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4 years ago

11

shawna found out there are 4 yellow pencils for every blue pencil Write an equation for this situation. How do i write this as a

n equation?

2 answers:

Vlad1618 [11]4 years ago

6 0

Yeah,4x causes is caribe and 4 times x

k0ka [10]4 years ago

5 0

4x or 4 times the variable x (*x meaning blue pencils*)

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Please assist me with these problems

blondinia [14]

Answer:

The function of f(x) is 20 for the middle problem idk the others

Step-by-step explanation:

3 0

3 years ago

Julie makes and sells shirts for children and adults. She sells the shirts for $20 per unit. Material for

Alisiya [41]

Answer:

Julie need to sell at least 45 shirts to break even.

Step-by-step explanation:

The selling cost of each shirt = $ 20

Cost of each shirt = $6

The fixed cost per month = $420

Number of shirts she can make = 80

Hence, the <u>cost of making 80 shirts</u> = 80 x $6 = $480

So, her total capital investment of the month

= Cost of shirts made + Fixed cost = $420 + $480 = $900

Now, let us assume she sell k number of shirts.

⇒ $20 x k = $900

or, k = 900 / 20 = 45

or, k = 45

Hence, Julie need to sell at least 45 shirts to break even.

6 0

3 years ago

Three cubic feet of seawater weigh 192 pounds.

sweet-ann [11.9K]

Answer:

<em>3731.2 pounds</em>

Step-by-step explanation:

<em>Aquarium will hold 4.4 * 2.5 * 5.3 = 58.3 cubic feet of sea water.</em>

<em>For 3 cubic feet of sea water, weight is 192 pounds</em>

<em>For 58.3 cubic feet of sea water,</em>

<em>( 192 * 58.3) / 3 = 11193.6 / 3 = 3731.2 pounds</em>

6 0

3 years ago

If exactly 180 people sign up for a charter flight, Leisure World Travel Agency charges $298/person. However, if more than 180 p

lesantik [10]

Answer:

The max. revenue is $57,121.

This happens with 239 passengers.

The price of the ticket is $239 per person.

Step-by-step explanation:

Let the variable "P" denote the number of passengers.

If P=180, then the ticket cost is $298/person. Then the price is reduced by $1 for each additional person.

In general, if P=(180+x), then the ticket cost becomes (298-x) per person.

The revenue can be defined as the ticket cost multplied by the number of passengers:

$R=P*T=(180+x)(298-x)=53,640-180x+298x-x^2\\\\R(x)=-x^2+118x+53,640$

We can derive R and equal to zero to maximize the function.

$dR/dx=-2x+118=0\\\\x=118/2=59$

The amount of passengers is:

$P=180+x=180+59=239$

The price of the tickets is

$T=298-59=239$

The revenue is:

$R(59)=(180+59)(298-59)=239*239\\\\R(59)=57,121$

3 0

3 years ago

Given that 3x + y = 0 and 2x - y = 5, find the value of y.

professor190 [17]

Answer:

<em>3x</em><em> </em><em>+</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>0</em>

<em>x</em><em> </em><em>=</em><em> </em><em>-</em><em>y</em><em>/</em><em>3</em>

<em>Now</em><em>,</em><em> </em>

<em>2x</em><em> </em><em>-</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>5</em>

<em>2</em><em> </em><em>(</em><em>-</em><em>y</em><em>/</em><em>3</em><em>)</em><em> </em><em>-</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>5</em>

<em>(</em><em>-</em><em>2y</em><em> </em><em>-</em><em> </em><em>3y</em><em>)</em><em>/</em><em>3</em><em> </em><em>=</em><em> </em><em>5</em>

<em>-</em><em>5y</em><em>/</em><em>3</em><em> </em><em>=</em><em>5</em>

<u><em>y</em><em>=</em><em>-</em><em>3</em></u>

<em>#</em><em>$</em><em>#HOPE</em><em> </em><em>YOU</em><em> </em><em>UNDERSTAND</em><em> </em><em>#</em><em>$</em><em>#</em>

<em>#</em><em>$</em><em>¥</em><em> </em><em>THANK</em><em> </em><em>YOU</em><em> </em><em> ¥</em><em>$</em><em>#</em>

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4 0

4 years ago