There’s this website math papa and it gives the answer step by step anyway here you go this is your answer x=1
Hello there.
<span>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.
</span><span>
(a)How much profit does Lucy earn when she sells a necklace? What fraction of the sale price of the necklace is profit? Record your answer as a fraction using whole numbers.
</span>the fraction of the sale price of this necklace would be (704/1599).
<span>c) Lucy collected $223.86 selling necklaces at a craft fair. How many necklaces did Lucy sell? How much profit did she earn?
</span>223.86/15.99=14 necklaces. 14(7.04)=$98.56 of profit.
Just plug in the square root of 100 in your calculator (10) and then either leave it as 10/49 or simplify it to a decimal...depending on what your teacher is expecting from you.
Answer:
120 problems
Step-by-step explanation:
Given
Required
Determine the number of questions
To do this, we simply multiply the earnings by the number of problems.
This gives:
<em>The students answered 120 problems correctly</em>
ratio of boys : girls : all students
7 : 5 : 12
multiply all by 13
91 : 65 : 156
there are 65 girls