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3 years ago

12

A large simple random sample of people aged nineteen to thirty living in the state of colorado was surveyed to determine which o

f the mp3 players

1 answer:

sleet_krkn [62]3 years ago

4 0

<span>The iPhone proved to be the most used mp3 player of people living in Colorado from ages 19 to 30. The iPod was a close second. Other notable mentions were the SanDisk mp3 player and Sony's Walkman mp3 player.</span>

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A restaurant sells burritos for $8.00 each. The cost of the meat is $1.50 and the cost of the

melisa1 [442]

the cost of making one burrito is the addition of the cost of the meat and the other ingredients:

1.00+1.50=2.50

Then the cost of the burrito is -$2.50

PLEASE MARK ME AS BRAINLIEST

8 0

3 years ago

A car rental agency advertised renting a car for $24.95 per day and $0.32 per mile. If Kevin rents this car for 2 days, how many

kkurt [141]

Answer:

fhiurgbnrb

Step-by-step explanation:

5

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3 years ago

22 points !!! multiply. express your answer as a fraction simplest form. 8.33 x 144

dem82 [27]

Answer:

99 24/25

Step-by-step explanation:

8.33*√144=

8.33*12=99 24/25 or 100 with 8.33 bar

8 0

3 years ago

Read 2 more answers

Suppose that qequals30, Lequals5, and Kequals15 is a point on the production function qequalsf(L, K). Is it posssible for qe

Kamila [148]

Answer:

No

Step-by-step explanation:

If q=30, L=5, and K=15 is a point on the production function q=f(L, K).

Production function is an equation that expresses the relationship between the quantities of factors of production used and the amount of product obtained under the assumption that the most efficient available methods of production are used.

The combination q=30, L=5, and K=16 cannot be a point because we assume production functions are efficient.

7 0

3 years ago

Read 2 more answers

Oil is pumped continuously from a well at a rate proportional to the amount of oil left in the well. Initially there were millio

JulijaS [17]

Answer:

The amount of oil was decreasing at 69300 barrels, yearly

Step-by-step explanation:

Given

$Initial =1\ million$

$6\ years\ later = 500,000$

Required

At what rate did oil decrease when 600000 barrels remain

To do this, we make use of the following notations

t = Time

A = Amount left in the well

So:

$\frac{dA}{dt} = kA$

Where k represents the constant of proportionality

$\frac{dA}{dt} = kA$

Multiply both sides by dt/A

$\frac{dA}{dt} * \frac{dt}{A} = kA * \frac{dt}{A}$

$\frac{dA}{A} = k\ dt$

Integrate both sides

$\int\ {\frac{dA}{A} = \int\ {k\ dt}$

$ln\ A = kt + lnC$

Make A, the subject

$A = Ce^{kt}$

$t = 0\ when\ A =1\ million$ i.e. At initial

So, we have:

$A = Ce^{kt}$

$1000000 = Ce^{k*0}$

$1000000 = Ce^{0}$

$1000000 = C*1$

$1000000 = C$

$C =1000000$

Substitute $C =1000000$ in $A = Ce^{kt}$

$A = 1000000e^{kt}$

To solve for k;

$6\ years\ later = 500,000$

i.e.

$t = 6\ A = 500000$

So:

$500000= 1000000e^{k*6}$

Divide both sides by 1000000

$0.5= e^{k*6}$

Take natural logarithm (ln) of both sides

$ln(0.5) = ln(e^{k*6})$

$ln(0.5) = k*6$

Solve for k

$k = \frac{ln(0.5)}{6}$

$k = \frac{-0.693}{6}$

$k = -0.1155$

Recall that:

$\frac{dA}{dt} = kA$

Where

$\frac{dA}{dt}$ = Rate

So, when

$A = 600000$

The rate is:

$\frac{dA}{dt} = -0.1155 * 600000$

$\frac{dA}{dt} = -69300$

<em>Hence, the amount of oil was decreasing at 69300 barrels, yearly</em>

7 0

2 years ago