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stellarik [79]
3 years ago
13

A store owner buys backpacks at a certain price and sells them at a higher price. The difference is called the markup. If she pa

ys $21 for a backpack and add a 40% markup on the price, what is the selling price?
Mathematics
2 answers:
Oliga [24]3 years ago
7 0

Answer:8.40

Step-by-step explanation:

21 * .40= 8.40

Sidana [21]3 years ago
6 0

Answer:

I think it is 61 dollar. I wish this helps. ;)

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r-ruslan [8.4K]
418,200 - 326,700 = 91,500
7 0
3 years ago
Who has insta gramm I really need help with my assignments I need good grades to graduate
galina1969 [7]

Answer:

just search on brainly thats what im doing are you onine schooling

Step-by-step explanation:

6 0
3 years ago
A recent survey concluded that the proportion of american teenagers who have a cell phone is 0.27. the true population proportio
Jet001 [13]

Answer:

The mean for the sampling distribution of the sample proportion is 0.29

The standard deviation for the sampling distribution of the sample proportion is 0.01435

Step-by-step explanation:

The mean for the sampling distribution of the sample proportion is always equal to the true population proportion, in this case; p = 0.29

The standard deviation for the sampling distribution of the sample proportion is calculated as;

\sqrt{\frac{p(1-p)}{n} }

Using the given values;

p = 0.29

1 - p = 0.71

n = 1000

The standard deviation becomes;

\sqrt{\frac{(0.29)(1-0.29)}{1000} } \\

The s.d becomes 0.01435

4 0
3 years ago
If there are 400 ounces in 25 pounds, how many ounces are in 8 pounds
ladessa [460]
The answer is:  " 128 oz. " . 
_________________________________________________________
There are:  " 128 oz. " (in " 8 lbs." ) .
_________________________________________________________
Explanation:
________________________________________________________
Set up a proportion;  as a fraction; as follows:
________________________________________________________

 400/ 25  = x / 8 ; 

in which:  "x" = the number of "ounces [oz.] there are in "8 lbs." ;
________________________________________________________
We shall solve for "x" , the answer to the problem:

Cross-factor multiply:

25x = (400) * 8 ; 

→ 25x = 3200 ; 

Divide each side of the equation by "25" ; to isolate "x" on one side of the equation; & to solve for "x" ; 

→ 25x / 25 = 3200 / 25 ; 

→  x = 128 .
_________________________________________________________
Answer:  " 128 oz. " . 
_________________________________________________________
There are:  " 128 oz. " (in " 8 lbs." ) .
_________________________________________________________

Note of interest:  " 16 oz. =  1 lb. " (exact conversion). 

So;  "8 lbs.  <span>=  ?</span>  oz. " ; 

→  " 8 lbs. * (16 oz/ 1 lb)  =   ( 8 * 16) oz.  =  128 oz. ;  →  which is our answer!
_________________________________________________________
3 0
3 years ago
Read 2 more answers
Dafjjfdsfrdddddddd DISJFJIASJIFAJIFAIJIJASJDIASIJDJAISDJAIS
photoshop1234 [79]

Answer:

What?

Step-by-step explanation:

3 0
3 years ago
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