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slega [8]
3 years ago
5

Last Sunday a certain store sold copies of Newspaper A for $1.00 each and copies of Newspaper B for $1.25 each, and the store so

ld no other newspapers that day. If r percent of the store’s revenues from newspaper sales was from Newspaper A and if p percent of the newspapers that the store sold were copies of newspaper A, which of the following expresses r in terms of p?
A. 100p(125–p)100p(125–p)
B. 150p(250–p)150p(250–p)
C. 300p(375–p)300p(375–p)
D. 400p(500–p)400p(500–p)
E. 500p(625–p)
Mathematics
1 answer:
Artemon [7]3 years ago
5 0
Answer is b 150p(250-p)150p(250-p
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A souvenir shop sells two sizes of American flags. Small flags cost $3.50 and large flags cost $6.50. On a recent day, 155 flags
Mariulka [41]

Answer:

Small flags = 108

large flags= 47

Step-by-step explanation:

Step one:

given

let the number of small lag be x

and big flags be y

so

3.5x+6.5y= 683.5----------1

x+y=155------------------------2

Step two:

from eqn 2 x= 155-y

put x= 155-y in  eqn 1

3.5(155-y)+6.5y= 683.5

542.5-3.5y+6.5y=683.5

collect like terms

3y=141

divide by 3

y= 141/3

y=47

Step three:

put y= 47 in eqn 2

x+47=155

x= 155-47

x=108

3 0
3 years ago
6 1/2+n=12. please explain for me I dunno how to do this.
Temka [501]
Hey there!

Let's first define our goal. Our goal here is to be able to isolate the variable, n, and solve for it by moving everything to the other side. We see that we have two sides of the equation, and by using the property of equality which states that whatever you do to one side you do to the other and the expression remains equal, we can solve this equation.

It looks like the only thing we have on the left side with n is that 6 1/2. In order to get rid of it, we must subtract it from both sides, because the property of equality states you must do the inverse operation.

We have:

n = 12 - 6 1/2

n = 5 1/2

Hope this helps!
7 0
3 years ago
98 POINTS!! PLEASE HELP
denis23 [38]

Answer:

A) what did the student do wrong, explain why they are incorrect  

B) Demonstrate and explain the correct way to answer the question.  

Lauren says that two expressions 3x+4(2x+5) and 6x +5x +5 are equivalent. Simplify the expressions to determine whether or not Lauren is correct. Substitute a value for x to see if she is right.

<u>3x+8x+20 = 6x+5x+5</u>

<u>11x+20 = 11x+5</u>

<u>She is wrong</u>

Students answer: She is correct because both equal 11x +5. I substituted x=2 and got 27 for both

<u>She is wrong because 27 will be the answer for ' 11x+5' only. The correct method should be </u>

<u>x=-15 </u>

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
I need help pls<br> lol this is a math problem
soldi70 [24.7K]

False, because it didn't go up .

6 0
3 years ago
Read 2 more answers
What is the slope of the line through (-1, 2) and (-3,-2)?
Burka [1]

The answer of the slope or Gradient of the line is 2

8 0
3 years ago
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