Mathematics High School

The sum of twice a number and 18 is 5 less than three times the number, Write the
equation and find the number.

Answers

Answer 1

Step-by-step explanation:

Let x represent the number.

We have 2x + 18 = 3x - 5, therefore x = 23.

The number is 23.

Related Questions

answers for the 2 boxes please ​

Answers

Answer:

(-3,-6)

Step-by-step explanation:

Can someone please help me

Answers

Answer:

y=89

Step-by-step explanation:

because if you take y-47 okay then you do 47+42 giving you what that ange is because they are the same angle they should both be 42

Are the ratios 5:4 and 17:12 equivalent?

Answers

Answer:

yes

Step-by-step explanation:

These fractions are equivalent because they can be divided by the same number... i think

They are not equivalent because if you but them into fractions and divide the numerator by the denominator they do not end up being the same

Kwan has determined that he can use the expression 2(n+1)−3 to find the number of squares for any step number n. Find an equivalent expression that Kwan can also use. I need help

Answers

Answer:

the answer is 2n-1

Step-by-step explanation:

Answer: 2n-1

Step-by-step explanation:

Help me find the value of "y" thanks

Answers

You would move you positive 3 to the left side so (y) is by itself. So you would have 3x-8=y. Then substitute X=5. So 3(5)-8=y. 15-8=y. 7=y

Answer:

[tex]y=3x-8[/tex]

Step-by-step explanation:

First, you have to isolate y on one side of the equation.

Step 1) Add 5 to both sides (this will cancel out the (-5) on the left)

Step 2) Subtract 3x from both sides (this will cancel out the (3x) on the left)

Step 3) Subtract y from both sides

Step 4) In order to make the desired variable positive, change the sign of everything in the equation

The step shown above will yield the answer of [tex]y=3x-8[/tex]

This year is snowed on five of the 12 Days of Christmas! The snowfall amounts were 2
inches, 5 inches, 3 inches, 1 foot and 9 inches. What was the mean amount of snow for
the 12 days? Round your answer to the nearest

Answers

Answer:

Itz 35 i tink

Step-by-step explanation:

umm i god at mafh

The relationship between the number of boxes of printer paper purchased and total cost is represented in the table below.What is the cost of 1 box of paper?

Use the on-screen keyboard to type the correct answer in the box below.

Answers

Answer:Cost of 1 box of paper is 7.25

Step-by-step explanation:When you look at the table all you really need to do is divide 2 and 14.50 and you'll get you answer

Select the correct answer.
If the zeros of a quadratic function are 3 and 8, what are the factors of the function?
ΟΑ.
(X + 8) and (x - 3)
OB.
(x - 8) and (x + 3)
O C.
(X + 8) and (x + 3)
OD.
(x - 8) and (x-3)

Answers

Answer:

OD

Step-by-step explanation:

The zero x=8 will make the factor (x-8) = 0 and the zero x=3 will make the factor (x-3) = 0.

so it's (x-8) and (x-3)

Add a restaurant the ratio of kids meals sold two adult meals sold was 5:4 if there were 20 kids meals sold what is the combined amount of kids and adult meals sold?

Answers

Answer: The combined amount of kids and adult meals sold = 36

Step-by-step explanation:

Let the number of kids meals sold = 5x and the number of adult meals = 4x

Since total kids meals sold = 20

Then, 5x= 20

⇒ x =4

Adult meals = 4(4) = 16

Combined meals sold  =  kids meals + Adult meals

= 20+ 16

= 36

Hence, the combined amount of kids and adult meals sold = 36

You bought an item for $24.00, but sold it for a 30% mark up in your store. What price did you sell this item for?

Answers

31.20 7.20 profit crccrcrvtbt

Simplify: −5(−4) + 13 =

Answers

Answer:

33

Step-by-step explanation:

-5(-4)= 20

20+13=33

Michael read 135 pages in 90 minutes. Select all of the rates that have the same constant rate of change as Michael's rate. 180 pages in 2 hours 180 pages in 2 , hours 60 pages in 30 minutes 60 pages in 30 , minutes 108 pages in 212 hours 108 pages in 21 half , hours 150 pages in 1 hour 150 pages in 1 , hour 225 pages in 150 minutes 225 pages in 150, minutes 210 pages in 2 hour 20 minutes

Answers

Answer:

180 pages in 2 hours

225 pages in 150 minutes

210 pages in 2 hours 20 minutes

Step-by-step explanation:

135 pages : 90 minutes

= 135/90

= 3/2

= 3 : 2

180 pages : 2 hours

180 pages : 120 minutes

= 180/120

= 3/2

= 3:2

60 pages : 30 minutes

= 60/30

= 2/1

= 2:1

108 pages : 2 1/2 hours

108 pages : 180 minutes

= 108/180

= 18/30

= 3/5

= 3:5

150 pages : 1 hour

150 : 60

= 150/60

= 10/6

= 5/3

= 5:3

225 pages : 150 minutes

= 225/150

= 9/6

= 3/2

= 3:2

210 pages : 2 hours 20 minutes

210 pages : 140 minutes

= 210/140

= 3/2

= 3:2

HELP, NO SCAM ANSWERS PLEASE!

