Shawna was going to sell all of her stamp
collection to buy a video game. After selling half of them she changed her mind. She then bought five more. How many did she start with if she now has 30?

Answers

Answer 1

Answer:

She started with 50 stamps

Step-by-step explanation:

Hi! For these types of problems we always result to going backwards. So, she now has 30 right? So, to reverse into the problem, we do the opposite of what it says. "She then bought five more" 30 - 5 = 25. Then it says she sold half of them. 25 x 2 = 50. If we recheck by going back, she sold half of them (50 / 2 = 25) and she bought five more (25 + 5 = 30).

Hope this helps!


Related Questions

Melanie has a bag that contains orange chews, cherry chews, and peach chews. She performs an experiment. Melanie randomly removes a chew from the bag, records the result, and returns the chew to the bag. Melanie performs the experiment 61 times. The results are shown below: A orange chew was selected 38 times. A cherry chew was selected 5 times. A peach chew was selected 18 times. Based on these results, express the probability that the next chew Melanie removes from the bag will be peach chew as a decimal to the nearest hundredth.

Answers

Answer:

0.30

Step-by-step explanation:

Given that:

Total number of trials = 61

Number of orange chews = 38

Number of cherry chews = 5

Number of peach chews = 18

Probability that next chew removed will be a peach chew ;

This is an experimental probability problem ;

Using the relation :

Experimental probability of A;

Number of successes (A) / total number of trials

Hence, Probability that next chew removed will be a peach chew ;

Experimental probability of peach chew :

Number of trails = 61 ; number of successes (peach chew) = 18

P(peach chew) = 18 / 61

P( peach chew) = 0.2950819

= 0.30 ( nearest hundredth)

Identify the parent function.

a. cube root
b. reciprocal
c. square root
d. absolute value

Answers

Answer:

The answer is C. Square root

Step-by-step explanation:

The parent function of given graph is a square root function

The correct answer is an option (c)

What is a function?"It defines a relation between input and output values.""In function, for each input there is exactly one output."What is cube root?

"The function of the form [tex]f(x)=\sqrt[3]{x}[/tex] "

What is reciprocal function?

"This function obtained by finding the inverse of a given function."

What is square root function?

"The function of the form [tex]f(x)=\sqrt{x}[/tex] "

What is an absolute value function?

"The function of the form f(x) = |x| "

For given question,

We have been given the graph of a function.

We need to identify the parent function for the given the graph.

We can observe that the graph increases slowly.

The range of the function is set of all positive values.

We know that the range of square root function is always positive.

If we draw the graph for following functions

i) cube root function

ii) reciprocal function

iii) square root function

iv) absolute value function

Then the parent function of given graph is a square root function

Therefore, the correct answer is an option (c)

Learn more about the square-root function here:

https://brainly.com/question/14231651

#SPJ2

Find the area of the parallelogram.

Answers

Answer:

12

Step-by-step explanation:

12 is the area

Since,

6×2=12

A small box of nails was 10 2⁄8 inches tall. If the large box of nails was 2 2⁄5 inches taller, how tall is the large box of nails? Answer as an improper fraction.

Answers

Answer:

253/20

Step-by-step explanation:

1/2+ p = -3 solve for p

Answers

Answer:

-3.5

Step-by-step explanation:

1/2+p= -3

p= -3-1/2

p= -3.5

hope it helped? (3

Translate quadrilateral ABCD 5 units to the right and 6 units down.



What are the coordinates of the vertices of the image?
Please help and give an answer with in depth information. +15 points

Answers

Answer:

D. A'(1,-7), B'(2,-1), C'8,-2) and D'(7,-5)

Step-by-step explanation:

Probably too late, but I took the quiz

Answer:

D

Step-by-step explanation:

Keep it simple, but correct :)

Because of prevailing winds, a tree grew so that it was leaning 6º from the vertical. At a point d = 37 meters from the tree, the angle of elevation to the top of the trees
is a = 29° (see figure). Find the height h of the tree. (Round your answer to one decimal place.)
h =
m
d m
Additional Materials
eBook

Answers

Answer:

Height of the tree is 40.0 meters.

Step-by-step explanation:

From ΔABC,

m∠ABC = 90°

Since, m∠ABC = m∠CBD + m∠ABD

90° = 6° + m∠ABD

m∠ABD = 90°- 6° = 84°

By triangle sum theorem in ΔABD,

m∠ABD + m∠BDA + m∠DAB = 180°

84° + 29° + m∠BDA = 180°

m∠BDA = 180° - 113°

             = 67°

By sine rule in ΔABD,

[tex]\frac{\text{sin}(\angle BDA)}{d}= \frac{\text{sin}(\angle ABD)}{h}[/tex]

[tex]\frac{\text{sin}(67)}{37}= \frac{\text{sin}(84)}{h}[/tex]

h = [tex]\frac{\text{sin}(84)\times 37}{\text{sin}(67)}[/tex]

h = 39.98

h ≈ 40.0 meters

Therefore, height of the tree is 40.0 meters.

