An iPhone is on sale for $450. It originally cost $500. What percent off is the sale offering?

Dave's rate of completion is 4/3 walls per hour and this can be determined by using the concept of unit rate.

Given :

The following steps can be used in order to determine Dave's rate of completion:

Step 1 - The concept of unit rate can be used in order to determine Dave's rate of completion.

Step 2 - According to the given data, Dave completes on average 2/3 of a wall in 1/2 of an hour.

Step 3 - Now, let Dave's rate of completion be 'x'.

Step 4 - So, the value of 'x' can be calculated as:

[tex]x = \dfrac{\dfrac{2}{3}}{\dfrac{1}{2}}[/tex]

Step 5 - Simplify the above expression.

[tex]x = \dfrac{2}{3}\times\dfrac{2}{1}[/tex]

[tex]\rm x = \dfrac{4}{3}\;walls \;per \;hour[/tex]

Therefore, Dave's rate of completion is 4/3 walls per hour.

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Answer:

You graph them by using the domain as x and the range y.

Step-by-step explanation:

9514 1404 393

Answer:

  5

Step-by-step explanation:

The degree of the polynomial is the degree of the highest-degree term. The degrees of the terms are ...

  4, 5, 1

The highest degree is 5, so the degree of the polynomial is 5.

Answer:

512

Step-by-step explanation:

square root of 64 = 8

8 x 8 x 8 = 512

Answer:

187

Step-by-step explanation:

fill in (-9) where it says x, so 2(-9)^2 -5(-9) -20, which gives 187

Answer:

thank you for the points :D

Step-by-step explanation:

Answer:

[tex]x>-5[/tex]

The solution graph is also attached below. On the solution graph, the value will be:

Step-by-step explanation:

Given the expression

[tex]-4\left(x\:+\:3\right)\:<\:-2\:-\:2x[/tex]

Expanding

[tex]-4x-12<-2-2x[/tex]

Add 12 to both sides

[tex]-4x-12+12<-2-2x+12[/tex]

[tex]-4x<-2x+10[/tex]

Add 2x to both sides

[tex]-4x+2x<-2x+10+2x[/tex]

[tex]-2x<10[/tex]

[tex]\mathrm{Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right)}[/tex]

[tex]\left(-2x\right)\left(-1\right)>10\left(-1\right)[/tex]

[tex]2x>-10[/tex]

Divide both sides by 2

[tex]\frac{2x}{2}>\frac{-10}{2}[/tex]

[tex]x>-5[/tex]

The solution graph is also attached below. On the solution graph, the value will be:

Answer: no solutions

7x + 5 = 7x - 3

5 = -3                  [ subtract 7x from both sides ]

Since we end up with 5 = -3, a clearly false equation, we conclude that the original equation has no solutions.

i hope this helps! :D

Answer:

empty set

Step-by-step explanation:

Let's solve your equation step-by-step:

7x+5=7x−3

Step 1: Subtract 7x from both sides.

7x+5−7x=7x−3−7x

5=−3

Step 2: Subtract 5 from both sides.

5−5=−3−5

0=−8

So that There is no solution.( empty set .∅)

please make as brilliant.

Answer:

b

Step-by-step explanation:

I got a 100 on this test so try and do well

Given:

Hiroaki says that a constant of proportionality must be a whole number and  cannot be a fraction or a decimal.

To find:

The explanation, why Hiroaki is incorrect.

Solution:

If y is directly proportional to x, then

[tex]y\propto x[/tex]

[tex]y=kx[/tex]

[tex]\dfrac{y}{x}=k[/tex]

where, k is the constant of proportionality.

It means, the constant of proportionality is the ratio of two directly proportional variables.

So, constant of proportionality can be any real.

Thus, the statement that a constant of proportionality must be a whole number and  cannot be a fraction or a decimal is incorrect.

Hence, Hiroaki is incorrect because constant of proportionality can be any real.

Answer:

C: y = -4x + 2

Step-by-step explanation:

y - 6 = -4 ( x + 1 )

y - 6 = -4x - 4

y = -4x + 2

Answer:

$600

Step-by-step explanation:

400*1.5=600

Answer:

11.30 for unstuffed turkey is the lowest unit rate

Step-by-step explanation:

2 unstuffed turkey for 22.78..............22.78/2=11.39 per turkey unstuffed

6 stuffed turkey for 67.80................67.80/6=11.30

Answer:

4.5 pounds

Step-by-step explanation:

Answer:

Length of scale = 15 cm

Width of scale = 5 cm

Step-by-step explanation:

Dimensions of the kitchen of Mai are given as:

Length of kitchen = 6 m

Width of kitchen = 2 m

Scale to be used = 1 to 40

To find:

The drawing with labeling and dimensions of the scale drawing.

