Answer:
$15.30
Step-by-step explanation:
To find 17% of 90 you would have to do;
0.17x90 = 15.3
Therefore, the tip would come out to be $15.30
Answer:
66
Step-by-step explanation:
the order of operations is the acronym PEMDAS which stands for:
P: Parentheses
E: Exponents
M & D: Multiplication and Division
A & S: Addition and Subtraction
we do these in order, from left to right in the equation
for the equation (14 - 8) x (15 - 4), we would start with solving the parentheses
there are 2 sets of parentheses, so we will go from left to right in solving it:
(14 - 8) = 6
(15 - 4) = 11
we replace the values we have found from the parentheses into the equation
6 x 11
now we go through the list
we can already eliminate exponents because there are none in this equation
the next step is multiplication & division, in this equation there is only multiplication, so we multiply 6 x 11 which gives us the answer 66
there is nothing left for us to do at this point, so 66 is our final answer
Answer: Two
Step-by-step explanation:
5x-4y=8, 3x+2y=8:
Δ = b² - 4ac
Δ = (6)² - 4(2)(12)
Δ = 36 - 4(24)
Δ = 36 - 96
Δ = -60
y = 2x² + 6x + 12
0 = 2x² + 6x + 12
0 = 2(x²) + 2(3x) + 2(6)
0 = 2(x² + 3x + 6)
2 2
0 = x² + 3x + 6
x = -(3) ± √((3)² - 4(1)(6))
2(1)
x = -3 ± √(9 - 4(6))
2
x = -3 ± √(9 - 24)
2
x = -3 ± √(-15)
2
x = -3 ± i√(15)
2
x = -1.5 ± 0.5i√(15)
x = -1.5 + 0.5i√(15) or x = -1.5 - 0.5i√(15)
The discriminant is -60 and the number of solutions is 2.
Answer:
Step-by-step explanation:
the total cost for this question is $12.10.
let me know if this helped.