Mathematics College

Which pair of expressions are equivalent?


27x + 45y and 7(9x + 7y)

2x + 18y and 2(x + 9y)


2(15x + y) and 30x + 15y


10(4x + 5y) and 20x + 10y

Answers

Answer 1

Answer:

second one

Step-by-step explanation:

Because when you try to remove the brackets then you should multiply coefficient of x and coefficient of y by 2

So it will be 2x+18y

2*9=18

Related Questions

Which point represents the opposite of —5 on the number line?

Answers

Answer:

5 :)

Step-by-step explanation:

The answer that points the opposite of -5 is 5

Can someone help me pls

Answers

Answer:

AB is not a tangent

Step-by-step explanation:

yOA^2=OB^2+AB

AB y a tangent

19^2=361,15^2=225, 8^2+64=289

So here the tangent isn't a tangent.

Hope it helps.....

What is the slope for a line that is perpendicular to the line y = 4x + 8?​

Answers

Answer:

m2 =1/4

Step-by-step explanation:

m1 . m2 = 1

m1 is given 4 then

4.m2 =1

4.m2/4 =1/4

m2 = 1/4

Hello there!

The slopes of perpendicular lines are opposite reciprocals.

So, if one line has a slope of 4, then the slope of the line perpendicular to it is the opposite of 4 flopped over (-1/4)

And we're done! Hope it helps you!

If you have any questions, feel free to ask!

~An excited gal

[tex]MagicalNature[/tex] here to help

calculate (4-3,5(2 1/7-1 1/5)):0,14​

Answers

Answer:

sin (330)

cos (390)

csc (60)

------------------------------------------------

Hope this helps!!! :)

Cory writes the polynomial x7 + 3x5 + 3x + 1. Melissa writes the polynomial x7 + 5x + 10. Is there a difference between the degree of the sum and the degree of the difference of the polynomials?

Answers

Answer:

Yes??

Step-by-step explanation:

7+3x5+3x+1

7+15+3x+1

22+3x+1

3x+23

7+5x+10

5x+17

Yes, much difference

---

hope it helps

sorry if i'm wrong, sum of the x's confused me

Answer:D

Step-by-step explanation:

An airplane is traveling at an altitude of 30,000 feet
above sea level and needs to get above 35,000 feet.
The airplane can climb 500 feet every minute. How
long will the airplane need to travel to get above 35,000
feet?

Answers

Answer:

Solution in photo

What’s the correct answer for this question?

Answers

ANSWER

l

Or

Or

EXPLANATION

The given line has slope,

and

We can find the equation in the point slope form, which is given by,

We substitute the point and slope to get,

We can also simplify further to get,

We make y the subject to get,

This is called the slope intercept form.

We could also write in standard form to get

Or

John buys an item that costs $50.00 is marked 20% off. Sales tax for the item is 8%. What is the final price that John pays, including tax?

Answers

Answer:

$43.20

Step-by-step explanation:

20% of $50.00 is $10.00. $50 - $10 is $40. 8% of $40 is $3.20. Since this is tax, you must add it. $40+$3.20 = $43.20

On which day of the month were you born?

a Categorical
or
b Numerical​

Answers

Answer:

a (typing more bc of limit lolol)

PLEASE HELP NO SCAM LINK OR REPORTED :) THANKS

Answers

Answer: b

Step-by-step explanation:

2x is x doubled

and then add 5 to the product

A card is picked at random from a pack of 52 playing cards. The probability that it is a 6

Answers

Answer: 4/52 = 1/13

Step-by-step explanation: Every card in the deck has 4 suits which means that there will be 4 sixes in the deck so the probability will be any of the 4 out of the whole 52 or 1/13.

Brainliest plz

Solve the equation for s.P-5=3s+8solve for

Answers

Answer:

here you go! i couldnt write it but Goodluck! :)

Step-by-step explanation:

500 people were surveyed about their favorite type of pet. 55% of the people said
"dog", 1/10 said "cat", 0.3 said "bird", and the rest said "other". How many people
responded "other"?

Answers

Answer:

25/500 or 5% said 'other'

Step-by-step explanation:

55% = 275 (dog)

1/10 = 50 (cat)

0.3 = 150 (bird)

Total = 475

475 out of 500 (95%) gave an answer other than 'other'

most adult medication doses are for a person weighing 150 pounds. for a 45 pound child, the adult dose should be multiplied by 0.3. if the child's dose of a decongestant is 18 milligrams, what is the adult dose?

