What is the unit rate for headphones if eight headphones cost $390.92



Help me pls I need the unit rate too !

Answer:

110 decreased by 30% is 77.

Step-by-step explanation:

To do this, what we do is simply take 30% of 110 and subtract it from 110.

30% of 110. A trick to easily figure this out is multipling 110 by 30 and dividing by 100.

110*30 = 3300

3300 / 100 = 33

110 - 33 = 77

110 decreased by 30% is 77.

Answer:

62 cubic feet

Step-by-step explanation:

31/2*8*1/2

put into calculator

62

Answer:

50 friends = 20:30

100 friends = 40:60

Step-by-step explanation:

Let candy lovers = cl

Let popcon lover = pl

Let total = t

1) Let's write in ratio form.

pl : cl

4  : 6

2) Add the ratios (4 + 6 = 10) and write it in fraction form multiplying the desired amount.

pl: [tex]\frac{4}{10} * 50[/tex]

cl: [tex]\frac{6}{10}*50[/tex]

3) Solve them.

pl: 20

cl: 30

3) Take the same steps to get the ratio for 100 friends.

pl: [tex]\frac{4}{10} * 100[/tex]

cl: [tex]\frac{6}{10} * 100[/tex]

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

pl: 40

cl: 60

Answer:

-5 is the answer to the question

Answer:

c=3

Step-by-step explanation:

4c+12-2c=5c-3  1. combine like terms

2c+12=5c-3    2. -5c on both sides

-3c+12=3      3. -12 on both sides

-3c=-9       4. /-3 on both sides

c=3

Answer:

The answer is D 10.50x =300.000

Step-by-step explanation:

I figured this out by knowing that to find the time you need to divide the total by the given made per hour which is 10.50 and he would make a total of $300 after about 28 hours so it would be 10.50 x being 28 = 300 dollars which gives the equation 10.50x = 300.000

The mileage that the supervisor will achieve that is within a z-score of 1.5 is; 23.6

Formula for z-score in statistics is;

z = (x' - μ)/s

Where;

x' is sample mean

μ is population mean

s is sample standard deviation

We are given;

x' = 29

Standard deviation; s = 3.6

z = 1.5

Thus;

1.5 = (29 - μ)/3.6

μ = 29 - (1.5 × 3.6)

μ = 23.6

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It's 30 degrees

Step-by-step explanation:

Hope this helps!

Answer:

You have to add 1.5 to each input number to find its corresponding output number.

Answer:

Step-by-step explanation:

Reduce the expression, if possible, by cancelling the common factors.

0.27

Answer:

0.27

0.27247956403

Step-by-step explanation:

hope this helps

Answer:

I attached the answer

Answer:

D

Step-by-step explanation:

[tex]\frac{1}{2}[/tex] (2x + 2) - [tex]\frac{1}{4}[/tex] (3x - 1) = 15

multiply through by 4 ( the LCM of 2 and 4 ) to clear the fractions

2(2x + 2) - (3x - 1) = 60 ← distribute parenthesis and simplify left side

4x + 4 - 3x + 1 = 60

x + 5 = 60 ( subtract 5 from both sides )

x = 55

To find the area of the circle:

   ⇒ must know the area's formula ⇒ [tex]\pi r^2[/tex]

Let's consider the information given

         ⇒ the radius' length is half of the diameter

             ⇒ thus the radius' length is 3.5 in

Let's calculate the area:

    [tex]Area=\pi r^2=\pi (3.5^2)=12.25\pi in^2[/tex]

The problem asks us to leave the answer in terms of '[tex]\pi[/tex]' which means that we won't multiply '[tex]\pi[/tex]' to the final answer, but leave it there,

Answer: 12.25[tex]\pi in^2[/tex] or Choice (B)

Hope that helps!

Flori's Flower Shop have 48 white flowers, 40 red flowers, 30 yellow flowers and 15 purple flowers, whose sum equals 133 flowers, which is fewer than 150 flowers.

