Answer:
The answer us B y= -8/7x -18/7
Hello! The sale price is $119, and the camera has been discounted by 15%. Even with the discount, 85% of the original price is still paid. 100% makes the whole price and 100 - 15 is 85. To find the original price of the camera, we can write and solve a proportion. Set it up like this:
119/x = 85/100
This is because 119 is part of the whole and is 85% of the original price. Remember that 85% is part of 100%. Let's cross multiply. 119 * 100 is 11,900. 85 * x is 85x. That makes 11,900 = 85x. Now, divide each side by 85 to isolate the x. 85x/85 cancels out. 11,900/85 is 140. Let's check that number and see if it works. 140 * 85% (0.85) is 119. There. x = 140. The original price of the camera was $140.
Answer:
x = ±6
Step-by-step explanation:
6x² - 216 = 0
( Add 216 to both sides )
6x² = 216
( Divide both sides by 6 to isolate x² )
x² = 36
( Square root both sides to isolate x )
x = ±6
Answer:
6000000 sq yd
Step-by-step explanation:
Data provided in the question:
Length of the fencing = 7000 yd
let the perpendicular sides be 'P'
and the length parallel to the river be 'L'
according to the given question
L = P + 2500 ............(1)
also,
Length to be fenced = 2P + L
thus,
2P + L = 7000 ...........(2)
substituting L from (1), we get
2P + P + 2500 = 7000
or
3P = 7000 - 2500
or
3P = 4500
or
P = 1500 yd
Thus,
L = 1500 + 2500 = 4000 yd
Therefore,
the area of the rectangular land = L × P = 4000 × 1500 = 6000000 sq yd
You need to multiply both numbers inside the parentheses by 5:
5 times x = 5x
5 times 7 = 35
So your answer is B. 5x + 35