Equation: 59.95+4x=64.95+2x
Solve for x:
2x=5
x=2.5
$2.5 for one pair of socks
Divide sales tax amount over the item's cost
23.1 / 330 = 0.07
Therefore the sales tax is 7%
Just choose x = 0,1,2,3 and find y for each x, for each of the tables.
<u>SOLUTION:</u>
General Equation: y = mx + b
.
Substitute slope = -2 into the equation:
y = -2x + b
.
Find the y-intercept:
4 = -2(-3) + b
4 = 6 + b
b = -2
.
Substitute b = -2 into the equation:
y = -2x - 2
.
Answer: y = -2x - 2
Answer: choice A 1/2
Step-by-step explanation:
Events A and B are independent if the equation P(A∩B) = P(A) · P(B) holds true.
so
1/3=2/3*p(B)
p(B)=1/2
