\frac{d}{2}=\frac{2.1}{2}[/tex]feet

Rate=260 rev/min

a. We have to find the angular speed of the wheel in rad/min

1 rev=[tex]2\pi[/tex]radian

Where [tex]\pi=3.14[/tex]

Using the value

Angular speed=[tex]260\times 2\times 3.14/min[/tex]

Angular speed,[tex]\omega=1633rad/min[/tex]

(b)

Speed=[tex]r\omega[/tex]

Using the formula

Speed of  the cyclist=[tex]\frac{2.1}{2}\times 1633[/tex]feet/min

Speed of  the cyclist=1714.65[tex]\approx 1715[/tex]feet/min

Twice a number is 17




Write it as an equation

Answers

The answer would be
~2*x=17~

Hope this helps

Have a great day/night

The cost of seeing a movie was
$12 last year. This year a movie
ticket is $15. What is the percent of
increase from last year to this year?

Answers

there was a 25% increase in the price
Answer:
25%
Explanation:
15-12=3
3•4=12
4:12 = 1:4
1:4= 25:100
25%

If you have any questions just ask

Please help me for brainliest.

Answers

Answer:

Step-by-step explanation:

D

Answer:

D

Step-by-step explanation:

Let's look at the statement.

7y = 14x  and  y = 2x does have infinitely many solutions. Why? Because the first equation can be rearranged to look like the second one. If you divide 7y and 14x by 7, you end up with y = 2x. Look familiar? This means the set of equations has infinitely many solutions.

you drive a car 45 miles at spd r (mph). on return trip, spd is 3/4 r. the round trip took 1 hr 45 min. find avg speed

Answers

Answer:

the agv speed is 223

Step-by-step explanation:

Answer:

51.42 avg mph

Step-by-step explanation:

45+45 = 90 miles total for 1 3/4 hours

90/.75 = 51.42 avg mph

ANSWER NEEDED QUICKLY, RIGHT ANSWER WILL RECEIVE BRAINLIEST ♦️

The distance between two cities on a map is 7.4 centimeters. The map uses
a scale in which 1 centimenter is 15 kilometers. What is the actual distance
between these two cities in kilometers?

Answers

111km

the ratio is 1:15 so you do 7.4×15

It is what my friend say

It’s due late tonight can some pls help me pass

Answers

Answer:

A

Step-by-step explanation:

if it starts at and next is 8 it gos up by 3 each time

Answer:

A

Step-by-step explanation:

5 +3

8 +3

11 +3

14

They are all getting increased by 3

Solve. 7/3x+1/3x=4+5/3x The value of x is

Answers

the value of x is 4.

Answer:

The answer is x = 4

Step-by-step explanation:

Solve for  x  by simplifying both sides of the equation, then isolating the variable.

~Hoped this helped~

I see you have a rob lox pfp

I play rob lox too :] whats ur user??

5 less than a number is under 20

Answers

Answer:

Number = 24

Step-by-step explanation

it is the smallest possible number

Answer:

20>x-5

Step-by-step explanation:

5 3/4 x 2 1/6 ayuda por favor​

Answers

Respuesta: 12 11/24

Espero que esto te ayude!

If MN = x+4 and DE = 3x-2, find x. (More info in pic)

Answers

Answer:  D) 10

============================================================

Explanation:

I'm assuming points M and N are midpoints of segments FD and FE respectively. If that's the case, then segment DE is twice as long compared to segment MN. We consider MN to be a midsegment.

So,

DE = 2*(MN)

3x-2 = 2*(x+4)

3x-2 = 2x+8

3x-2x = 8+2

x = 10

un numero entero y racional

Answers

Answer:

Los números racionales son aquellos números que pueden ser expresados como una relación entre dos enteros. Por ejemplo, las fracciones 1/3 y –1111/8 ambas son números racionales. Todos los enteros están incluídos en los números racionales, ya que cualquier entero z puede ser escrito como la relación z /1.

Step-by-step explanation:

What is the purpose of the viewing and focussing system of the camera?

Answers

Answer: to get a better picture.

Step-by-step explanation:

If you know this multiple choice I think I know the answer but making sure

Answers

Answer: A

Step-by-step explanation:

I think it should be A hope this helps
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