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

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]

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

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

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 !!

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.

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

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

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

Answers

So uh this came up , I hope this helps

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

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            

--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

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.

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

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

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)

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.

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

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

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

Answers

The answer is -4300
That’s the answer

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:

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

Answers

-0.5 divided by -1/5 is 0.1

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


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 ...................

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:

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!

multiple and divide signed numbers​

Answers

Answer:

Step-by-step explanation:

Multiply answer = - 106

Divide answer = 1.25

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.

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

Answers

X^2+x-2
Pls mark brainliest
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