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klemol [59]
3 years ago
5

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? What fraction of the sale price of the necklace is profit? Record your answer as a fraction using whole numbers. (b) What decimal of every dollar of the sale price of the necklace is profit? Show your work. Round your answer to the nearest hundredth. (c) Lucy collected $223.86 selling necklaces at a craft fair. How many necklaces did Lucy sell? How much profit did she earn? Show your work. ID PREFER AN EXPERT TO ANSWER THIS QUESTION OR HIGHER. BEST ANSWER GETS BRAINLIEST
Mathematics
1 answer:
GuDViN [60]3 years ago
7 0
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.
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The amount of the first alloy is 450 grams and the amount of the second alloy is 30 grams.

<h3>What is a linear equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have:

A chemist has two alloys, one of which is 5% gold and 20% lead and the other which is 30% gold and 50% lead.

Let's suppose the x is the amount of the first alloy and y is the amount of the second alloy:

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After solving the above two linear equations by substitution method, we get:

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In Step 2, the student tried using the Distributive Property. The Distributive Property can be written as one of the two following formulas:

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The student first made an error in Step 2, and the correct step is:

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