Mathematics College

Bags of sugar come in 3 sizes:
Small bag: A 250 g bag costs 60p.
Medium bag: A 500 g bag costs £1.30.
Large bag: A 3 kg bag costs £7.50.
Calculate the cost of 3 kg for the small and medium bags.
Give your answer in pounds to 2 dp.
Write the bag that is the better value in the comments.
​

Answers

Answer 1

Answer:

Small bag: £7.20 for 3 kg

Medium bag: £7.80 for 3 kg

Best value: small bag

Step-by-step explanation:

3 kg = 3000 g

Small bag: 60p/250 g = 0.24p/g

For 3000 g: 0.24p/g * 3000 g = £7.20

Medium bag: £1.30/500 g = 0.0026 £/g

For 3000 g: 0.0026 £/g * 3000 g = £7.80

Large bag:

For 3000 g: £7.50

Best value: small bag

Related Questions

x P(x) 0 0.25 1 0.3 2 0.1 3 0.35 Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal places

Answers

Answer:

The standard deviation of this probability distribution is 1.2.

Step-by-step explanation:

We have that:

P(X = 0) = 0.25

P(X = 1) = 0.3

P(X = 2) = 0.1

P(X = 3) = 0.35

Mean:

Each value multiplied by its probability. So

[tex]M = 0*0.25 + 1*0.3 + 2*0.1 + 3*0.35 = 1.55[/tex]

Variance:

Sum of the squares of the values subtracted from the mean, and multiplied by its probability.

[tex]V = 0.25*(0-1.55)^2 + 0.3*(1-1.55)^2 + 0.1*(2-1.55)^2 + 0.35*(3-1.55)^2 = 1.4475[/tex]

Standard deviation:

Square root of the variance. So

[tex]S = \sqrt{V} = \sqrt{1.4475} = 1.2[/tex]

The standard deviation of this probability distribution is 1.2.

A school has 8 periods at day each of 45 minutes duration. How long would each period be ? The school has 6 periods a day? (assuming the number of school hours to be the same)​

Answers

Answer:

The school has 6 periods a day needs 1 hour for each.

Step-by-step explanation:

8 period =45×8=360 minute

6 perod =360/6=60minute

What base of this triangle


A. 10


B. 8


C. 80


D. 18

I gave Brainlist ​

Answers

Answer:

a is the base

Step-by-step explanation:

its right there

Will the sum of 56+ (-56) be Positive negative or zero

Answers

Answer:

the answer would be 0 i presume

Step-by-step explanation:

ty for reading :P

the answer is 0 cuz if u add a number with another number but one is negative, then it equals 0

Is the line through points P(2,-9) and Q(6, -13) perpendicular to the line through points R(5,-1) and
S(1,-5)? Explain

Answers

Answer:

yes they are perpendicular to eachother because when both the lines cross it makes a right angle 90 degrees making it perpendicular

Step-by-step explanation:

emily is entering a bicycle race for charity. Her mother pledges $0.40 for every 0.25 mile she bikes. If Emily bikes 15 miles, how much will her mother donate?

Answers

Answer:

$25.60

Step-by-step explanation:

To find how much money will be donated, we find how many 0.25's there are in 16 and multiply that by $0.40.

16/0.25=64

64*0.4=25.6

$25.60

Answer:

thanks

Step-by-step explanation:

Inverse of functions:

Can someone please help me I’ve been trying to do this answer for the past hour and I still can’t solve it.

Answers

Answer:

I'm not sure sorry!! :(

Step-by-step explanation:

Find AC.

B
7x6
6x +4

Answers

Answer:

AC = 64

Step-by-step explanation:

the triangles are congruent because SAS

AC = AB

7x-6 = 6x+4

x = 10

AC = 64

The area of a parallelogram is 513cm² and the height is 19cm. Calculate the base length.

Answers

the base length is 27 cm.
area of a parallelogram is A=b*h
plug in the known area and height into the formula: 513=19*b
divide off the 19: b=27


What is the measure of each base angle of a 140 degree

Answers

Answer:

The two possible cases are

(i) the base angles are each 40° and the vertex angle is 100°,

(ii) the base angles are each 70° and the vertex angle is 40°.

Step-by-step explanation:


The H.C.F of 42,70 and 56
​

Answers

Answer: 14

Step-by-step explanation

Do the prime factorization & it will give you 14

There is a bag filled with 4 blue and 5 red marbles.
A marble is taken at random from the bag, the colour is noted and then it is replaced.
Another marble is taken at random.
What is the probability of getting exactly 1 blue?

Answers

Answer:

hvgf m g n HCF kvvfgfhhjfj

can someone help with this plz:)

Answers

Answer:

XI and IX

Line above has arrow heads on both ends.

Step-by-step explanation:

XI and IX

Line above has arrow heads on both ends.

the first and second one in the answer choices, hope its right!!

IWHDHDNDJBFJDNX HELP!!!!!​

Answers

Answer:

The answer should be B.

Step-by-step explanation:

I got the answer before. Can't remember if I was right. Also A can also be correct.

pls help guys im having trouble on this question and need help

Answers

Edgar (-5,8) is the correct answer.

Answer:

Edgar

Step-by-step explanation:

Just use a coordinate plane yourself, and follow the steps

The Jackson family went to soups and wiches and bought four sand which sand three bowls of soup for $27. The frank family went to soups and wiches and bought one bowl of soup and five sandwiches for $25.50. Let w represent the cost of the sandwich CNN es and a represent the cost of a bowl of soup. Identify which system of equations represents the situation.