The sine rule is the ratio of the side length to the sine of the opposite angles. Then the height of the tree is 40 meters.

What is trigonometry?

Trigonometry deals with the relationship between the sides and angles of a triangle.

Because of prevailing winds, a tree grew so that it was leaning 6º from the vertical.

At a point d = 37 meters from the tree, the angle of elevation to the top of the trees is a = 29° (see figure).

∠ABC = 90

We have

In ΔABC

∠ABC = ∠CBD + ∠ABD

∠ABD = 90 - 6

∠ABD = 84

By triangle sum in ΔABD, we have

∠ABD + ∠BDA + ∠DAB = 180

                            ∠BDA = 180 - 84 - 29

                            ∠BDA = 67

Then by the sine rule, we have

[tex]\begin{aligned} \dfrac{\sin \angle BDA}{d} &= \dfrac{ \sin \angle ABD }{h}\\\\\dfrac{\sin 67}{37} &= \dfrac{\sin 84}{h}\\\\h &= \dfrac{\sin 84} \times 37{\sin 67}\\\\h &= 39.98 \approx 40 \end{aligned}[/tex]

More about the trigonometry link is given below.

https://brainly.com/question/22698523

How do you graph this? y=−5x

Answers

Answer:

Step-by-step explanation:

dont need to graph the center dot, its just the origin

Select the fraction that is equivalent to one half.

HOW DO I DO THIS PLZ HELP

Answers

Answer:

1/2 one half

Step-by-step explanation:

Answer:

Multiply both the numerator and the denominator by the same whole number.

For example;

If you multiply 1/2 by 2/2, this will equal 2/4. You can simplify 2/4 to 1/2.

So to find 1/2 to be equivalent to another fraction, multiply both the numerator and the denominator by the same number to find a fraction that equals 1/2.

BRAINLIEST N 15 POINTS
Table to Linear Equation

Answers

Answer:

Y=-5X+1

Step-by-step explanation:

Answer:

y = -5x + 1

Step-by-step explanation:

y = mx + b

m = [tex]\frac{y_{2}- y_{1} }{x_{2}- x_{1}}[/tex] = [tex]\frac{-9-(-4)}{2-1} = -5[/tex]

y = -5x + b: then plug in a point to find b

-19 = -5(4) + b

-19 = -20 + b

b = 1

Plug in all the values to get: y = -5x + 1

It costs $3.50 for ¾ pound of chicken. How much does it cost for 1 pound of chicken?

Answers

Answer:

£4.38

Step-by-step explanation:

You need to find 1/4 and then add it on

3 points
2. The cost of an online subscription to a
newspaper is $7.99 per month. If you
buy a one-year subscription, the cost
is $89.88. How much do you pay each
month if you choose the one-year
subscription?

Answers

Answer:

$7.49

Step-by-step explanation:

89.88/12= 7.49

The bakers at
Good-For-You Bakery can
make 500 bagels in 2
hours. How many bagels
can they bake in 14
hours? What was that rate
per hour?

Answers

Answer:

Rate: 250 bagels per hour

3500 bagels in 14 hours

Step-by-step explanation:

2x-10+x-6=2
combing like terms..

Answers

First you will combine the “x’s” so x+2x=3x then you would add 10 and 6 16 and subtract it to move it to the other side of the = so 2-16= -14 then you would divide 3x and -14 by 3 then there is your answer hope this helps

If the ratio of boys to girls is 1:2 and there are 10 girls in your class, how many boys are there?

Answers

Answer:

5

Step-by-step explanation:

divide 10 by 2

Answer:

There are 5 boys in the class

estimate 70 divided 30

Answers

Answer:

1.4 estimate: 1

Step-by-step explanation:

Find the area of the shape below. All measurements are in miles.
6
8
1
15.23
1
1

Answers

731.04!! You multiply all together!! Mark me brainliest ?


Enter equations one at a time in order to send a line
through the coins to "capture" them.