Answers

Answer:

c = 2.99m+ 6.85

Step-by-step explanation:

one time fee of 6.85

2.99 per movie rental

in other words you must pay 6.85

and 2.99 times the number of movies you watch

m = movies watched

c = cost

therefore

c = 2.99m+ 6.85

watching 13 movies at movie mania would mean that m (movies watched) would be 13

put that into the equation:

c = 6.85+ 2.99(13)

c =  6.85+ 38.87

c = 45.72

2x + 1 = 9
is that the answer ?

Answers

Answer:

yes

Step-by-step explanation:

because 9-1=8/2 equals 4 so2x4+1=9

WORTH A BRAINLIEST

A car driving cross-country traveled 180 mites in 4 hours. At this rate of speed, how many mites further will the car travel in the next 3 hours?

Answers

Answer:

I'm sure you mean miles, but the car will travel 135 mites.

Step-by-step explanation:

(180/4)3 = 135 miles. The car will be traveling at 45 miles per hour since 180 miles divided by four hours is 45, then you can multiply that by three to get the distance the car will travel in the next three hours. A function that models this equation is f(x)=45x.

Solve the inequality -20 < 10n

Answers

Answer:

n>-2

Step-by-step explanation:

June was thinking of a number. June doubles it and gets an answer of 98.9. What was the original number?

Answers

Answer: 49.45

Step-by-step explanation:

From the information, we are informed that June was thinking of a number and then doubles it and gets and gets an answer of 98.9.

Let the number be represented by x.

Since she doubles it, thus implies that:

2x = 98.9

x = 98.9 / 2

x = 49.45

The number is 49.45

uhm i dont even know how to ask for help i dont even know what this subject is called but here oh and i have to plot it on a graph which i need helo with too.
​

Answers

Answer:

It is a proportional relationship

Step-by-step explanation:

Here, we want to know if the relationship is proportional or not

Looking at the table, we can see that every value of x multiplied by 4 will

give y

In simpler terms;

y = 4x

Hence, we have established that there is a proportional relationship between the x and y values

Need this very badly giving 10 points​

Answers

Answer:

A is your answer

Step-by-step explanation:

width= 9 cm

length= 5 cm

height= 20cm

formula: 2(lw+lh+hw)

2(5*9+ 5*20+ 20*9)

2(45+ 100+ 180)

2(325)= 650 cm

order these from least to greatest
9, 3, π

Answers

Answer:

3 pi 9

Step-by-step explanation:

Show your work please !!!!!!!!! Will mark Brianliest !!!!!!!!!! Anyone please helpppppp !!!!!!!!!!!!

Answers

Since it is an isosceles triangle 2 lengths are the Same
To find x
5x-9=2x+12
3x=21
X=7
Now plug it in all the equations
5x-9 and 2x+12 are the shortest and the same in length

A random survey of the quality of city parks is taken. Sixty-five percent of the people surveyed were pleased with the condition of the parks. If 182 people were pleased, then how many were surveyed? (sorry if its not a lot of points I just made an account ^ ^)

Answers

118.3
65% of 182 people is 118.3

(4) B is the midpoint of AC, D is the midpoint of CE, find BD.

Answers

Answer:

A :10.5 is the answer

Step-by-step explanation:

Decrease £16855.21 by 3.5%

Answers

Answer:

16265.27765

Step-by-step explanation:

3.5 percent of 16855.21 is 589.93235

16855.21-589.93235=16265.27765

please mark me as brainliest! i'd really appreciate it<3

Solve 3(5x-4) < 15x

O. X < 4
O no solution
O x > -4
O all real numbers

Answers

Answer:

All real numbers

Step-by-step explanation:

3(5x - 4) < 15x

~Distribute left side

15x - 12 < 15x

~Subtract 15x to both sides

-12 < 0

Best of Luck!

The answer is D. All real numbers

help please it's very much appreciated​

Answers

Answer:

62.5

Step-by-step explanation:

hope this helps

what is the answer to..
Negative 10 is no less than 2 times a number plus 14​

Answers

-10 ≥ 2x + 14
-24 ≥ 2x subtract 14 from both sides
2x ≤ -24 read right to left
x ≤ -12 divide both sides by 2

i hope this helped! <3

Find the value of x that makes m|| n.


Answers

Answer:

[tex]\huge\boxed{x=23}[/tex]

Step-by-step explanation:

In order to find the value of x that makes m || n, we need to note something.

When two parallel lines are cut by a transversal, their angle measures will be the same.

Therefore, in order for m and n to be parallel, their two angles listed must be equivalent.

So, we can set these expression equal to each other and solve for x.

[tex]7x - 11 = 4x + 58[/tex] [tex]7x = 4x+ 69[/tex] [tex]3x = 69[/tex] [tex]x = 23[/tex]

Therefore, x=23.

Hope this helped!

Solve number 1 that is in the image

Answers

Answer:

120, 15

Step-by-step explanation:

Answer:

15,120

Step-by-step explanation:

x-axis-15(read vertically)

y-axis-120(read horizontally)

The trip from Carville to Planesborough takes 4 hours when traveling at a constant speed of 70 miles per hour. 2 1 How long, in hours, does the trip take when traveling at a constant speed of 60 miles per hour?

Answers

Answer:

2.5 mph

Step-by-step explanation:

70 miles per hour :4 hours

35 miles per hour:8 hours

1 mile per hour:16 hours

60 miler per hour

do 16/6

2.5 hours

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