Solution:

First of all, let us understand about the concept of scaling.

Scaling is a method to represent big structures on paper.

For this purpose, we decide a scaling factor and draw the big structures on paper by scaling down (making it small) by using a scaling factor.

Here, the scale factor used is 1 to 40.

i.e. 1 unit on scale is equivalent to 40 units on the actual kitchen.

40 units of kitchen = 1 unit of scale

1 unit of kitchen = [tex]\frac{1}{40}[/tex] units of scale

6 m of kitchen = [tex]\frac{1}{40}\times 6\ m = \frac{600}{40}\ cm = 15\ cm[/tex]

Length of scale = 15 cm

40 units of kitchen = 1 unit of scale

1 unit of kitchen = [tex]\frac{1}{40}[/tex] units of scale

2 m of kitchen = [tex]\frac{1}{40}\times 2\ m = \frac{200}{40}\ cm = 5\ cm[/tex]

Width of scale = 5 cm

Please refer to the attached image as well for representation of given scale.

answer:

it should be the graph on the top right!

The graph of the parent function f(x) = 0.75ˣ + 1 is shown in figure.

A relation between a set of inputs having one output each is called a function.

Given that;

The parent function is,

⇒ f(x) = 0.75ˣ + 1

Now,

Since, The parent function is,

⇒ f(x) = 0.75ˣ + 1

Hence, The points on the function are (0, 2) and (1, 1.75).

Thus, The graph of the parent function is given in option 2.

Learn more about the function visit:

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Answer:

32 hot dogs

Step-by-step explanation:

I hope this helps you out!

Answer:

48 hot dogs

Step-by-step explanation:

So every 15 min he can eat 4 hot dogs so add 4 hot dogs each 15 min until you get 3 hours.

Answer:

I think the answer is 42.

Step-by-step explanation:

If there is a 50% increase in members then the number of members would go up 14. Adding 14 to 28, you come away with 42.

Sorry if it's wrong.

Answer:

We know that x is the number of floor tickets they sell, and each one costs $15, then the amount of money they will get by those sells is x times $15, this is:

x*$15.

And y is the number of balcony tickets they sold, each one of these costs $12, then the total amount of money made in those tickets is:

y*$12.

Then the total amount of money that the band made is:

x*$15 + y*$12

And they want to make, at least, $3,000, then we will have the inequality:

x*$15 + y*$12 ≥ $3000

That can´t really be solved, because we have two variables and only one inequality, but this represents the given situation.

Answer:

8+p

Step-by-step explanation:

add 3 plues 5 and you got ur answer

Answer:

x = 6

Step-by-step explanation:

Use distributive property: a(b + c) = a*b + a*c

3(2x - 4) + 6= 30

3*2x - 3*4 + 6 = 30

6x - 12 + 6 = 30

6x - 6 = 30

     6x = 30+ 6

     6x = 36

       x = 36/6

x = 6

Answer:

x = 6

Step-by-step explanation:

Simplify 3(2x-4) first: 3 (2x) 3(-4) =

6x - 12+6 = 30

Combine like terms: -12 + 6 = -6

6x - 6 = 30

Add 6 to both sides: 6x = 36

Divide both sides by 6: x = 6

CHECK:

3( 2(6) - 4) +6 = 30

3 (12-4) +6 = 30

3(8) +6 = 30

24+ 6 = 30

30 = 30

Answer:

56

Step-by-step explanation:

Answer:

the answer is 114,210..................

Answer:

9a to the power 2 +4 is the answer

Step-by-step explanation:

multiple 3a x 3a u wud get 9a to the power 2

-2 x -2 u wud get = 4

then combine the two and write the answer

Answer:

9a² - 12a + 4

Step-by-step explanation:

Given

(3a - 2)(3a - 2)

Each term in the second factor is multiplied by each term in the first factor, that is

3a(3a - 2) - 2(3a - 2) ← distribute both parenthesis

= 9a² - 6a - 6a + 4 ← collect like terms

= 9a² - 12a + 4

Answer:

500

Step-by-step explanation:

Answer:

6552

Step-by-step explanation:

P.S Can I have brainliest?

Answer:

6,552

Step-by-step explanation: