Answer:
y = 2/3x+3
Step-by-step explanation:
Answer:
30 and 3.4641
Step-by-step explanation:
The mean of a binomial distribution is:
μ = np
And the standard deviation of a binomial distribution is:
σ = √(npq)
Here, n = 50, p = 0.60, and q = 0.40.
μ = np = 50 × 0.60 = 30
σ = √(npq) = √(50 × 0.60 × 0.40) = 3.4641
Answer:
3 dimes
Step-by-step explanation:
Part A: 0.10x + 0.25 = 0.80 (dimes are 10 cents or 0.10 dollars, quarters are 0.25 dollars)
Part B: Plug in what you DO know and solve the one you DON’T:
0.10x + 0.25(2) = 0.80
0.10x + 0.50 = 0.80. Subtract 0.50 from both sides:
0.10x = 0.30 (Divide both sides by 0.10)
x = 3
Answer:
w = -4
Step-by-step explanation:
-11w + 7 + 10w = 19 + 2w
-1w + 7 = 19 + 2w
-1w + 1w + 7 = 19 + 2w + 1w
7 = 19 + 3w
7 - 19 = 19 - 19 + 3w
-12 = 3w

-4 = w