Answers

Answer: 60

60 divided by 0.3 = 18

A box is being packed with cubes that measure 1 cubic foot. What is the volume of the box in cubic feet

Answers

Answer:

81 cubic foot

Step-by-step explanation:

It is given that the box is packed with cubes whose side is 1 foot. So the volume of one cube is 1 cubic foot.

Now from the figure, we can see that :

Number of cubes fitting the box across its length = 9 cubes

Number of cubes fitting the box across its width = 3 cubes

Number of cubes fitting the box across its height = 3 cubes

And each of these cubes measures 1 x 1 x 1 cubic foot

So the volume of the box can be found out by:

Volume = length x width x height

             = 9 x 3 x 3

             = 81 cubic foot

Therefore volume of the box is 81 cubic foot.

PLS HELP WILL GIVE BRAINLIEST IVE BEEN ASKING FOREVER :(((((

Answers

Answer:

     __

C) 0.36

Step-by-step explanation:

4÷11= 0.36363636363636

so it's 0.36 with a line over it indicating a repeating decimal

The exchange rate is 156 pesos for 1 US dollar. You have $20.00 US. How many pesos do you have?
A. $128.00
B. $0.13
C. $3,120.00
D. $312.00

Answers

Step-by-step explanation:

C you are gonna have 3,120.00 pesos

Tony weighs his pet turtle on a scale in his bathroom. The turtle weighs 6 1/4 ​ pounds. His turtle weighed 3 1/6 ​ pounds when he first got him. About how much more does his turtle weigh now?

Answers

3 1/12. Find the lowest common denominator. Multiply the the numerator and denominator by that. Then simplify.

chose the number equal to -9 times -1/3

Answers

i’m pretty sure it’s 3. The number equal to -9 times -1/3 is 3

tony completes one lap of a track every 20 seconds. diana completes one lap of the same track every 55 seconds. suppose tony and diana start at the starting line at the same time. how many seconds will it be before they cross the starting line at the same time again?​

Answers

Answer:

220 seconds.

Step-by-step explanation:

55, 110, 165, 220.

20,40,60,80,100,120,140,160,180,200,220.

Both have 220 in common so will cross at 220 seconds at the same time.

GCF of 48, 36, and 16. (this is all I need thx) :)

Answers

Answer:

4

Step-by-step explanation:

16=2^4

48=2^4·3

36=2²·3²

GCF=2^2

=4

hope this helps :)

A family buys 4 airline tickets online. The family buys travel insurance that costs ​$19 per ticket. The total cost is ​$752. Let x represent the price of one ticket. Write an equation for the total cost. Then find the price of one ticket.

Answers

Answer : 169

Step-by-step explanation:

4(x+19) = 752

4x +76 = 752

4x = 752 - 76

x = 676/4

x=169

Hope this helps ;)

Please mark me the BRAINLIEST

Alice has 5 quarters and 2 nickels. How many cents does Alice have

Answers

Answer:

Alice has 135 cents, or $1.35.

Step-by-step explanation:

A quarter is worth 25 cents.A nickel is worth 5 cents.Multiply 25 by 5, since there are 5 quarters. That will give you 125.Multiply 5 by 2, since there are 2 nickels. That will give you 10.Add 125 and 10. That will give you 135, which is your answer!

Find the vertex of the parabola y = x2 + 5x.

Answers

Write the equation as a mathematical expression.
y = x^2+5x

Rewrite the equation in vertex form
y = (x+(5/2))^2 -(25/4)

Find a h and k using the vertex form y=a(x-h)^2 + k
a=1
h=(-5/2)
k= (-25/4)

answer: (-5/2 , -25/4)

What is the value of x in this figure?
Enter your answer in the box.
x=

Please help meeee!!

Answers

Answer:

x=48°

Step-by-step explanation:

We two lines cross over each other, making four angles, the angles opposite each other are equal. They're called vertically opposite angles.

x=48 degrees
extra characters:hsjahjshajsjanns

43.1424 divided by 8.56

Answers

Answer: 5.04

Step-by-step explanation:

the answer is 5.04 :p

What App or what Website can help me solve problems of Statistics? ​

Answers

the varsity tutors ap statisyics app (app)

Four friends each took a different path walking from the drinking fountain to the cypress tree. Who walked the farthest?
Rowan 150yd
Janelle 429ft 8in
Domingo 130yd 2ft
Lydia 460ft

Answers

Lydia because when you convert all of the distances into inches, Lydia’s total distance is 5520 inches.

multiply the polynomial
(x-1)(2x^2-5x+1) 

Answers

Answer:

2x^3 - 7x^2 + 6x - 1

Step-by-step explanation:

Thank me later lol.

which names apply to the number
48

integer
irrational
real
whole
rational​

Answers

Answer:

All except irrational apply to the number 48

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