Kyung bought 3 CDs that cost x dollars each, 2 DVDs that cost $10 each; and a book that cost $15. Write an expression in simplest form that represents the total amount that Kyung spent

Answer:

0.23$

Step-by-step explanation:

16 ounce box of cereal is priced at =3.68$

∴1 ounce box of cereal is priced at=(3.68/16)$

                                                         =0.23$

Answer:You would need to do 10.5/3.5. This equals 3ft

Step-by-step explanation:

Answer: 3x^2 + 25x + 1

Step-by-step explanation:

3C + B

=> 3(x^2 + 8x + 3) + (x - 8)

=> 3x^2 + 24x + 9 + x - 8

=> 3x^2 + 25x + 1

Answer:

0.1

Step-by-step explanation:

m = 2.5

n = 5

m+(79)/n

2.5 + 7 - 9

=0.5

divide by 5

= 0.1

Answer:

multiplying by 1.44 is the same as increasing by 44%

Step-by-step explanation:

this is because 44+100 divided by 100 is 1.44

Answers:

1.  y = 3/5 x - 13

2. y = 1/11 x + 2/11

{ i hope this helps :) i'm sorry if its wrong }

Answer:

3(7-2y)=9

Because there is no symbol between the 3 and the "(" we can tell that it wants you to multiply.

With the distributive property you must distribute the 3 within (7-2y)

To that you would multiply 7 by 3, and multiply -2y by 3. This would get you:

21-6y=9

To get y you must isolate it, the first step to isolate it is remove the number with no "y" next to it. Which is "21" Also for further problems your way, You should add/subtract/divide/multiple the number that does not have the same or even a variable as the variable you are trying to find to the other side.

In this case it would be subtracting 21 from the left side and subtracting it to the right side which would give us: 6y=-12

(Because there was already a number with no variable: "9" you will subtract 21 from 9 which is why you get -12).

Next you will further isolate the y by removing the -6. "-6y" means -6 multiplied by y. So you will divide -6 from the left side AND the right side.

-6y ÷ -6 = y ; -12 ÷ -6 = 2

y=2

More tips: When you are moving something to the other side always do the opposite to remove it from one side and move it to the other. Example: -12 + y = 5

You want to move the -12 to the right side. So you need to remove "-12" from the left side by ADDING 12 because -12 + 12 = 0.

Now you simply add it to the right.

Another example: 4y = 8

Because 4y is multiplication (4 times y) you must divide it from each side to isolate the y! : y=2

If you divide a number from the left side, you must also divide it from the right side. If you add a number on the left side, you must also add it on the right side. Same goes for subtraction and multiplication. Think like that!

Step-by-step explanation:

So ya

Answer:

y=2

Step-by-step explanation:

3(7 – 2y) = 9

/3              /3

(7-2y)=3

-7       -7

-2y=-4

/-2  /-2

y=2

Answer:

Well I believe 1 x 649 equals 649 units as the area...

I tried my best! Hope this helps you!

Answer:

Step-by-step explanation:

5x-14=8x+4

-5x. +14    -5x. +14

3x=18

x=6

7x-4=3+8x

-7x. -3   -7x -3

x=-7

Answer:

27

Step-by-step explanation:

155 , 152 , 149

term rule = n- 3

30th term

n-3

substitute n for 30

30-3=27

Answer:

68

Step-by-step explanation:

D = -3

an = a1 + (n-1)d

a30= 155 + (30-1)-3

a30 = 155 + 29(-3)

a30 = 155 + (-87)

a30 = 68

Answer:

I believe it's B

Step-by-step explanation:

Answer:

7 feet is your answer because by time the ladder reach the side of the house from 72 degree angle if you measure it right and cross path with the correct tools you will see that it reaches 7 ft

Answer:

NO

Step-by-step explanation:

No she does not have enough money to buy 8 pounds. because for two pounds it costs 3.78 and with 15$ she can buy like six?

Answer:

fourth one

Step-by-step explanation:

Answer:

y= 65x+5

200 miles from the starting line

Step-by-step explanation:

so sorry no one has helped you but i hope this helps!

in order to find the slope intercept equation of this we have to look at the information. it says charlie has a 5 mile headstart and so that gives us our y-intercept or B

and then it says he goes 65mph meaning every hour he will go 65 miles so that gives us 65x because the x will represent the hours he is driving

so that leaves us with our equation of y=65x+5

and we have the plus 5 at the end because he will always have that 5 mile headstart

and then for the second part of the question it says where will be at 3 o'clock

so that means if he starts at 12 and now its 3 that means he drives 3 hours

so if you plug the 3 hrs into the equation we just created

it will give us 200 miles from the starting point at 12pm.

anyways hope this helps if it did please leave a like, rate it, and give me the brainliest if possible.

have a great day!

Answer:

I believe it is answer B if it's wrong I'm very sorry/

Step-by-step explanation:

Answer:

X>2

Step-by-step explanation:

Subtract

1

1 from both sides. Simplify

5

−

1

5−1 to

4

4. Divide both sides by

2

2. Simplify

4

2

2

4

​

to

2

You can use cymath

Answer:

x > 2

Interval notation: [tex]\left(2,\:\infty \:\right)[/tex]

Step-by-step explanation:

Starting inequality: [tex]2x+1>5[/tex]

Subtract 1 from both sides: [tex]2x>4[/tex]

Divide by 2 on both sides: [tex]x>2[/tex]

Answer:

you have all of them right just make sure for number six you have 1/3125. you have all the work im not sure what i should solve.

Answer:

There would be 20 gallons in her pool

Step-by-step explanation:

Answer:

4t and t+t+t+t

Plz mark as brainliest

Answer: 86

Step-by-step explanation:

I got it right on edge 2020

Answer: A.1.5 hours = 90 minutes

B.2.4 x 9= 21.6 miles

Step-by-step explanation:

Answer:

89

Step-by-step explanation:

hope this helps!

please mark me as brainliest! thanks!

Answer:

-12x

Step-by-step explanation:

Answer:

-12

Step-by-step explanation:

-4+ -8= -12

anything times 1 is its self so that's ur answer