Answer:
1 pair is $20. 3 pairs is $60. 4 pairs is $80. 5 pairs is $100. Please don't delete my answer, I am only trying to help.
First, multiply 4*2x-4*-5= 8x-20.
Second, add 15 to 8x-20
Third, that would equal 8x-20+15=11
Fourth, 15+-20= -5
Fifth, 8x-5=11
Sixth, add +5 to -5 and +5 to 11= 8x=16
Last, do 8x/8x and 16/8x
The answer is x=2
The number 1000 has three zeros which will move the decimal three times. But what in direction?
Well, when we multiply a number by 10, we move the decimal one place to the left.
So, the answer is three places to the left.
Use a percentage finder ;), also it will show you the work on some sites
;)
