mark is shopping during a computers store 20% sale. He wants to buy computers in the range of $500 to $1000. how much are the computers after 20%

Answer:

7,000

Step-by-step explanation:

You would round up if the next number (next to the thousands, I mean) is 5 or more, and round down if it is less than 5.

Answer:

7,488 = 7,000

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

3 boys

5 girls,

Say that there where "x" number of groups like this, (x will be the total number of groups like this, if one were to divide the population by the number of groups, they would the number of students);

Set up an equation;

x ( 3 + 5 ) = 240

Combine like terms and distribute;

8x = 240

Inverse operations;

8x = 240

/8        /8

x = 30

Substitute back in to find the number of boys;

30 * 3 = 90

Use the rule (a^b)^(c) = a^(bc).

[5^(1/3)]^(3)

5^(1/3)(3)

5^(1)

Answer: 5

Answer: the answer is A

Step-by-step explanation:

Answer:

Step-by-step explanation:

3x-11+6x-10+x=180

10x-21=180

10x=201

x=20,1

Answer:

18+14

Step-by-step explanation:

2×9=18 and 2×7=14

18+14 :)

Answer:

the axis of symmetry should be x= -2

Step-by-step explanation:

Answer: (1-, 1)

Step-by-step explanation:

Thats the middle making it the slope

Answer:

n equals 1.4 your welcome

Answer:

n = 1.4

Step-by-step explanation:

4.8 + n = 6.2

- 4.8        -48

(4.8 - 4.8) + n = (6.2 - 48)

n = 1.4

hello jump in. ok fine abcd

Answer:

z(max) =  256000  Php

x₁ = 10

x₂ = 110

Step-by-step explanation:

Jogging pants design                Selling Price       Cost    

weekly production

 Design A    x₁                                     2500            1750

  Design B    x₂                                    2100            1200      

1. z ( function is : )

z = 2500*x₁  +  2100*x₂       to maximize

First constraint weekly production

 x₁    +   x₂    ≤  120

Second constraint Budget

1750*x₁  +  1200*x₂   ≤   150000      

Then the model is

z = 2500*x₁  +  2100*x₂       to maximize

Subject to

 x₁    +   x₂    ≤  120

1750*x₁  +  1200*x₂   ≤   150000  

General constraints   x₁  ≥  0           x₂   ≥ 0            both integers

First table

z           x₁           x₂        s₁       s₂      cte

1       -2500      -2100    0       0         0

0          1              1          1        0  = 120

0      1750         1200     0       1   = 150000

Using AtoZmath online solver and after 6 iterations the solution is:

z(max) =  256000  Php

x₁ = 10

x₂ = 110

Answer:

x + 3x = 356

4x     = 356

x = 356/4 = 89.

answer: 89

Step-by-step explanation:

hopefully this helped :)

Answer:

15 miles per day

Step-by-step explanation:

75 miles/3 days = 15 miles/1 day

Answer:

P(A)=0.25

P(B)=0.077

P(AB)=0.192

P(BA)=0.083

Check below for the full numbers, I rounded it for you.

Step-by-step explanation:

What is P(A), the probability that the card is a club?

So whenever you get a deck of cards you'll have 52 which have 4 suits, think of it like UNO, and club is one of the suit's name! This mean all this question is asking you is the probability of getting a club out of the 52 cards which is

52/4=13

So we know that there is 13 club cards.

Meaning the probability is a 25% since you can only get it 1/4 of the time.

P(A)=0.25

What is P(B), the probability that the card is a 5?

Same as what I stated earlier but this time you only have 4 cards that can be a "5" out of the 52 cards.

4/52=0.076923

P(B)=0.077

What is P(A and B), the probability that the card is a club and a 5?

Keep a eye on the working "and" this means it's referring to the possibility of getting a club and a 5 and since this can only happen once the chances are extremely slim.

1/52=0.1923076

P(AB)=0.192

What is P(BA), the conditional probability that the card is a 5 given that it is a club?

This assumes that you're only drawing from a deck of ONLY clubs so the chances of getting a 5 in that stack.

1/12=0.08333 (3 keeps going)

P(BA)=0.083

(This one might be wrong since I haven't done conditional probability in a long time but I feel somewhat confident, I do feel confident about the rest so no worries.)

Is P(BA) = P(B)? Are the events A and B independent?

No, P(BA) = P(B) is not true since A and B do influence one another since what if I get a 5 without replacement this results in change of chances of A.

Answer:

1.1/4

2.1/13

3.1/52

4.1/13

5. Yes p(B/A)=P(B) and Yes, events A and B are independent events.

Step-by-step explanation:

khan academy walk through

Answer:

15/2

Step-by-step explanation:

when dividing by fractions, we "flip and multiply"-- therefore:

3 ÷ 2\5 = 3 x 5/2

3 x 5/2 = 15/2

Answer:

Jack has $2.20 left.

Step-by-step explanation:

We have to add 5.50 and 2.30 to find his cost.

2.30 + 5.50 = 7.80.

Then, subtract it from $10.00

10.00 - 7.80 = 2.20

Jack has $2.20 left

hope this helped!

