Answer:
<h2>
15,120 number of ways.</h2>
Step-by-step explanation:
This is a permutation problem. Given the 10 cards with numbers 2, 3, 4,5,5,7,7,7,7,7 on it, if Salvador is going to make a row call, the number of ways he can order a row is as shown below;
Total number of cards = 10!
number of times the digit 5 was repeated = 2times
number of times the digit 7 was repeated = 5times
The number of ways he can make a row call = 10!/2!5!
= 10*9*8*7*6*5!/2*5!
= 10*9*8*7*6/2
= 10*9*8*7*3
= 15,120 different ways
Hence, the number of ways he can order the row is 15,120 number of ways.
Answer:
x=2
Step-by-step explanation:
3x+1=x+5
Subtract x from each side to get all the variables on one side
3x-x+1=x-x+5
2x+1 = 5
Subtract 1 from each side to get all the constants on the other side
2x+1-1 = 5-1
2x= 4
Divide each side by 2
2x/2 =4/2
x =2
so 75%of 20 is 15.00
and then we 20.00+15.00= 35.00
plus sales tax of 5%
so I got 36.75$ after taxs
Please look at the attached file
Answer:
The 40% marked up price of refrigerator is $1260.
Step-by-step explanation:
The cost price of the refrigerator = $900
Now, the mark up should be 40%
Calculating the markup on the cost price , we get
40 % of $900 = 
or, 40 % mark up = $360
Now, the Marked up cost = Cost Price + Marked up Price
= $900 + $360 = $1260
Hence, the 40% marked up price of refrigerator is $1260.
