Callum and Isobel have a total of 240 stamps.
The ratio of the number of Callum’s stamps to the number of Isabel’s stamps is 3:8.
Callum buys some stamps from Isabel.
The ratio of the number of Caullum’s stamps to the number of Isabel’s stamps is now 3:2
How many stamps does Callum buy from Isabel?
You must show all your working.
Please help.

Answers

Answer 1

Answer:

Total stamps = 240

ratio= 3:8

3x + 8x = 240

11x = 240

x = 240/11 = 21.8

then, callum's stamps = 3x = 3 * 21.8 = 65.4

Isabel's stamps = 8x = 8 * 21.8 = 174.4

After buying the stamps,

ratio = 3:2

callum's stamps = 3x

Isabel's stamps = 2x

= 3x + 2x = 240

5 x = 240

x = 240/5 = 48

callum's stamps = 3x = 3 * 48 = 144

Isabel's stamps = 2x = 2 * 48 = 96

no. if stamps bought by calling = 144 - 65.4 = 78.6 stamps

hope it helps you


Related Questions

Please help me I can’t seem to figure this out


7.01 x 0.356

Answers

Answer:

2.49556

Step-by-step explanation:

Answer:

2.49556

Step-by-step explanation:

0.356

× 7.01

---------

2.49556

Withby tuns 3/4miles in 1/6 hours at that rate how far can she run in one hour?

Answers

Answer:

4.5 miles ibelieve

Step-by-step explanation:

3/4 × 6/6 is 4.5 miles

Jason claims he has finished reading 25% of his book. If his book has 200 pages, how many pages has he read?

Answers

Answer:

Jason has read 50 pages.

Step-by-step explanation:

25% of 200 = 50

Remember "of" means multiply so you multiply 25% to 200

25% x 200

Convert 25% into a decimal

0.25 x 200 = 50

So Jason has read 50 pages.

Which number line below shows the solution to the inequality -4 < x/2 < 2?

Answers

Answer:

B

Step-by-step explanation:

Answer:

D.

Step-by-step explanation:

i hope this helps :)

whats they answer for they question 10+20

Answers

Answer:

30

Step-by-step explanation:

jk it's 19

Answer:

30, 10+20=30. if you dont know this you probably shoudnt be on brainly.

Step-by-step explanation:

Please guys help me. I am suck. I will give you the brainliest.❤❤​

Answers

Answer:

           Seventy two guests

Step-by-step explanation:

72 = 72×1

144 = 72×2

288 = 144×2 = 72×4

So each of 72 plates would have one cupcake, two apples and four chocolate bars.

{72 is the highest common factor for numbers 72, 144 snd 288}

work out 4.52 times by 36

Answers

I just it into a calculator and got 162.72. Hope this helps you! Have a nice day and a nice rest of the holidays!

The product of 4.52 times by 36 is 162.72

Given,

4.52 times by 36

We need to find the product.

How do multiply decimal numbers?

Example:

2.3 x 3.4 = 7.82

There are two numbers after the decimal point.

In 2.3 there is one number after the decimal point.

In 3.4 there is one number after the decimal point.

Now,

1 + 1 = 2 numbers

7.82 has two numbers after the decimal point.

We have,

4.52 times by 36

4.52 x 36 = 162.72

4.52 x 6 = 27.12

4.52 x 3 = 13.56

         4.52

       x   36

        27.12

     13.56        

     162.72

4.52 has two numbers after the decimal point.

162.72 has two numbers after the decimal point.

Thus the product of 4.52 times by 36 is 162.72

Learn more about the multiplication of decimal numbers here:

https://brainly.com/question/6752346

#SPJ2

A new car, valued at $28,000, depreciates at 9% per year. What is the value of the
car one year after purchase?

Answers

I believe the answer is $25,480

Answer:

25480

Step-by-step explanation:

28000 x 0.91

A soap factory packs 7 bars of soap into each family pack. How many family packs can be made with 4,900 bars of soap?

Answers

Answer:

700 family packs

Step-by-step explanation:

In each family pack, there are 7 bars of soap. To find the number of family packs that can be made with 4900 bars of soap, we need to divide 4900 into groups of 7.

4900÷7

=700

Therefore, 700 family packs can be made with 4900 bars of soap.

