What the what am I looking at
I dont know, im working it out now, or im trying to
Answer:
New price= Increament + old price
Step-by-step explanation:
Given data
Old price = $5.40
Percent increase= 8%
New price= $5.83
Let find the increment
=8/100*5.40
=0.08*5.40
=$0.432
New price= Increament + old price
New price=0.432+5.40
New price=$5.83
X + y = 9 Subtract x from both sides.
y = 9 - x
x^2 + y^2 = 53
x^2 + (9 - x)^2 = 53 Remove the brackets.
x^2 + 81 - 18x + x^2 = 53 Collect the like terms on the left.
2x^2 - 18x + 81 = 53 Subtract 53 from both sides.
2x^2 - 18x + 81 - 53 = 0
2x^2 - 18x + 28 = 0 This factors, but you can see it much easier if you pull out 2 as a common factor.
2(x^2 - 9x + 14) = 0
2(x - 2)(x - 7) =0 You could divide by 2 on both sides. But you can also leave it.
x - 2 = 0
x = 2
x - 7 = 0
x = 7
If x = 2 then y = 7
If x = 7 then y = 2