Answers

Answer:

4w + 3c = $27

5w + c = $25.50

Step-by-step explanation:

Let us assume the w represent the cost of the sandwich

And, the c represent the cost of the bowl in a soup

Now the equations are

4w + 3c = $27

5w + c = $25.50

These two should be the equations that represent the situation

1 1/3 x 2 1/6=1/3 x ?/6=?

Answers

Answer:

the answer is : y=2

(btw I changed the ? into y. hope that's okay)

wat is x in 1/3x - 11 = 5

Answers

=48

Multiply by 1

Add 1 1 11 11

to both sides of the equation

Answer:

The answer is 48

Step-by-step explanation:

First, add 11 to both sides

5 + 11 = 16

1/3x = 16

Next, times 16 by 3

16 times 3 = 48

Check!

1/3(48) = 16

16 - 11 = 5

X = 48

3. Aşağıda verilen çıkarma işleminde bazı rakamların yerine semboller kullanılmıştır.
4 318
3 2*
4 1 A6
Buna göre, bu sembollerin yerine yazılması gereken rakamlar için (1+A)** işlemi-
nin sonucu kaçtır?
A) 28
B) 30
C) 55
D) 63
g
ANK-0502​

Answers

Answer:

thr answers are A and D of the question

The Courtney family wants to expand their rectangular patio, which currently measures 13ftby 18 ft. They want to extend the length and width by the same amount to increase the total areaby 140 ft squared. Write a quadratic equation that models the situation. YOU DO NOT HAVE TO SOLVE.

Answers

Answer:

hi

Step-by-step explanation:

et the number of feet they are going to expand the width and length of the patio. ... But, we also know form our problem that they want to increase the total area of the patio by 160 ... Now we can equate the expanded area of the patio and simplify: ... Write the quadratic equation in standard form: x^2- 1 = -7x.

Can someone hurry please tell me the answer I will mark brainless

Answers

Answer:

C) z = 1/2

Step-by-step explanation:

4z + 5 = 7

4z = 2

z = 1/2

20% of 2 is equal to

A. 20

B. 4

C. 0.4

Answers

Answer:

C

Step-by-step explanation:

Answer:

C.

Step-by-step explanation:

I dont have any explanation (sorry)

The carnival also offers two magic shows. The morning show is only 20 minutes and it costs $3.75. For the afternoon show, it is 35 minutes and costs $5.25. Which show would give you more for your money?

Answers

Answer:

id say to have 15 more minutes of show time and to only pay about 2 dollars more, the more reasonable show would be the second one.

1) 3x – 2y = 2
y = 2x + 8
​alguien que me ayude con esto no lo entendemos gracias

Answers

{ 3x-2y=2
{ y=2x+8

{ -2y=2-3x
{ y=2x+8

{ y= -1+3/2x
{ y= 2x+8

-1+3/2x = 2x+8
x=-18

y= 2(-18)+8
y= -28

(x,y) = ( -18,-28)

——
Solution check

{ 3(-18)-2(-28)=2
{ -28=2(-18)+8

{ 2=2
{ -28=-28

Each of the Space Shuttle's solid rocket motors burns 680,400 kilograms of propellant in 2.5 minutes. How much propellant does each motor

Answers

Answer:

Step-by-step explanation:

Danny charges $30 for 3 hours of swimming lessons, Martin charges $38 for 2 hours of swimming lessons. Who offers a better deal?

Answers

Answer:

Danny

Step-by-step explanation:

Danny charges less because he only charges $30 for 3 hours of swimming lessons while Martin charges $38 for only 2 hours of swimming lessons.

please help me with this

Answers

Answer:

the second one

Step-by-step explanation:

Stores often mark up items each year to cover inflation.
Last year, a CD at Juan's Tunes cost $12.95. This year,
the cost was marked up 8%. The store also gave anyone
who bought four CDs this
year a 10% discount. Explain
the steps to find the final cost for the four CDs this year.

Answers

Answer:

so you have $12.95. then you multiply it by 8% which gives you $13.986. Then you take 10% off of it, which gives you $12.5874.

Answer:

The new price would be 108% of last year’s price. Multiply the new price by 4 and then multiply that amount by 90% to find the sale price.

Step-by-step explanation:

sample response

Triangle RST has vertices R(–1, 1), S(3, 1), and T(3, –4). What
are the coordinates of the image of RST after a translation 4 units to the left and 2 units down?

Answers

Answer:

R'(-5, -1) S'(-1, -1) T'(-1,-6)

Step-by-step explanation:

because the triangle is moving to the left, you subtract the number of units from the x coordinates of each vertex of the triangle. becasue the triangle is moving down, you subtract the number of units moved down from the y coordinates of each vertex.



Mr. Williams is making wooden toy trucks for a craft show. He has 85 pieces of wood for the trucks

Each truck requires 6 pieces of wood.

Part A

How many toy trucks can Mr. Williams make? Enter your answer in the box.

00:00

Part B

How many pieces of wood will he have left? Enter your answer in the box.

Answers

Part A: He could make 14 toy trucks.

Divide 85 by 6.

85/6

14

(don't take any notice to the decimals)

Part B: He would have 1 piece of wood leftover.

6x14=84

Since Mr. Williams has 85 pieces of wood,

he would have 1 leftover.

Hope this helped!

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