I hope this helps!

solve system of equations using the elimination method

Answers

Answer:

(x,y)=(-4/5,10/19)

Step-by-step explanation:

x+2y=3

x-8y=-16

x+2y=3

-x+8y=16 (multiply both sides by-1)

10y=16

y=16/10

x+2(16/10)=3

x=-4/5

True or false

It is common for
basic savings accounts
to have interest rates
up to 35%.

Answers

Answer:

TRUE

i think

Step-by-step explanation:

True

Hope this helps!!

Consider the graph of the polynomial function. Which of the following shows three binomial factors of the function?
Question 16 options:

A)

(x – 1)(x – 2)(x – 3)

B)

(x + 1)(x + 3)(x – 2)

C)

(x + 2)(x – 1)(x – 3)

D)

(x + 1)(x + 2)(x + 3)

Answers

Answer:

C

Step-by-step explanation:

the three binomial factors are (x+2)(x-1)(x-3)

Answer:

C

Step-by-step explanation:

Given a zero x = a then the corresponding factor is (x - a )

Here the zeros ( where the graph crosses the x- axis ) are at

x = - 2, x = 1 and x = 3

Thus the corresponding binomial factors are

(x - (- 2) ), (x - 1) and (x - 3), that is

(x + 2), (x - 1), (x - 3) → C

Determine the slope-intersept form of the linear equation x/2 - y + 6 =0

Answers

Answer: slope =1/2  y intercept (0,6)

Step-by-step explanation: use the slope and y intercept form y=mx + b

What time is it in New York, now

Answers

Answer:

7:17 PM

Step-by-step explanation:

Answer:

7:17................

What is the domain ??

Answers

Answer:

[-8, 6]

Step-by-step explanation:

Domain is the x values. Look at the smallet x value, in this case -8, and the largest, in this case 6, and write them like a point using [] not (). You use [ or ] for numbers and ( or ) for infinity signs.

I NEED HELPPP !!!!!!!

Answers

Answer:

84/B

Step-by-step explanation:

Angle measure 51 is vertical

45+51+A=180

A=84

look at the picture that's the problem I need help with​

Answers

Answer:

I think its A

Step-by-step explanation:

if f(x)= -3x2 -5x, what is the value of f(-3)? (the 2 is to the second power )

Answers

Answer:

-12

Step-by-step explanation:

-3x^2-5x  x is -3

-3(-3)^2-5(-3)

-27+15

PLEASE ANSWER RIGHT AWQY I WILL MARK YOU BRAINLIEST!!

Answers

What is your question?

The equation for the pH of a substance is pH = -log[H'], where H+ is the concentration of hydrogen ions. A basic
solution has a pH of 11.2. An acidic solution has a pH of 2.4. What is the approximate difference in the concentration
of hydrogen ions between the two solutions?

Answers

Answer:

it's b.

Step-by-step explanation:

Answer:

B. 4.0 x 10^-3

Step-by-step explanation:

Correct answer on edge 2022.

Geometry Question:

Find the value of x that makes N the incenter of the triangle (See attached)

Answers

Answer:

.5 or 1/2

Step-by-step explanation:

Y^2x 24^2=25^2

Y=7

7=14x

x=.5

The value of x is 0.5.

The calculation is as follows:

Here we use Pythagoras Theorem

[tex]Y^2 - 24^2=25^2[/tex]

Y=7

Now  

7 = 14x

So, x=.5

Therefore we can conclude that The value of x is 0.5.

Learn more: brainly.com/question/17429689

6th grade math i mark as brainliest ​

Answers

Answer:

214.8 - 19* 4 =

214.8 - 76 =

138.8

therefore your answer is 138.8

Step-by-step explanation:

Answer:

76

Step-by-step explanation:

19 * 4 = 76

11. Write an equation in slope-intercept form that passes through (2,3) and 1 (1,5). *​

Answers

Answer:13/6/7

Step-by-step explanation:

A line passes through point A(14,21). A second point on the line has an x-value that is 125% of the x-value of point A and a y-value that is 75% of the y-value of point A. Use point A to write an equation of the line in point-slope form.

Ivana works at a department store selling perfume and makeup. She earns $375 per week and 4% commission on her sales. If Ivana's sales for the week were $2513, what are her total earnings for the week?

