Jake buys this freezer in a sale.
The price of the freezer is reduced by 20%.
(b) Work out how much Jake saves.
Freezer
Original Price
£145

Answers

Answer 1

Answer:

£29

Step-by-step explanation:

20% = 0.2

Take 145 times 0.2 = £29

So, he saves £29

Answer 2

A discrete random variable may take on only a countable number of distinct values such as 0,1,2,3,4,...

Definition of discrete random variable-Discrete random variables are usually (but not necessarily) counts. If a random variable can take only a finite number of distinct values, then it must be discrete. Examples of discrete random variables include the number of children in a family, the Friday night attendance at a cinema, the number of patients in a doctor's surgery, and the number of defective light bulbs in a box of ten.

Explanation-The probability distribution of a discrete random variable is a list of probabilities associated with each of its possible values. It is also sometimes called the probability function or the probability mass function.

Example:-

The cumulative distribution function for the above probability distribution is calculated as follows:

The probability that  is less than or equal to is 0.1,

the probability that  is less than or equal to 2 is 0.1+0.3 = 0.4,

the probability that  is less than or equal to 3 is 0.1+0.3+0.4 = 0.8, and

the probability that  is less than or equal to 4 is 0.1+0.3+0.4+0.2 = 1.

So, finally we can conclude that discrete random variables can only take  a finite number of values.

To learn more about discrete random variables visit:

brainly.com/question/17238189

#SPJ4


Related Questions

A charity is selling brooms to raise funds. Each box has 10 brooms. Each broom is sold for $ 15 . If the charity earns $ 50 profit for each box of brooms, how much does each box of brooms cost the charity, in dollars?

Answers

Answer:

Total cost= $100

Step-by-step explanation:

Giving the following information:

Each box has 10 brooms. Each broom is sold for $ 15

The charity earns $ 50 profit for each box of brooms.

First, we need to calculate the total revenue per box:

Total revenue per box= 10*15= $150

Now, the total cost:

Total cost= total revenue - total income

Total cost= 150 - 50

Total cost= $100

Grace used 1,000 milliliters of apple juice to make one batch of fruit punch. How many liters of apple juice does Grace need to triple the recipe?

Answers

Answer: 3 L

Step-by-step explanation:

Given

Grace uses 1000 mL of apple Juice to make one batch of fruit punch

If she triples the recipe, then the Juice used is also tripled i.e.

[tex]\Rightarrow 3\times 1000=3000\ mL[/tex]

In littres, it is [tex]3000\ mL=3\ L[/tex]

Help me, pretty please

Answers

Answer:

The surface area is 8

and volume is 12.

Let me know if wrong!! :))

Step-by-step explanation:

2
1 point
Shauna buys a full golf club set for $1,145.87 on a 6 month installment plan. If her monthly
payments are $245.82. How much is the finance charge?

Answers

Answer: $329.05

Step-by-step explanation:

Since she pays $245.82 monthly and she is paying for 6 months, the amount paid will be:

= $245.82 × 6

= $1474.92

Since she buys the full golf club set for $1,145.87, then her finance charge will be:

= $1474.92 - $1,145.87

= $329.05

The finance charge is $329.05

Simplify using i.

3+2i
———
6+5i

Answers

28/61 - 3/61i
Pretty sure you have to use a conjugate for this problem.

Which cords are congruent

Answers

Answer:

A chord is a line segment with endpoints on the circle. le Conjecture tells us that the central angles determined by the congruent chords are equal in measure

Step-by-step explanation:

Suppose that $3500 is placed in an account that pays 16% interest compounded each year. Assume that no withdrawals are made from the account. Follow the instructions below. Do not do any rounding.​

Answers

after one year. To do an investment question, we need to use the following formula: A(t) = a(1 + r)t, where:
A(t) = amount after time
a = initial value, $3500
r = rate (as a decimal), 0.16
t = amount of time, 1

Hello! Could y’all please explain why this is Decay and not growth?

