Mathematics College

How do I solve this?

How Do I Solve This?

Answers

Answer 1

Answer:

The answer is 7.5

Step-by-step explanation:

3x+18=9x−27

3x+18−9x=9x−27−9x

−6x+18=−27

−6x+18−18=−27−18

−6x=−45

−6x /−6 = −45 /−6

x =  15 /2  which is equal to 7.5 as a decimal.  

Related Questions

30 is 2/3 of what number

Answers

Answer:45

Step-by-step explanation:

Key Word:of

30*2/3 = 45

Answer:

Step-by-step explanation:

let the number be x.

then,

2/3 of x = 30

=> 2/3x = 30

=> x = 30 × 3/2

=> x = 45

so, the required number is 45 .

hope it helps...!!!

this is for fun type as many Christmas songs as you can below my fav will get brainiest you will get 10 points as well.

Answers

Answer:

"as many Christmas songs as you can below my fav will get brainliest you will get 10 points as well."

Step-by-step explanation:

I typed it.

Answer: um all I want for Christmas and jingle bells.

Step-by-step explanation: make me brainest

Nineteen less than four times a number is greater than forty-seven.
Please i will give away all my points to the person that answers this in number form thanks

Answers

Answer: pretty sure it's the number you multiply by 4 is 17

Step-by-step explanation:

when you multiply 4 and 16 you'll get 64 then you subtract 19 and get 45 which is less than 47 so by reasoning if you were to multiply 4 and 17 you'll get 68 then you subtract 19 from 68 and you should get 49 ( you didn't include how much greater than 47 the number should be but the safest bet would be to use 17)

1 1/3 divided by 3/4

Answers

Answer:

1 7/9

Step-by-step explanation:

Could i have branliest please and a heart

Step-by-step explanation:

11/ 36

hope it helps!

.....

Can you help me solve
-4x+y=6
-5x-y=21​

Answers

Answer:

x = -3, y = -6. (-3,-6)

Step-by-step explanation:

Find the measure of angle A.​

Answers

Answer:

60 degrees sorry if its wrong

Step-by-step explanation:

Samira used the calculator to find 254.3 × 2.5. Which statement best describes her work? Samira is correct. Samira is incorrect. The calculator should not give an answer that includes a decimal point. Samira is incorrect. The correct answer should only be about twice as much as 254.3, and the number on the screen is much larger. Samira is incorrect. The answer on the screen is not large enough to be the correct answer.

Answers

Answer:

A samira is correct

Step-by-step explanation:

Because she did her own expression right, now she has to solve

Answer:

the answer is c

Step-by-step explanation:

I used a caculator

What is the slope of the graph of
4x + 3y = 15?

Answers

Answer:

-4/3

Step-by-step explanation:

y=mx+b

3y=-4x+15

y= -4/3 x +5

m is slope b is y intercept

please help me with this please ​

Answers

First one is A
Second one is C
Third one is B
Trust me

Betsy has to sell carnival tickets worth at least $60. The price of a child ticket is $5, and the price of an adult ticket is $8. Let x be the number of child tickets sold and y be the number of adult tickets sold. which of the following graphs best models this situation.

A) 5x+8y
[tex] \geqslant [/tex]
60
B) 5x+8y
[tex] \leqslant [/tex]
60
C) 5x+8y
[tex] < [/tex]
60
D) 5x+8y
[tex] > [/tex]
60​

Answers

Answer:

A) 5x + 8y [tex]\geq[/tex] 60

Step-by-step explanation:

"At least" translates to the inequality symbol [tex]\geq[/tex] or "greater than or equal to."

Cecilia packed a fruit basket for her new neighbors. If 20% of 30 pieces of fruit were bananas, what fraction of the fruit were bananas? Help!

Answers

Answer:

6/30

Step-by-step explanation:

20 percent of 30 is 6 ^_^

6/30 or if you want it in simplest form it would be 1/5

in 2017, the price of a Forever stamp from the United States Postal Service was $0.49. How many Forever stamps could be purchased for $30.38?

Answers

62 stamps
explanation: 30.38/.49=62

A market research company wishes to know how many energy drinks teenagers drink each week. They want to construct a 80% confidence interval with an error of no more than 0.08. A consultant has informed them that a previous study found the mean to be 7.3 energy drinks per week and found the standard deviation to be 0.7. What is the minimum sample size required to create the specified confidence interval

Answers

Answer: 126 samples

Step-by-step explanation:

Given that :

Standard deviation (σ) = 0.7

Mean (m) = 7.3

Error (E) = 0.08

α = 80%

The sample size n can be obtained using the relation :

n = [(Zcrit * standard deviation) / Error]^2

The Zcritical at 80% = 1.282

Hence,

n = ((1.282 * 0.7) / 0.08)^2

n = (0.8974 / 0.08)^2

n = 11.2175^2

n = 125.83230625

n = 126

Your school carnival charges $2 for admission and $.50 for
each game. You go to the carnival with $5.50. Write and solve
an inequality that represents the possible number of games
you can play. What is the maximum number of games you can
play?

Answers

3.50 i think cause it’s .550 - 350

Answer:

you give $2 for admission so that is $3.50 now you can ride 2 games per ride and the total will be riding 7 games

I need help again please​

Answers

Answer:

I think it's the third one.

