Mike sold half of his comic books and then bought 8 more. He now has 18. How many did he begin with?

Answers

Answer 1

Answer: 20

Step-by-step explanation:

Answer 2

Answer:

20.

Step-by-step explanation:

If he sold half of them, bought 8 more, and now has 18, he had 20 to begin with.


Related Questions

how many regions are in Ghana​

Answers

Answer:

Ghana Has 16 regions.

Step-by-step explanation:

Answer:

16 regions                    

No explanation because it isn't needed            

Which situation involves an annuity?

A.
investing a $1,000 lump sum into an investment account
B.
depositing $5,000 into a one-year CD
C.
using $500 to open a savings account
D.
making regular deposits of $100 into a sinking fund

Answers

Answer:c. Using $500 to open a saving account

Step-by-step explanation:

Answer:

its D. making regular deposits of $100 into a sinking fund.

Step-by-step explanation:

I got it right

If you double 4 and if you double 1/2 then add 1, add 8 +1

Answers

Answer:

19?

Step-by-step explanation:

double of 4 is 8, double of 1/2 is 1 and adding them all together is 19

multiple and divide signed numbers​

Answers

Answer:

Step-by-step explanation:

Multiply answer = - 106

Divide answer = 1.25

Use partial quotients to divide. Show your work.
)
​___ group(s) of
​___ group(s) of
​___ group(s) of
0
Add the partial quotients.

Answers

I need more information on what I'm meant to be doing so I can help you because I don't understand the question after I re-read it over and over again.

I’m not dumb I’m just to tired to think !

Answers

Answer:

[tex]ths \: proberbility \: is \: \frac{5}{10} = \frac{1}{2} [/tex]

Answer:

ANSWER: 1/2

Step-by-step explanation:

there is 2 green and 3 yellow, 2+3=5, total of 10, so 5/10= 1/2.

Find the product, using suitable properties:
437 * (-45) + (- 437) × 55​

Answers

The answer is -4300
That’s the answer

what is 6 1/4 divided by 6 1/2?

Answers

So uh this came up , I hope this helps

Find the slope of the line that is perpendicular to the graph of the equation y-4x=1

Answers

Answer:

y=-1/4x+1

Step-by-step explanation:

Jane rented a movie. She started the movie at 11:42 PM, and it was 2 hours 47 minutes long. When did the movie end?

Answers

I think it would be 2:29
The answer would be 2:29am.

Ava read an article claiming that 10% of people in her county were senior citizens, and she wondered if this held true for residents in her city. She took a random sample of 225 people from her city to test H0 : p = 0.10, where p is the proportion of people in her city that are senior citizens. Ava found that approximately 14% of those sampled were senior citizens. She conducted an appropriate significance test, and the resulting test statistic was z ≈ 1.89z. Assume that the conditions for inference were met.

Answers

Complete Question

Ava read an article claiming that 10% of people in her county were senior citizens, and she wondered if this held true for residents in her city. She took a random sample of 225 people from her city to test H0 : p = 0.10, where p is the proportion of people in her city that are senior citizens. Ava found that approximately 14% of those sampled were senior citizens. She conducted an appropriate significance test, and the resulting test statistic was z ≈ 1.89 z. Assume that the conditions for inference were met.calculate the p-value for Ellie's significance test

Answer:

The p-value is  [tex]p-value  = 0.0588[/tex]

Step-by-step explanation:

From the question we are told that

   The percentage of senior citizens is  p =  0.10  

   The sample size is  [tex]n  =  225[/tex]

   The  sample proportion is  [tex]\^{p} =  0.14[/tex]

   The test statistics is  [tex] z \approx =   1.89[/tex]

The null hypothesis  is  [tex]H_o  :  p = 0.10[/tex]

The alternative hypothesis is   [tex]H_a  :  p \ne 0.10[/tex]

   Generally the p-value is mathematically represented as

       [tex]p-value  =  2 *  P(Z > 1.89 )[/tex]

From the z-table  

       [tex]P(Z > 1.89 )  =   0.029379[/tex]

=>     [tex]p-value  =  2 *   0.029379[/tex]

=>     [tex]p-value  = 0.0588[/tex]

Answer:

No because 0.06>0.05

Step-by-step explanation:

kahn

I don’t understand this .

Answers

Answer:it’s b because can fold into the shape

Step-by-step explanation:

what are the 2 violins to all the instruments
2 violins, 1 viola, and 1 cello

Answers

2 violens yup yup yup yup yup

The variables y and x have a proportional relationship, and y = 25 when x = 60.


