Answer:
Jessica spent S28 on fruit at the grocery store. She spent a total of $40 at the store. What percentage of the total did she spend on fruit?
Step-by-step explanation:
Answer
I believe the variable is a but I'm not 100% positive sorry
Answer:
7
Step-by-step explanation:
7(x - 3) = 28 Given
7x - 21 = 28 Distributive property
7x - 21 + 21 = 28 + 21 Addition property of equality
7x = 49 Division Property of equality
7x/7=49/7
x = 7
<span>In a jar of ten beads; since 3 are blue; probability of picking a blue ball, B, = p(b) = 3/10. And P (of not picking a blue ball) ; p(b') = 7/10.
Since it occurs with replacement, probabilities doesn't change
Probaility of picking k blue balls from on n attempts is given by P_n(k)
P_n(k) = (n, k) p^(k) q^(n -k) where p and q are b and b' respectively.
P_5(2) = (5 , 2) (0.3)^(2) (0.7)^(5 - 2)
P_5(2) = 5C2 (0.3)^(2) (0.7)^(3) = 0.3087</span>
