$\mathrm{Total \ sample \ space \ $=100$} \\\mathrm{Event \ $A = \ taking \ subway \ each \ day}$$P(A)=0.85$$Event $B=$ taking taxi $\because P(B)=0.6$$$P(A \cap B)=0.55$$$

$\begin{aligned}P(A \cup B) & \Rightarrow \text { Person taking either taxi/subway } \\&=P(A)+P(B)-P(A \cap B) \\&=(0.85-0.555)+(0.6-0.55)-0.55 \\&=1.45-0.55\\&\bf{=0.9} \end{aligned}$

7 0

2 years ago

Steve spent a total of $43.78 to buy some school supplies that would be needed for the year. He spent $27.86 for a backpack, and

Nataly_w [17]

You can multiply the price of the journals with the answer choices and add that amount with how much his backpack cost and that'll give you your final cost.

<h2>Answer: C. 4 notebooks</h2>

5 0

2 years ago