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kirza4 [7]
2 years ago
12

A bookstore pays $28 for a copy of a textbook. The bookstore sells the textbook for $42. What is the percent markup on the textb

ook?
Mathematics
2 answers:
soldier1979 [14.2K]2 years ago
6 0

Answer:

50%

Step-by-step explanation:

28×0.50= 14

14+28= 42

#CarryOnLearning

#MarkAsBrainliest

Ivenika [448]2 years ago
4 0
150 percent is the right answer!
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What is the value of r in the equation -3(4r - 8)=-36
Marianna [84]

Answer:

r=5

Step-by-step explanation:

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :  

                    -3*(4*r-8)-(-36)=0  

Step by step solution :

Step  1  :

Step  2  :

Pulling out like terms :

2.1     Pull out like factors :

  4r - 8  =   4 • (r - 2)  

Equation at the end of step  2  :

 (0 -  12 • (r - 2)) -  -36  = 0  

Step  3  :

Step  4  :

Pulling out like terms :

4.1     Pull out like factors :

  60 - 12r  =   -12 • (r - 5)  

Equation at the end of step  4  :

 -12 • (r - 5)  = 0  

Step  5  :

Equations which are never true :

5.1      Solve :    -12   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation :

5.2      Solve  :    r-5 = 0  

Add  5  to both sides of the equation :  

                     r = 5  

One solution was found :

                  r = 5


brainliest pllzz thx god bless

3 0
3 years ago
Read 2 more answers
The school café charges $3 for hot lunch. This amount is automatically withdrawn from a student's lunch account each day they pu
Alexandra [31]

Answer:

15 dollars

Step-by-step explanation:

you do 3 × 5 which will give you 15

7 0
3 years ago
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