Question

PLEASE HELP I MADE WORTH 20 POINTS I ALSO WILL GIVE A BRAINLIEST TO FIRST CORRECT ANSWER AND ALSO I WILL GIVE A THANKS AND 5 STARS TO CORRECT ANSWER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!





Izzy wants to raise money for new equipment by selling T-shirts. He
pays $5.30 for each T-shirt and needs to raise $465. If 75 students order T-shirts, by what percent must Izzy mark up the T-shirts to raise $465? What is the selling price of each T-shirt? EXPLAIN. PLEASE EXPLAIN !!!!!!!!!!!!!!!!!!

Answer 1

$\bf \blue{ANSWER}$

84% of a contractor’s jobs involves electrical work. 75% of a contractor’s jobs involve plumbing work. Of the jobs that involve plumbing, 90% of the jobs also involves electrical work. Let E = jobs involving electrical work L = jobs involving plumbing work Suppose one of the contractor’s jobs is randomly selected. Using the sixth Excel worksheet, a) Find P(E). 0.84 b) Find P(L). 0.75 c) In words, what does E | L mean? d) Find P(E | L). e) Find P(E and L). f) Are E and L independent events? Why or why not? g) Find P(E or L).

Answer 2

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Ok so this is gonna get a little confusing:

so he buys 75 shirts $5.30/shirt = $397.50he has to make $465 above the $397.50 which equals $862.50that means that to make the amount needed, he would have to sell each shirt $11.50/shirt

$5.30/$11.50= .4608695. meaning that the shirts would have to be marked up roughly 46.09% for izzy to make the $465 above the cost of the shirts