Answer:

Null hypothesis ; H0 : slope = 0

Alternative hypothesis ; H1 : slope ≠ 0

Step-by-step explanation:

Given the claim:

slope of the true line of best fit for Pick Number and Career Length is not zero.

The Null hypothesis H0 : will negate the claim in this scenario ; hence ;

H0 : slope of line of best fit for pick number and career length = 0

The Alternative hypothesis, H1 : is the opposite of the null ;

H1 : slope of line of best fit for pick number and career length ≠ 0

Answer:

If p - q = 10, then p = 10 + q.  Replace the other p with this:

q(2(10 + q) - 10) = 3600

q(20 + 2q - 10) = 3600

q(10 + 2q) = 360

The equilibrium point of a demand and supply function is the point where both functions are equal.

The equilibrium price is 40, and the corresponding demand is 30 supplies

Given

[tex]p- q = 10[/tex] --- the supply function

[tex]q(2p - 10) = 2100[/tex] --- the demand function

Make q the subject in [tex]p- q = 10[/tex]

[tex]q = p - 10[/tex]

Substitute [tex]q = p - 10[/tex] in [tex]q(2p - 10) = 2100[/tex]

[tex](p - 10)(2p - 10) = 2100[/tex]

Factor out 2

[tex]2(p - 10)(p - 5) = 2100[/tex]

Divide both sides by 2

[tex](p - 10)(p - 5) = 1050[/tex]

Open brackets

[tex]p^2 -10p - 5p + 50 = 1050[/tex]

[tex]p^2 -10p - 5p + 50 - 1050 =0[/tex]

[tex]p^2 -15p - 1000 =0[/tex]

Expand

[tex]p^2 -40p + 25p- 1000 =0[/tex]

Factorize

[tex]p(p -40) + 25(p- 40) =0[/tex]

Factor out p - 40

[tex](p+ 25) (p- 40) =0[/tex]

Solve for p

[tex]p = -25[/tex] or [tex]p = 40[/tex]

The price cannot be negative.

So: [tex]p =40[/tex]

Recall that:

[tex]q = p - 10[/tex]

[tex]q = 40 - 10[/tex]

[tex]q = 30[/tex]

Hence, the equilibrium price is 40, and the corresponding number of supplies is 30

See attachment for the graphs of both functions

Learn more about equilibrium price and quantity at:

https://brainly.com/question/11161357

Answer:

9 and 18

Step-by-step explanation:

Since we don’t know the number, I put x as one of the numbers. Since the other number should be two times as large, that would be 2x.

2x+x=27

3x=27

x=9

To find the other number, which is 2x multiply by 2. So 18

Answer:

one number=9

Second number=18

Step-by-step explanation:

The sum of two numbers =27

one number is 2 times as large as the other

Solution

Let one number=X

Second number=2x

X+2X=27

3x=27

X=27/3

X=9

So one number=9

Second number=18

Answer:

9 that what p stands for hope it help

Step-by-step explanation:

Answer:

justin 10+ Amy 20 + henry 40+ do answer would be 10+20+50=70

explanation

I took justin and timed it by two then half of 20 is 10 then timed it by two again which 20*2 is 40

add it all together and you get 70

Amy sent 20 messages, Justin 10 messages and Henry 40 messages in total.

These type of equation consists of equation with unknown variables.

Let the number of messages sent by amy be x

Let the number of messages sent by Justin be y

Let the number of messages sent by Henry be z

If the total number od mesages sent is 70, hence;

x + y + z = 70

If Justin sent 10 fewer messages than Amy, then;

y = x - 10

If Henry sent 2 times as many messages as Amy, then;

z= 2x

Substitute

x + x - 10 + 2x = 70

4x = 70 + 10

4x = 80

x = 20

Recall

y = x  - 10

y = 10

Also z = 2x

z = 2(20)
z = 40

Hence Amy sent 20 messages, Justin 10 messages and Henry 40 messages in total.

Learn more on system of equation here: https://brainly.com/question/13729904

#SPJ2

Answer: A

Step-by-step explanation:

Answer: the answer is A

Step-by-step explanation:

Got it right on edge 2021! Look for your self.

Answer:

Step-by-step explanation:

1) c is hypotenuse. other two are legs. [tex]a^{2} +b^{2}= c^{2}[/tex]

2) e is hypotenuse. other two are legs. [tex]f^{2} +d^{2}= e^{2}[/tex]

3) h is hypotenuse. other two are legs. [tex]g^{2} +i^{2}= h^{2}[/tex]

Answer:

The answer would be B.

Step-by-step explanation:

1:?

4:12

?:27

If 4:12 is a ratio of 1:3 then we can assume that the other unknown numbers also use this same ratio. So the ratio for 1:? would be 1:3 and the ratio for ?:27 would be 9:27 bringing you back to the original ratio of 1:3

Answer:

i think its b 3 ppl 9 cups

Answer:

18 units

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

Answer:

[tex]2x-y=1[/tex]

Step-by-step explanation:

Standard Form of [tex]y=2x+3[/tex]:

Find New 'c':

Answer:

2x-y=1

Step-by-step explanation:

I TOOK THE QUIZ

Answer:D

Step-by-step explanation: