Simplify the expression

Lyla is shopping for school supplies. She has $20.00 to spend. She plans to buy a package of pens for $4.98. She also wants to b

kifflom [539]

X divided by 30 because it is going down by 30 percent.. :)

7 0

3 years ago

Read 2 more answers

Help please I really need it

gtnhenbr [62]

So we want to solve 2x − 40 = 3y for x2x − 40 + 40 = 3y + 40(Add 40 to both sides!)2x = 3y + 40
Now divide both sides by 2!
 $\frac{2x}{2} = \frac{3y + 40}{2} \ \textgreater \ x = \frac{3}{2}y + 20$
Now substitute $\frac{3}{2}y + 20 for x in 2y = -4x + 48

$
$2y = -4( \frac{3}{2}y + 20) + 48$
Which then gives us..
2y = −6y − 32(Make sure to simplify both sides of the equation)2y + 6y = −6y − 32 + 6y(Now add 6y to both sides)8y = −32
Now divide both sides by 8
 $\frac{8y}{8} = \frac{-32}{8} \ \textgreater \ y = -4$
Now we have to substitute -4 for y in $x = \frac{3}{2}y + 20 \ \textgreater \ \frac{3}{2}(-4) + 20 \ \textgreater \ x = 14$
So we end up getting...
x = 14 and y = −4.
Hope this helps!

7 0

3 years ago

Does anybody know what the answer to this question is?

crimeas [40]

Answer:

equation 15+8=

solution= 23

Step-by-step explanation:

its ez

7 0

3 years ago

Wesley sailed his boat north for 18 miles then due east for another 18 miles approximately how far is Wesley from where he began

True [87]

18 miles north
+18 miles east
=36 miles northeast

5 0

4 years ago

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A small publishing company is releasing a new book. The production costs will include a one-time fixed cost for editing and an a

svetoff [14.1K]

The profit equation which relates P, profit to N, quantity produced and sold is:

P=17.75N-750

What is the total cost function?

The total production cost function, whereby total cost is C is as given below:

C=750+15.95N(look at a similar question provided)

What is the total revenue function?

The total revenue function is as given below:

R=33.70N

The profit is the excess of total revenue over total cost, in other words, profit is the total revenue minus total cost

P=33.70N-(750+15.95N)

P=33.70N-750-15.95N

P=33.70N-15.95N-750

P=17.75N-750

Find out more about profit function on: brainly.com/question/25668243

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Similar question:

A small publishing company is releasing a new book. The production costs will include a one-time fixed cost for editing and an additional cost for each book printed. The total production cost C (in dollars) is given by the function C=650+18.95N , where N is the number of books. The total revenue earned (in dollars) from selling the books is given by the function R=32.80N . Let P be the profit made (in dollars). Write an equation relating P to N . Simplify your answer as much as possible.

4 0

2 years ago