Answer:
25%
Step-by-step explanation:
Say we start from the beginning with $40. If the pants are discounted but we don't know the percent discount, then we need a variable, x:
40 - x% * 40 = 30
The total is 40. When we take a discount off of 40, we are taking a percent of 40 and subtracting that from 40. From the problem, this should be 30. Thus, the equation above.
Add x%*40 to both sides and subtract 30 from both sides:
x%*40 = 10
Divide by 40:
x% = 1/4 = 0.25
Multiply each side by 100:
x = 25
The answer is 25%.
Answer:
When x=8, y=-6. When x=10, y=0
Step-by-step explanation:
You can plug the given y value into the second equation to get:
Hope this helps!
Answer: 25x^2 - 1^2
Explanation:
(5x+1) (5x-1)
(5x)^2 - 1^2
25x^2 - 1^2
Answer: You're answer is 7.
Step-by-step explanation: 2+2=4+4=8-1=7
Eighty seven written in standard form would be...
80 + 7 = 87
Good Luck! :)