Answers

Answer:

$1380.2

Step-by-step explanation:

Step one:

given data

weekly earnings= $375

Commission is 4% of sales.= 0.4

supposing sale is x, and the total earning is y

the expression for the total earning will be

y=375+0.4x

Step two:

for x= 2513, y will be

y=375+0.4(2513)

y=375+1005.2

y=1380.2

Hence  her total earnings for the week will be $1380.2

Can somebody help me? With those three problems please

Answers

Answer:

15. [tex] x = 8 [/tex]

16. m<V = 103°

17. [tex] x = 14 [/tex]

Step-by-step explanation:

15. The figure given is quadrilateral. Sum of interior angles of a quadrilateral = 360°

Therefore:

[tex] (10x + 6) + (13x - 2) + (8x - 1) + (180 - 71) = 360 [/tex]

Solve for x

[tex] 10x + 6 + 13x - 2 + 8x - 1 + 109 = 360 [/tex]

Add like terms

[tex] 31x + 112 = 360 [/tex]

Subtract 112 from each side

[tex] 31x = 248 [/tex]

Divide both sides by 31

[tex] x = 8 [/tex]

16. The polygon is a hexagon. Sum of interior angles of a hexagon = 720. Therefore:

[tex] 90 + (7x + 3) + 128 + (5x + 8) + 111 + (9x - 19) = 720 [/tex]

Solve for x

[tex] 90 + 7x + 3 + 128 + 5x + 8 + 111 + 9x - 19 = 720 [/tex]

Add like terms

[tex] 321 + 21x = 720 [/tex]

Subtract 321 from each side

[tex] 21x = 399 [/tex]

Divide both sides by 21

[tex] x = 19 [/tex]

m<V = 5x + 8

Plug in the value of x

m<V = 5(19) + 8 = 95 + 8

m<V = 103

17. The polygon is a regular pentagon. This means each of the angles measures 108°. The sum of the interior angles all together is 540.

Therefore:

[tex] (9x - 18) = 108 [/tex]

Solve for x

[tex] 9x - 18 = 108 [/tex]

Add 18 to both sides

[tex] 9x = 126 [/tex]

Divide both sides by 9

[tex] x = 14 [/tex]

Bernie’s estimated that 69% of 242 is 168 is her estimate reasonable

Answers

Answer:

Yes it is.

Step-by-step explanation:

Best way is to use percentages you know when estimating.

We know 50% is half.

50% of 242 is 121.

So it has to be more than 121.

10% of 242 is 24.2  so add that to 121 and you get 145.2

You are 60% so far. You just need 9% more.

Add another 10% which is 24.2 and you get 169.4, which is over but we used 10% instead of 9% so the estimate is reasonable and close.

-3(2x-3)= -5x+5 show your work

Answers

Answer:

x=4

Step-by-step explanation:

Hope this helps!

Plz, mark brainiest! ^.^

Answer:

x = 4

Step-by-step explanation:

Use the distributive property to distribute the -3 amongst the 2x and the -3 in the parenthesis. Once distributed you should have -6x + 9 = -5x + 5. Next, you want to get all like terms on the same side, and to do that you must swap the +9 and the -5x. When you swap these, you must 'flip' the sign and change 9 to -9 and -5x to 5x. Now the equation should look like this: -6x + 5x = -9 + 5.

Now just solve. After solving, it should look like this: -1x = -4. Now to get rid of the negatives. Just divide each side by negative one and your answer is x = 4.

Find the two square roots of 4.

Answers

Answer:

2 and -2

Step-by-step explanation:

Answer:

the number 2

The slope of the line represented by y = 5x is

Answers

Answer:

The slope of the line represented by y = 5x is 5

Step-by-step explanation:

The form of the linear function is y = m x + b, where

m is the slope of the line that represents the equationb is the y-intercept (the value of y at x = 0)

To find the slope of a line from its equation compare the equation with the form of the linear function, then find the coefficient of x which is the slope of the line

∵ The equation of the line is y = 5x

→ Compare it with the form of the equation above

∵ The coefficient of x = 5

m = 5

The slope of the line represented by y = 5x is 5

Input -13,20,0,-4,11,-1,17,?
Output-15,-11,-9,-2,-1,5,5,13
what numbers can be placed into the empty cell so the table of values satisfies the definition of the function
these are the select answers
-5
-1
0
2
11
17

Answers

Answer:

I dont get it if u put options it will be helpful

Step-by-step explanation:

pls dont be mad have a wonderful day :D

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