Mathematics, 08.01.2020 23:31 mirandac9394
1. lucy has a jewelry business. to make a certain necklace, she spends $3.38 on materials and $5.57 on labor. she then sells the necklace for $15.99. lucy’s profit on the necklace is equal to the sale price minus the cost of materials and labor.
(a) how much profit does lucy earn when she sells a necklace? show your work.
(b) write a fraction of the profit per sale price of the necklace. record your answer as a fraction using whole numbers.
(c) what decimal of every dollar of the sale price of the necklace is profit using the fraction from part (b)? show your work. round your answer to the nearest hundredth.
(d) lucy collected $223.86 selling necklaces at a craft fair. how many necklaces did lucy sell? show your work.
(e) how much profit did she earn from the number of necklaces she sold? show your work.
Answers: 2
Mathematics, 21.06.2019 22:20
The school track has eight lanes. each lane is 1.25 meters wide. the arc at each end of the track is 180. the distance of the home straight and the radii for the arcs in the 1st 4 lanes are given. s=85m r1=36.5m r2=37.75m r3=39m r4=40.25m part one: find the radii of lanes 5 through 8 of the track. show your work. part two: if max ran around lane one, how far did he run? show your work and explain your solution. part three: max wants to run a total of three laps around the track, choose two additional lanes (2-8) for him to run and find the distance around those two lanes. show your work and round to the hundredths. part 4: based on your lane choices in part three, what was the total distance max ran in the three laps around the track?
Answers: 2
Mathematics, 21.06.2019 22:50
Which best explains why this triangle is or is not a right triangle ?
Answers: 2
1. lucy has a jewelry business. to make a certain necklace, she spends $3.38 on materials and $5.57...
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