Answer:

C

Step-by-step explanation:

The first 5 terms of a sequence are shown below:
3, -2, -7, -12, -17
Which expression can be used to find the nth term?

Answers

Answer:

c: -7

Step-by-step explanation:

the shadow of a 100 m long vertical pole is of 20 m then what will be the angle of inclination round the answer to the nearest tenth of a degree​

Answers

Answer:54.23 m

Step-by-step explanation:I’m not sure this is even close to being right but I tried

please help me i’m so confused

Answers

I think it’s between Graph D and Graph C

I think it’s D. I could be wrong though

What is the predicted value of fuel efficiency (in miles per gallon) for a car with a 2.5 cubic liters engine? Round your answer to two decimals, if needed.

Answers

Answer:

25.92

Step-by-step explanation:

Fuel efficiency is the measure or effort that is required to convert the chemical energy in the fuel to the kinetic energy which the cars needs to move. It is meant by how good or effectively the fuel is utilized by the vehicle. It is the ability of the engine to extract more energy from the fuel.

In the context, the size of the engine is 2.5 cubic liters. Then the predicted value of the fuel efficiency will be 25.92 miles per gallon.

BRANDI WANTS TO CALCULATE THE AVERAGE SPEED
OF A CAR THAT TRAVELED 275 MILES IN THREE
HOURS. WHICH FORMULA BELOW IS CORRECT?
A. S = 3 x 275
B. S = 3/275
C. S = 275/3
D. S = 3-275
MISTER SCIENCE

Answers

Answer:

C. S = 275/3

Step-by-step explanation:

The formula for speed is S = d/t

The d is = 275

The t is = 3

So S = 275/3

Hope this helps ya!!

Which is smaller, one-ninth of 54 or one-fourth of 36?

Answers

Answer:

one-ninth of 54

Step-by-step explanation

54*1/9=6

36*1/4=9

Answer:

1/9 of 54  is smaller than 1/4 of 36

Step-by-step explanation:

1/9 of 54 is 54/9 and that is 6

1/4 of 36 is 36/4 and that is 9.

Please mark brainliest

The graph y=f(x) is graphed below. What is the end behavior of f(x)?

Answers

Answer:

as x → -∞, y → ∞ and as x → ∞, y → -∞

Step-by-step explanation:

Just check the first quadrant of the given graph.

In the first quadrant, when x gets smaller, the value of y is increasing to positive infinity.

In other words, as x → -∞, y → ∞

Now, observe the behavior of the graph in the 4th quadrant.

In the 4th quadrant, when x gets larger, the value of y is decreasing to negative infinity.

In other words, as x → ∞, y → -∞

Therefore, the behavior of f(x):

as x → -∞, y → ∞ and as x → ∞, y → -∞

Therefore, option (C) is true.

The end behavior of a graph is defined as what is going on at the ends of each graph when the function approaches positive or negative infinity.

End behaviour of given graph is,  x⇒ -∞ then y⇒∞ and x ⇒∞ then y⇒ -∞

Since, here a  graph is attached.

From graph it is observed that, when x tends to negative side, graph is going to upward direction. and when x tends to positive side then graph is going to downward direction.

So, when  x tends negative infinity then y tends to positive infinity.

when x tends to positive infinity then y tends to negative infinity.

Therefore, end behaviour of given graph are,

                    x⇒ -∞ then y⇒∞ and x ⇒∞ then y⇒ -∞

Learn more:

https://brainly.com/question/14962400

20 Points!!! Lisa writes 15 pages of a research paper. If she has written 75% of her goal, what is the total number of pages that she wants to write?

Answers

Answer:

I believe that her goal is 20 pages because 75% of 20 is 15.

Step-by-step explanation:

write an equation of the line that passes through 4,-2 and is parallel to y=-4x+1

Answers

Answer:

y=-4x+14

Step-by-step explanation:

A parallel line must always have the same slope, so it must be -4x, and on a graph y=-4x+14 passes through the point (4,-2)

31.8 dived 0.58 answer

Answers

Answer:

54.8275862069

Step-by-step explanation:

If you want rounded than 54

Jon's last paycheck was $342.58. If he worked
35.5 hours, how much does he get paid per hour?

I need the answer to this question how much does he get paid per hour?

Answers

$9.65 per hour jendndnej es

Goodd Luck!
llllllllllaa

Answers

the positive integers are: +2, +11, +8, 28, and 13
the negative integers are: -7, -9, -11, and -3
the 0 should go in the circle between the two charts

Answer:

Step-by-step explanation:

Positive integers = 2 5 8 11 13 28

Negative integers = - 3 - 7 - 9 - 11

The integer that's troubling her the most is 0 because zero is defined as neither positive nor negative

Please answer quick.

Answers

Answer:

e

Step-by-step explanation:

2x + 6y - 3z + 5 - 11(4x - 8y) + 6z - 1

Answers

Answer:

-42x+94y+3z-4

Step-by-step explanation:

2x+6y-3z+5-44x+88y+6z-1

The simplified answer is -42x+94y+3z+4. Hope this helps! :)

A flagpole casts a shadow that is 24 ft long at the same time you cast a shadow that is
4.5 ft long. If you are 6 ft tall, how tall is the flagpole?

Answers

Answer:

32 ft tall

Step-by-step explanation:

24 divided by 4.5 is 5.3 repeating. 6 times 5.3 is around 32

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