What is the value of x when y = 30?

A. x = 25
B. x = 36
C. x = 50
D. X= 72

Answers

Answer:

A

Step-by-step explanation:

A. x = 25

it’s A. x = 25. :) i hope this helped !!

what is 7 - 4 = 5x - 13

Answers

Answer:

x=16/5

Step-by-step explanation:

7-4=5x-13

3=5x-13

+13.  +13

16=5x

16/5 = x

Perform the following Operations on fraction 1/5÷4/5=?​

Answers

Answer: 1/ 4  

Step-by-step explanation:

1/5 x 5/ 4 reduce the numbers with the greatest common factor 5

1/4

1 is ontop 4 is in the bottom 1/4

Which number is the opposite of -3?
3
-3
0

Answers

Answer:

positive 3

Step-by-step explanation:

Answer:

3

Step-by-step explanation: The opposite of -3 is positive 3

write an equation in slope-intercept form that meets the criteria described slope =3,through (5,2)​

Answers

Answer:

y = 3x - 13

Step-by-step explanation:

Simplify the expression given below x^2 + x-2

Answers

X^2+x-2
Pls mark brainliest

What is the relationship between the constant propprtionality of 50 and 0.02

Answers

Answer:

Inverse Proportionality

Step-by-step explanation:

Given

Constants 50 and 0.02

Required

Determine the relationship

Let y = 0.02

Convert 0.02 to fraction

y = 2/100

Simplify to lowest form

y = 1/50

Recall that y = 0.02

0.02 = 1/50

From the above expression, we can conclude that the relationship between both is inverse.

In other words, 50 and 0.02 are inversely proportional

Josh wants to determine the number of loaves of bread he can bake using 13 1/3 cups of flour he has. If each loaf requires 3 4/5 cups of flour, how many loaves can josh bake?

Answers

Answer:

4 loaves of bread.....

Sorry if i get it wrong i really tried :(

If it get it right comment down below please! I really want to know!


What value of x is in the solution set of 8x-6 > 12 + 2x?
3
5

Answers

yes u are correct i believe

Can a decimal that has repeating digits after the decimal point be converted into a fraction?

Answers

Answer:

yes, because you need to convert the repeating number into a decimal. In this case, you can assume that x is the fraction form of 0.7 repeating.

Answer:

yes I think so ...................

--what is the value of 1/2÷6=​

Answers

Answer:

0.833...

(3's are infinite)

       

Answer:

0.08333333333

.Step-by-step explanation:

0.5 divided by 6=0.08333333333

rounded: 0.083repeating

Please help what is -0.5 divided by -1/5

Answers

-0.5 divided by -1/5 is 0.1

Can someone please help me!!! Also does anyone know if there is a website or calculator that may give me the answers? Please help me! Thank you!

Answers

Answer:

[tex] x = 17 [/tex]

Step-by-step explanation:

[tex] 2x + 7 = 3x - 10 [/tex] (alternate exterior angles are congruent when a transversal cuts across two straight lines)

[tex] 2x - 3x = -7 - 10 [/tex] (collecting like terms)

[tex] - x = -17 [/tex]

[tex] \frac{-x}{-1} = \frac{-17}{-1} [/tex] (dividing both sides by -1)

[tex] x = 17 [/tex]

1.98 subtracted by 0.99

Answers

Answer:

0.99

Step-by-step explanation:

1.98 - 0.99 is 0.99.

Easy.

Just do it like you would any other problem.

Solve.
x^2 + 4 = 0.

Answers

Answer:

No real solutions

Step-by-step explanation:

You use the quadratic formula.

x = −b ± √(b^2 − 4ac)/2a where y = ax^2 + bx + c

b is 0, a is 1, and c is 4.

-0 ± √(0^2 − 4 x 1 x 4)/ 2(1)

±√(-16)/2

Split √(-16) into √(16) and √(-1).

Now, i = √-1

So you get ±√(-16) = ±4i.

The original equation was ±√(-16)/2.

±4i / 2 = ±2i

The answer is x = ±2i

(Note: ± means positive or negative)

how many inconsiderate people take up space in this world?

Answers

Answer:

Too many :(

Step-by-step explanation:

Its life u know

can i pls have brainliest

Answer:

that number is probably too high to count, don't ya think

1) Two pieces of a pole arle cut into 5 inches each from an original pole that was 20 inches
long. What is the length of the remaining part of the 20 inch pole?
HELP Please

Answers

Answer:

it is 10 because 5x2= 10and20-10=10

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