Flori's Flower shop owns a quantity less than 150 flowers, in which there are four kinds of flowers according to color: (purple - p, yellow - y, red - r, white - w), each variable represents positive integers. Now we proceed to construct the system of equation that describes the situation:

z < 150     (1)

p + y + r + w = z    (2)

p = y/2     (3)

y = 3 · r/4     (4)

r = 5 · w/6     (5)

By (1) and (3) in (2):

y/2 + y + r + w < 150

By (4):

3 · y/2 + r + w < 150

9 · r/8 + r + w < 150

17 · r/8 + w < 150

By (5):

85 · w/48 + w < 150

133 · w/48 < 150

133 · w < 7200

w < 54.135

Now we assume that w = 48, then we have the following solution for the flower shop: r = 40, y = 30, p = 15.

Flori's Flower Shop have 48 white flowers, 40 red flowers, 30 yellow flowers and 15 purple flowers, whose sum equals 133 flowers, which is fewer than 150 flowers. [tex]\blacksquare[/tex]

To learn more on inequalities, we kindly invite to check this verified question: https://brainly.com/question/20383699

Answer:

uhhhh

Step-by-step explanation: hi

Answer:

4

Step-by-step explanation:

you times 4500 by 0.0575 and then divide 1035 by that number then you get 4

Answer:

9

Step-by-step explanation:

Answer: D

Step-by-step explanation: i took a course on this

Answer:

yes

Step-by-step explanation:

Answer:

375 m

Step-by-step explanation:

25 x 15 =

375

Answer:

Nope

Step-by-step explanation:

3 + 9 + 2 + 7 = 21

21 is not divisible by 9, Therefore, 3927 is not divisible by 9.

Answer:

No. not by a full number

Step-by-step explanation:

Because if we whip out our calculators we get 436.333333333

Answer:

c. 4

Step-by-step explanation:

see how many cubes are already there. Then, subtract that answe from 12 to get how many you need.

Answer:

Count the units in total shown here:

There are 2 units both in the back and front.

So double of 2 means 4 units, there are 4 units on the back and front.

Now count the units between them:

There are 4 units across from them.

Add the units together:

4 + 4

= 8, there are 8 units in total shown in this figure.

But, we need to find how many more units should be added to these 8 units to get a result of 12 units altogether.

So, subtract the 8 units from the 12 units to get the remaining units you would need to add to 8 units to get 12.

12 - 8

= 4, you would need 4 more units so that this figure would have a volume of 12.

Answer:

(pi) is irrational ...........

y = 42°

hope it helps...!!!

Answer:

All you do is

Step-by-step explanation:

1/4 x 6

Then simplefiy your answer

Hey there!

6 * 1/4

= 6/1 * 1/4
= 6(1) / 1(4)

= 6 / 4

= 6 ÷ 2 / 4 ÷ 2

= 3 / 2

≈ 1 1/2

Therefore, your answer is: 1 1/2

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

The quantity of NOx the vehicle will release in 15 years for running 22000miles each year will be 458700 grams.

Multiplication is an operation that represents the basic idea of repeated addition of the same number.

here in the question we will multiply the Nox released by the vehicle per year to 15 years.

Given that: Vehicle releases 1.39 Nox per mile

Now if vehicle is running 22000 miles per year so the Nox released per year will be =22000x1.39=30580 grams per year

For 15 years the NOx released by the vehicle will be = 30580x15=458700 grams

Hence the quantity of NOx the vehicle will release in 15 years for running 22000miles each year will be 458700 grams.

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[tex]\dfrac 12 \div \dfrac 7{16}\\\\\\=\dfrac 12 \times \dfrac{16}7\\\\\\=\dfrac{16}{14}\\\\\\=\dfrac{8\times 2}{7 \times 2}\\\\\\=\dfrac 87[/tex]

Answer:

the answer is 4.5

Step-by-step explanation:

63 = 14

divide 14 on both sides

14/14 cancels out

63/14 = 4.5