Answers

Answer:

This is an Exponential Decay

Step-by-step explanation:

A = 1200(0.85)⁶

The above expression is an Exponential Decay because 0.85 is less than 1

The formula for Exponential Decay

= y = a (1 - r)^t

We equate both equation together

Where

a = 1200

1 - r = 0.85

t = 6

Solving for r

1 - r = 0.85

r = 1 - 0.85

r = 0.15

Converting to Percentage

r = 15% decay rate

4.
Which equation is an identity?


A. 5y + 5 = 5y – 6

B. 8 – (6v + 7) = –6v – 1

C. 3w + 8 – w = 4w – 2(w – 4)

D. 6m – 6 = 7m + 9 – m

Answers

Answer:  C. 3w + 8 – w = 4w – 2(w – 4)

(3w - w) + 8 = 4w - 2w -2(-4)

2w + 8 = 2w + 8

Step-by-step explanation:

Tell whether x and y
are proportional. If so, find the constant of proportionality.
8 = xy

Answers

Answer:

Step-by-step explanation:

y is inversely proportional to x; if x increases, y decreases.

Without more info it is not possible to find the constant of proportionality.  Recheck the original numerical values.  Think:  8 = kxy.  You need to know x and y to find the value of k.

What is the height, x, of the equilateral triangle?

Answers

Given:

The figure of an equilateral triangle with side length 14 in.

To find:

The height x of the equilateral triangle.

Solution:

We know that the height of an equilateral triangle is:

[tex]h=\dfrac{\sqrt{3}}{2}a[/tex]

Where, a is the length of side of the equilateral triangle.

It is given that the height of the triangle is [tex]x[/tex].

Putting [tex]a=14,h=x[/tex] in the above formula, we get

[tex]x=\dfrac{\sqrt{3}}{2}(14)[/tex]

[tex]x=\sqrt{3}(7)[/tex]

[tex]x=7\sqrt{3}[/tex]

Therefore, the height of the triangle is [tex]x=7\sqrt{3}[/tex].

Hopefully a bot doesn't answer this... Also, you do not have to write explanation.

Answers

Answer:

i do not know but i will let you know when i do

Step-by-step explanation:

Tanya has a $50 gift card to spend on Amazon. She wants an airpod case cover for $12.
She also wants to buy some bracelets for $9.50 each. How many bracelets can she buy
without going over?

Answers

Answer:

She can buy 3 bracelets.

Step-by-step explanation:

$50 (Total price) - $12 (Airpod case) = $38

$38 - $9.50 (Bracelets) = $28.5

$28.5 - $9.50 = $19

$19 - $9.50 = $9.5

A. Yes
B.no
Answer: yes!!!!!!!

Answers

yes . Mark me brainliest !!??

Given ^ABC~^EFD, find the value for x.

Answers

Answer:

4

Step-by-step explanation:

2x-3 = 5

2x = 8

x = 4

Hope this helps

I hope this helps you

in similar triangle sides are can be rate

ABC~EFD

AB/EF=BC/FD=AC/ED

5/2x-3=6/FD=4/9

9.5/4=2x-3

11.25+3=2x

2x=14.25

x=7.125

Please help me FAST

Answers

Answer:

I believe it's either equation one or three. hope that helps :)

1 1 - 12 A vehicle uses 8 gallons of gasoline to travel 2 miles. At this rate, how many miles can the vehicle travel per gallon of gasoline?​

Answers

Answer:

4 gallons of gasoline per 1 mile

Step-by-step explanation:

Answer:12 miles per gallon.

The difference of c and 7 is less than or equal to 17.

Answers

| c - 7 | 《 17

- 17 《 c - 7 《 17

add sides 7

- 17 + 7 《 c - 7 + 7《 17 + 7

simplification

- 10 《 c《 24

Answer:

c - 7 ≤ 17

c ≤ 24

Step-by-step explanation:

The difference of c and 7 can be written as c - 7 or 7 - c.