Answers

Answer:

y = x + 3

y = 3x + 1

Step-by-step explanation:

This does it in two equations.

y = x + 3 and  y = 3x + 1 equation will send 2 different lines through the coins to capture them

using the slope intercept equation,

y = mx + b

m = slope

b = y-intercept

let's pick 2 coordinate from the graph,

(-2, 1)(-1, 2)

m = 2 - 1 / -1 - (-2)  = 1 / 1 = 1

1 =  -2 + b

b = 3

Therefore,

y = x + 3

let check for another equation that will work for another line. Let's use the coordinates (-1, -2)(0, 1) to find slope.

Therefore,

m = 1 - (-2) / 0 - (-1) = 3 / 1 = 3

y = 3x + b

1 = 3(0) + b

b = 1

y = 3x + 1

Check here for similar problems: https://brainly.com/question/22490518?referrer=searchResults


Jared has 12 more comic books than Zoe. If they have 28 comic books
altogether, find the number of comic books Jared has.
Your answer

Answers

Answer:

20 comic books

Step-by-step explanation:

Let us first set up a variable, x, for the number of books that Zoe has. If Jared has 12 more comics than Zoe, he would have x+12 books.

Given that Zoe and Jared have a total of 28 comic books, let us write an equation and solve for x:

[tex]x+x+12=28\\2x+12=28[/tex]

Now that we have a simplified version of the equation, let us solve for x by isolating the variable on the left side:

[tex]2x=28-12\\2x=16\\x=8[/tex]

We now know that x=8, and also that Jared has x+12 books. To find the number of comic books Jared has, let us add 12 to x:

[tex]x+12=\\8+12=\\20\\[/tex]

Therefore, Jared has 20 comic books.

I hope this helps! Please let me know if you have any further questions :)

2+2= 4 because there is too two's and there for it =4

Answers

Answer:

Yes, that is correct. Congrats 7 year old.

Step-by-step explanation:

2 plus 2 equals 4

:)

thanks for points

Question 3(Multiple Choice Worth 1 points)
(05.04 MC)

The data to represent average test scores for a class of 16 students includes an outlier value of 78. If the outlier is included, then the mean is 84. Which statement is always true about the new data when the outlier is removed?

The mean would decrease.
The mean would increase.
The median would decrease.
The median would increase.

Answers

Answer:

The mean would increase

Step-by-step explanation:

The mean would increase

78 is lower than the mean so if you take out a value that's lower than the mean it would obviously increase

1 5/6 ÷ 3/5 x 2/11 = ?

please help! will give brainliest! also, please show all work, thanks!

Answers

Answer:

75/99

Step-by-step explanation:

Use triangles ABC and A'B'C' for Exercise. Use the coordinates to find the lengths of the sides.
please help is due in 20 minutes

Answers

Answer:

AB = 2

BC = 2

A'B' = 6

B'C' = 6

Step-by-step explanation:

what is the answer for y=__x+__

Answers

Answer:

y=1/-4x+4

Step-by-step explanation:

hey

Step-by-step explanation:

Slope (x) is rise/run. From one intersecting point to the next, we find it is moving 4 y down and 1 x over. Using this we conclude the slope is -4/1x (or -4x)

The second number in the system is b, or y-intercept. The line intercepts at 4y. If we combine these together, the outcome is y = -4x + 4

2x−7=−19 x =
x/-3+5=12 x =
3/4x −5=4 x =

Answers

i believe it’s x=3 i’m sorry if i wrong

Which of these is the standard form of the following function?
f(x) = -9(x + 5)2 + 4



f(x) = 9x2 − 90x − 221


f(x) = -9x2 − 90x − 221


f(x) = 9x2 − 180x + 221


f(x) = -9x2 − 180x − 221

Answers

I’m pretty sure the answer would be B

Answer:

the answer is B) -9x2 -90x -221

A rectangle measures 6 inches by 15 inches. If each dimension of the rectangle is dilated by a scale factor of 1/3 to create a new rectangle

Answers

I think it is A. I could be wrong

The Smiths spend 5% of their budget on entertainment. Their total budget this year is $2,000 more than last year, and this year they plan to spend $2,300 on entertainment. What was their total budget last year?

Their total budget last year was

Answers

Answer:

$44,000 is the total budget

answer these questions if ur smart

Answers

So find the diameter which is the radius times 2
So 3x2= 6
6x 3.14(Pi)
=18.84 which a full circle and now divide by two
9.42 is the area of semi circle

Answer:ayyyy more free points

Step-by-step explanation: so i can ask questions

\

3.
Susan has a balance of $110 in her school lunch account, and she spends $6 per day for
lunch. Her sister Evelyn has $83 in her lunch account, and she spends $4 per day for lunch. In
how many days will Susan's lunch account balance be less than Evelyn's?

Answers

Answer:

i may be entirely wrong but evelyn has more days

susan=18

evelyn=20.75 or 21 if rounded

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