Answer:-2x^2+3x-7=0
Step-by-step explanation:
75% of 340 is 85 so 85 laptops were sold at Best Bargin
Answer:
or y = 0.25x + 0.5
Step-by-step explanation:
You need to try change the subject from x to y.
x = 4y - 2
We first move -2 to the left, making the equation
x + 2 = 4y i.e.
4y = x + 2
We then divide both sides by 4.
or y = 0.25x + 0.5
We now have successfully made y the subject, and effectively solving the equation.
Answer:
9 nickels
Step-by-step explanation:
He has 17 coins.
$1.25 is 12 dimes and 1 nickel. But that is only 13 coins.
$1.25 can only be 17 coins if there were 9 nickels and 8 dimes.
Answer:
y = k/(x+2) squared
substitute y and x to find the value of k.
k =50
nxt used the value of k with same formula:.
y= 50/ (8+2) squared
y =1/2