Now, since c - 7 is less than or equal to 17, you need to add ≤ to imply that it's less than or equal to 17.

As always, write the 17 on the other side. Now you have an inequality.

If you just need the equation, it's c - 7 ≤ 17.

But if you want to solve for c, it would be c ≤ 24.

(bring the like terms together and isolate c.)

Write an equation of the line with a slope of -3 and a y-intercept of 0

Answers

Answer:

-3/9=07+90

Step-by-step explanation:

Answer:  y = 0x+3 or y = 3

The slope is 0 and the y intercept is 3. So m = 0 and b = 3.

Plug those into y = mx+b to get y = 0x+3, and that simplifies to y = 3.

This graphs out a horizontal line that passes through the two points (0,3) and (1,3).

If you invested $2000 in an account that paid 8% annual Interest compounded quarterly, how much would the account be worth in 10 years?
Round to the nearest hundredth/cent.

Answers

Answer: A = $4,439.28

Rounded would be $4,439.3

Step-by-step explanation:

Solve for x "Enter the value for x that makes this
true.

– 2 = – 1/2 ( - 12x – 10)

Answers

Hopes this helps:

Answer: x = -7/6

Jordan bought 3 bottles of water at the amusemen park. If the total cost of the water was $6, which equation could be used to find the cost of each bottle of water?

PLEASEEE HELP ME I NEED THIS FOR MY EXAMMM

Answers

3divided by 6=t

T shows the total and it would be 3 divided by 6 because you need to find the total cost.

Add fractions with unlike denominators

Answers

3/10 + 2/6
use their lowest common multiple — which is 30 so:
3/10 -> 9/30 (multiply by 3)
2/6 -> 10/30 (multiply by 5)
then we can get the new equation of:
9/30 + 10/30 = 19/30

5) To find the slope of the trend line below, Riley chose
the points (1, 35) and (2, 25).

Answers

The slope of the trend line is -10

Liz goes on holiday to South Africa

Liz wants to change £850 into south african rand
she wants to get as many 200 rand notes as possible

The exchange rate is £1=18.53 rand

Work out the greatest number of 200 rand notes that liz can get for £850

Answers

Answer:

82 notes

Step-by-step explanation:

The computation is shown below:

Given that

£1= 18.53 rand

and since Linz has £850 so he would get the equivalent of

= $890 ×  18.53

= 16,491.7 rands

Now he wants the 200 rand notes so we considered it as the  highest note

So, the greatest no of 200 notes would be

= 16,491.7 ÷ 200

= 82.45

= 82 notes

help please with math!

Answers

Answer:

1/2

Step-by-step explanation:

If you do this:

20:2=10

14:2=7

12:2=6

You get dimensions of smaller triangle which is a half from bigger one.

Answer:

scale factor is 1/2

Step-by-step explanation:

notice that the sides of ΔABC are one-half of the length of the sides 0f ΔDEF

can someone please help me on Carnegie??

Answers

Answer:

First tell me what's Carnegie

City A and City B are 540 miles apart on a map. The scale on the map is 1inch:60 miles. How many inches apart on the map should City A and City B measure. Explain how you would solve this problem. What would the final answer be?

Answers

Answer: 9 inch

Step-by-step explanation:

Given

Distance between city A and city B is 540 miles

Scale on the map is 1 inch: 60 miles i.e. 1 inch on the map is equivalent to 60 miles in the real situation

suppose the distance between city A and B on the map is x

[tex]\therefore \dfrac{1}{60}=\dfrac{x}{540}\\\\\Rightarrow x=\dfrac{540}{60}=9\ in.[/tex]

Therefore, the distance between city A and B is 9 in.

HELP ME PLEASE AND PLEASE ATTACH THE ANSWER BELOW (NO LINKS!!)

Answers

Answer:

D

Step-by-step explanation:

Answer:

1885

Step-by-step explanation:

Volume = Base x Height

What do I do in order to solve this problem?

Answers

Find the missing side and angle measurements
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