Choose the correct words from the drop-down menu to make a true statement about the system of equations. 2x + y = 2 y = –2x – 1

Mathematics

1 answer:

jeyben [28]2 years ago

5 0

Well what does the x represent

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HELP THIS IS WORTH 40 POINTS Lucy has a jewelry business. To make a certain necklace, she spends $3.38 on materials and $5.57 on

ankoles [38]

A.) If Lucy sells 1 necklace, her sales would equal to $15.99. Then her profit would be:

Profit = $15.99 - $3.38(1) - $5.57(1)
Profit = $7.04

The fraction of the sale price of the necklace in profit is denoted as x.

15.99x = 7.04
x = 704/1559

b.) This is the same as part (a) but in decimal form. Just simply divide 704 by 1559. The answer is 0.44

c.) If Lucy's sales is $223.86 and each necklace costs $15.99, then the number of necklaces sold is $223.86 ÷ $15.99/necklace = 14 necklaces

Her profit for the 14 necklaces sold would be:

$223.86 - $3.38(14) - $5.57(14) = $98.56

7 0

2 years ago

Read 2 more answers

A store has a sale on paper cups, 200 cups for $15.00. During the sale, what is the unit price per cup?

Anna35 [415]

Answer:

it's either 200:15 or 20:15 or 15:20

Step-by-step explanation:

6 0

3 years ago

Anna saves 3 dollars for every 10 dollars she earns.Patrick saves 5 dollars for every 20 dollars he earns.Do the two save money

NNADVOKAT [17]

The two do not save money at the same rate, because if you make common denominators of 20, Anna saves 6 dollars for every 20, while Patrick only saves 5 dollars for every twenty earned. So, Anna ends up saving more than Patrick.

4 0

2 years ago

If g(x)= 2x^4+3x^3-x^2, find g(-1)

Nostrana [21]

When you have a function of g(-1) you first plug in -1 to all x's then you solve it.

Answer: x=0

7 0

2 years ago

I just need no. a please help me to prove this.

OleMash [197]

Answer: see proof below

<u>Step-by-step explanation:</u>

Given: A + B + C = π and cos A = cos B · cos C