Mathematics College

Write an equivalent expression to x-9y+ 4.
Choose the correct answer below.
OA. X-9y+4 = 4(x - 9y + 1)
OB. X-9 + 4 = x-(-9y) + 4
OC. X-9y + 4 = x +4 +9y
OD. X-9y+ 4 = x +4+(-9y)

Answers

Answer 1
D. x - 9y + 4 = x + 4 + (-9y)

Related Questions

a larger gear wheel has 40 teeth and a small gear wheel has 25 teeth. if the larger one makes 100 revolutions in a minute, how many revolutions does the smaller one make?

Answers

lets calculate gear ration T2/T1
so the gear ratio will be 1.6 it simply means dat if u rotate large gears one full revolution it tends to turn another short wheel to 1.6 revs, so in ur qtion the large whell revs 100 den u must multiply wid 1.6*100= 160 revs

Prove: The sum of two multiples of 3
is a multiple of 3.
3m + 3n = [?](m + n)
= a multiple of

Answers

Just factor out the 3:

3m + 3n = 3 (m + n)

please help asap!!!!

Answers

try 10 as the answer. Good luck

Can someone help me with this problem pls

Answers

a. Slope = 2
b. Slope = 2/3 or 0.66

(Slope = change in y / change in x)

Divya is painting a room. She uses 3/4 gallon of paint to cover 1/5 of a wall. If the walls are all the same size how much paint will she need to cover one wall?

1) 3/20 gallons
2) 3 gallons
3) 3 3/4 gallons
4) 5 gallons

Answers

Answer:

3) 3 3/4

Step-by-step explanation:

Can I please get some help

Answers

Answer:

a)  8

b)  -4

c)  3x² - 4x + 8

d)  20

e)  28

Step-by-step explanation:

a)  (-2)² + 4 = 8

b) 8 + [4(-2) - 4] = 8 + (-8 - 4)  = 8 + (-12) = -4

c) 3(x² + 4) = 3x² + 12

   3x² + 12 - (4x - 4) = 3x² - 4x + 8

d) g(2) = 4     4² + 4 = 20

e) f(2) = 8      4(8) - 4 = 28

what is 2(2 + k) simplified?

Answers

Answer:

4+2k

Step-by-step explanation:

You multiply them out.

2 x 2=4, and 2 x k =2k. Combine them. 4+2k.

Hope I helped!

A car is purchased for $17,500. After each year, the resale value decreases by 20%. What will the resale value be after 5 years?
Use the calculator provided and round your answer to the nearest dollar.

Answers

Answer:

17,500*20%= 3,500 of decrease each year by 5 (3,500x5) 17,500

17,500-17,500= o resale value

Step-by-step explanation:

10. Simplify. * *
-4i (81)
32
50
47
35

Answers

Answer:

55+5=60

Step-by-step explanation:

up

Please help im deperate

Answers

Answer:

Step-by-step explanation:

1. No it is not a solution and doesn't work

2. Yes it does work for both

3. Only works for the first one

Find the slope and y-intercpet. (Hint: Rewrite the equation in slope-intercept form first.)
16x - 4y - 12
m
b
Blank 1
Blank 2:

Answers

Answer

y=4x-3

m=4 or 4/1

b=-3

How many solutions does this system have: y = 3x -3 and y = 3x - 3​

Answers

Answer:

It has 1 unique answer or no solution

Step-by-step explanation:

Answer:

This system has only one solution

Step-by-step explanation:

:)

what is the least common dominator of 3/4 4/5 and 2/3

Answers

3/4 = 45/60, 4/5 = 48/60, 2/3 = 40/ 60

what does x equal -4 = x - 93/-1

Answers

Answer:

x= -97

Step-by-step explanation:

I hope this help!!!

the product of -3/4 and a namber x is -27​

Answers

Answer:

36

Step-by-step explanation:

crossing out the 2 negatives, simplifying

3/4x=27

plz brainliestt



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Answers

Answer:

C=14π

Step-by-step explanation:

C=2πr

14 is the diameter. radius is half of diameter. r=7

C=2π(7)

C=14π

it’s multiple choice please help i’ll mark brainliest !

Answers

THe answer is the third one

Answer:

C?

Step-by-step explanation:

so if x +3y =1 how do i plug it in to -x +2y =4

-x +3y=1-x

3y/3=1-x/3

y=1/3 - x/3

y=-1/3x +1/3

Then I have to plug x into the y= the fractions confuse me

Answers

If x + 3y = 1, then x = 1 - 3y.

Then in the second equation, replace x with 1 - 3y :

-x + 2y = 4

- (1 - 3y) + 2y = 4

-1 + 3y + 2y = 4

-1 + 5y = 4

5y = 5

y = 1   →   x = -2

since x = 1 - 3•1 = 1 - 3 = -2.

