1) 21 - 4x = 53
x =
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2) 1/5 (x - 4) = -3
x =
--------------------------------------------
what does x equal for each question.

Answer:

2n-1

Step-by-step explanation:

Answer:

(2n-2)-3

hope this helps

have a blessed day :)

:D

Answer:

you need to find how many pencils the teacher needs for the class

Step-by-step explanation:

Answer: x =-1

Step-by-step explanation:

4x-18=7x-15

4x-7x=-15+18

-3x=3 , x=-1 since 3/-3=x

Answer:

There are 10 counters in the bag and you want the 4

As their is only one for the probability is

1/10

There are now 9 counters left in the bag.

You only want the even ones , which are 2 6 8 and 10 ( four has been taken out)

There are only four even counters in the bag of nine counters so the probability is

4/9

As you want both of these to occur, you need to multiply them

1/10 x 4/9 = 49/90

Step-by-step explanation:

The probability of getting a multiple of 3 both times is 2/30.

The Probability in mathematics is the possibility of an event in time. In simple words, how many times that incident is happening in any given time interval.

Given:

We are randomly picking two numbers from 1-10.

Multiple of 3 between 1 and 10 are 3, 6, 9.

To find the probability:

Here, we are considering the that the numbers are chosen without replacement.

The probability of getting a multiple of 3 both times,

= 3/10 x 2/9

= 6/90

= 2/30

Therefore, the probability is 2/30.

To learn more about the probability;

brainly.com/question/11234923

#SPJ2

Answer:

r = 20

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

Answer:

a) 7/12

b) 1/6

Step-by-step explanation:

(1)

Number greater than 5 include;

6, 7, 8, 9,10, 11, & 12

= 7

Probability of event = number of outcome ( total number of possible events )

= 7/ 12

(2)

Total number of possible events =  180 * 12

= 2160

Number of outcomes for;

Rolling a 3 = 1 * 120 / 2160 = 120/2160

Rolling a 9 = 1 * 120/2160 = 120/2160

Rolling a 11 = 1 * 120/2160 = 120/2160

120/2160 * 3

360/2160

= 1/6

Answer:

(-6,-2,0,4,5)

Step-by-step explanation:

the y of the order pairs of the relation

Answer: 160 songs.

Step-by-step explanation:

75% hip hop music   -    120 songs

100% all music          -     x songs

Let's write the proportion:

[tex]\dfrac{120}{75} =\dfrac{x}{100} \\\\75x=120 \cdot 100\\75x=12000\\75x : 75 = 12000 : 75\\x = 160[/tex]

Thus, Landon have 160 songs in his music library.

Answer:

the last one

Step-by-step explanation:

Answer:

The answer is C. But I got 350.82

Step-by-step explanation:

The area for one triangle is 24 because A=h(height)b(base)timesb(base)/2. Both the triangles together would make 48 because 24+24=48

The are for one rectangle is 100.94 because A=b(base) times h(height). because there are 3 rectangles we multiply 100.94 times 3 which is 302.82

Then we add up all the areas 302.82+48 to get 350.82

Because this answer is slightly different I would assume it is C.

If my math is incorrect I apologize

I hope this helps! :)

Wait I just realized you have to convert it into square centimeters!

Answer:

Ccc

Step-by-step explanation:

Answer:

She can make 97 ribbons from her roll

Step-by-step explanation:

30.8 divided by 0.625 is 97.28, but the friends would like whole rolls, so I got 97

Answer:

Robin can make 49.28 ribbons. Or if you wish to round, 49 ribbons.

Step-by-step explanation:

Her roll of ribbon is 30.8 ft long.

She needs 0.625 ft for each ribbon.

Divide 30.8 by 0.625

30.8 ÷ 0.625 = 49.28

- GoodThoughts

Answer:

5x - 3x = 10

2(2x - 1) = 46

6x - 15 = 75

x+(x - 10) = 26

Step-by-step explanation:

5x - 3x = 10

2x = 10  Divide by 2

x=5

2(2x - 1) = 46   Distribute the 2

4x - 2 = 46  Add 2

4x = 48  Subtract by 4

x = 12

6x - 15 = 75  Add 15

6x = 90  Divide by 6

x=15

x + x - 10 =26  Add the x's together and the 10

2x = 36  Divide by 2

x = 18

not my work

Answer:

26>42+1/2=100

Step-by-step explanation:

hoppe this help

Answer:

b. $62

Step-by-step explanation:

48.50 * 6 = 291

663 - 291 = 372

372 / 6 = $62

I don't want to tell you all the answers but, question 7 is 30 and question 8 is 47.

Answer:

Step-by-step explanation:

The one all the way on the left is 1. The one next to that is 1/3. The middle one is 3. The one to the right of the middle is 1. The one to the right is 1/3.

Answer:

the scale factor would be 3.5

Step-by-step explanation:

21/6=3.5

-14/-4=3.5

I hope this is what you're looking for :)

can you get a clearer picture pls

the bottom is to blurry

Answer:

you have four walls. two of them 12*8 and other two is 10*8 ( we used 8 in both because its the height of the room) . so it goes( 2*12*8)+(2*10*8) and it goes 352

Step-by-step explanation:

lets say that walls A 12*8 and walls B 10*8. you have 4 walls ta wallpaper .

for walls A= 2*12*8=192

for walls B=2*10*12=160

in total you need 160+192= 352 square feet wallpaper

Answer:

$15. 90

Step-by-step explanation:

3% of 530= 15.9

Answer:

Yea the guys is right. B

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

Answer:

he should have first preformed oprations in the pratheses so he should have done (3+12/3) first to get 3*(3+4)-4 then do (3+4) and have 3*7-4 next he should do 3*7 and get 21-4 do that and get the answer 17

Step-by-step explanation:

Answer:

-13

Step-by-step explanation:

My bad, I did my math wrong. Its -3.

Answer:

-(-5) - 8=

5-8= -3

Step-by-step explanation:

replace the variables with the numbers and solve it like a normal equation

Answer:

C

Step-by-step explanation:

Answer:

food next month should be $59.08 (8% decrease)

Step-by-step explanation:

sorry if i am wrong

Answer:

Step-by-step explanation:

B.