Answer:
<h2>Number 40 appeared in Pattern B. Also, according to the rule, each pattern will increase.</h2>
Step-by-step explanation:
Let's develop each sequence. Remembe that the rule is "add 15", that's what we need to create each sequence starting from the given initial number.
<h3>Pattern A.</h3>

<h3>Pattern B.</h3>

<h3>Pattern C.</h3>

As you can observe, number 40 appeared in Pattern B. Also, according to the rule, each pattern will increase.
X*80+y*60= 50*74
x +y =50 | * ( -60)
80x + 60y= 50*74
-60x - 60y=-50*60
---------------------------
20x= 50*(74-60)=50*14
x=50*14/20=35 pounds of 80 cents tea
y=50-35=15 pounds of 60 cents tea
He needs at least 2 gallons of the stain; though he will not use all of the second gallon
Answer:
Step-by-step explanation:
I dont know either help
Answer:
Option C: 0.28
Step-by-step explanation:
This is a binomial probability distribution problem.
Now, we want to find the probability that at least 2 thumbtacks land pointing up when 5 thumbtacks are tossed. This is written as;
P(X ≥ 2) = P(2) + P(3) + P(4) + P(5)
From the histogram;
P(5) = 0.02
P(4) = 0.02
P(3) = 0.05
P(2) = 0.19
Thus;
P(X ≥ 2) = 0.19 + 0.05 + 0.02 + 0.02
P(X ≥ 2) = 0.28