Alternatively, you can instead solve for y in the first equation, so that if x + 3y = 1, you get

x + 3y = 1

3y = 1 - x

y = (1 - x)/3

Then replace y in the second equation:

-x + 2y = 4

-x + 2 ((1 - x)/3) = 4

-x + 2/3 (1 - x) = 4

Multiply both sides by 3 to get rid of the fraction:

-3x + 2 (1 - x) = 12

-3x + 2 - 2x = 12

-5x + 2 = 12

-5x = 10

x = -2   →   y = 1

since y = (1 - (-2))/3 = (1 + 2)/3 = 3/3 = 1.

What is the slope of a line that is perpendicular to the line shown on the graph?​

Answers

The answer is C. 1/2

Hope this helps!

For a National Junior Honor Society Induction Celebration, Ahmed is renting tables and chairs. He wants to have only tables for 4 and tables for 6. The total number of people that can be seated in the school cafeteria with these tables is 160.
Write an equation to represent the situation. Let x represent the number of 4 seat tables and y represent the number of 6 seat tables.

Answers

Answer:

There are different combinations you can do.... for example

10 tables of 4 and 20 tables of 6

or

25 tables of 4 and 10 tables of 6

so Im not sure which :/ but the equation would be:

10x+20y=160

or

25x+10y=160

there are different combinations of the two so im  not sure T_T

This question is based on the concept of linear equation. Therefore, the equation would be, 10x+20y=160 or  25x+10y=160 to represent the situation.

Given:

He wants to have only tables for 4 and tables for 6. The total number of tables is 160.

And x represent the number of 4 seat tables and y represent the number of 6 seat tables.

We need to determined an equation to represent the situation.

Let x represent the number of 4 seat tables and y represent the number of 6 seat tables.

According to the question,

There are different combinations we can make as below,

For example :

10 tables of 4 and 20 tables of 6

or

25 tables of 4 and 10 tables of 6

Therefore, the equation would be, 10x+20y=160  or  25x+10y=160 to represent the situation.

For more details, prefer this link:

https://brainly.com/question/11897796

The distance in feet that Karina swims in a race is represented by 5d -5, where d is the distance for eac
What is an expression equivalent to 5d -5?
Choose the correct answer below.
A. 5d - 5 = 5(-5)
B. 5d -5 = -5 + 5d
C. 5d - 5 = 5-5d
D. 5d - 5 = -5(d+5)

Answers

Answer:

C. 5d - 5 = 5-5d

Step-by-step explanation:

The answer is B. 5b-5 = -5+5b

1) Jared got 18 out of 25 questions correct on a quiz. What grade did he get?​

Answers

Answer:

72 or 72/100 or 72% or whatever

Step-by-step explanation:

18/25= .72  Simple!

Can someone please answer 1 for me? Whoever can answer gets brainliest

Answers

ANSWER
Day 1 he gets $7
Day 2 he gets $14
Day 3 he gets $21

EXPLANATION:

add 7 to each day!
Hope that helps <3

Luis solves the following system of equations by elimination.
5s+ 3t = 30
2s+3t=-3
What is the value of s in the solution of the system?

Answers

the value of s is 11

Which is a correct name for the angle shown?

Answers

Answer:

Angle CBA (the last one)

Step-by-step explanation:

Just look at the order of it. It could either be Angle ABC or Angle CBA.

(hope this helps!)

I think it’s the first one of you do t already have a anwser

Can anyone help me out ASAP

Answers

Answer:

3 √ 2 /2

Step-by-step explanation:

Multiply the numerator and denominator by the conjugate.

Exact Form:

3 √ 2 /2

Decimal Form:

2.12132034

Hope this helps! Please consider marking brainliest! I hope you have an amazing day. Always remember, your smart and you got this! -Alycia :)

Marking brainlest

mary has 200ml of hand sanitizer that is 15% alcohol she mixes it with 200ml of a hand sanitizer that is x% alcohol how many ml is in the 2nd hand sanitizer?

Answers

Answer:

I am pretty sure it is 400ml hope this helps

Answer:

2(x+15)

Step-by-step explanation:

Solve the inequality 37v < -18

Answers

The Answer: V< - 18/37

Answer:

I'm not sure

Step-by-step explanation:

sorry need point

Camille buys $50 worth of books at Target. She has a coupon for 20% off her entire purchase. What is the total cost of the books after the coupon is applied?

Answers

Answer:

$40

Step-by-step explanation:

If something is 20% off divide the number by 5 then take that number and minus it from the original number

For example

50 ÷ 5 =10

50 - 10 = 40

I hope this helps!

Slove for N will give brainliest

Answers

Answer:

n= -4/7

Step-by-step explanation:

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