Simultaneous equation linear equation question(please explain) Sophie is selling student and parent tickets for a school performance.
On night one, she sells 50 student tickets and 80 parent tickets and makes £340.
On night two, she sells 25 student tickets and 50 parent tickets and makes £200.

What is the cost for 1 student ticket and the cost for 1 parent ticket?

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$

Find │–14│ a. 14 b. –14 c. start fraction 1 over 14 end fraction

The probability that a u.s. resident has traveled to canada is 0.18 and to mexico is 0.09. a. if traveling to canada and traveling to mexico are independent events, what is the probability that a randomly-selected person has traveled to both? (page 109 in the book may ) b. it turns out that only 4% of u.s. residents have traveled to both countries. comparing this with your answer to part a, are the events independent? explain why or why not. (page 119 may ) c. using the %’s given, make a venn diagram to display this information. (don’t use your answer to part a.) d. using the conditional probability formula (page 114 in the book) and the %’s given, find the probability that a randomly-selected person has traveled to canada, if we know they have traveled to mexico.