First we need to know the total area. Since this is a rectangle we need two adjacent sides and we can find these from vertex pairing:
Matching y: (3,9) --> (5,9) = 2 ft
Matching x: (3,9) --> (3,3) = 6 ft
Area = l*w = 2*6 = 12 square ft
# of bags = 12sqft/(5sqft/bag) = 2.4 bags.
Cost = $5.00 * 2.4 = $12 (notice that it cost $1 to cover 1sqft so we could have skipped a step here.)
NOTE: In the real world she probably can't buy just 0.4 of a bag and would actually have to buy three full bags for $15.
Answer:
234.25 miles
Step-by-step explanation:
19+18+17+16+15+14+13+12+10+9+8+7+6+5+4+3+2+1=179
5+(20-1)*5+0.75*179
5+19*5+134.25
5+95+134.25
100+134.25
234.25
<span>Using the information we have
3x+4=40
Do the same to each side of the equation to eliminate for x.
3x+4=40 Minus 4 from each side
3x=40-4
3x=36
Divide 3 from each side
x=36/3
x=12
AC=3x+4
insert the value of x
3(12)+4=40
AC=40
AD=20</span>
Answer:
0.34134
Step-by-step explanation:
In other to solve for this question, we would be using the z score formula
z = (x - μ) / σ
x = raw score
μ = mean
σ = Standard deviation
We are told in the question to find the probability that a worker selected at random makes between $350 and $400
let x1 = 350 and x2= 400 with the mean μ = 400 and standard deviation σ = $50.
z1 = (x1 - μ) / σ = (350-400) / 50 = -1
z2 = (x2 - μ) / σ = (400 - 400) / 50 = (0/50) = 0
From tables, P(z <= -1) = 0.15866
P(z <= 0) = 0.5
Then, the probability would give us, P(-1 ≤ z ≤ 0) =0.5 - 0.15866 =
0.34134
Hence, The probability that a worker selected at random makes between $350 and $400 = 0.34134
