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3 years ago

To the nearest tenth of a cent, find the cost per ounce of a 15 oz. box of cereal costing $2.49.

Mathematics

1 answer:

Molodets [167]3 years ago

6 0

Answer: $2.50

for rounding to the tenths, look at the hundredths place and if it is more than 5 round up :)

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Solve:<br><br> 18/x = 2 + 36/x{2}

ollegr [7]

Answer:

x-3=-3

Step-by-step explanation:

6 0

2 years ago

Mrs. Elizondo runs around a 400-meter track at a constant speed of 250 meter per minute. How many minutes does it take Mrs. Eliz

anastassius [24]

Answer: See explanation

Step-by-step explanation:

From the information, we are told that Mrs. Elizondo runs around a 400-meter track. If she runs 4 laps, the total meters will be:

= 400 × 4

= 1600 meters

Since she uses a constant speed of 250 meter per minute. The number if minutes taken to complete the 4 laps will be gotten by dividing 1600 by 250. This will be:

= 1600 / 250

= 6.4 minutes

= 6 minutes + (0.4 × 60 seconds).

= 6 minutes 24 seconds

3 0

3 years ago

Please help me with this problem it is for my Geometry class.

makkiz [27]

9/7 or 1 2/7 is the answer. im pretty sure its right.

4 0

3 years ago

Suppose a company's revenue function is given by R(q) = - q^3 + 220q^2 and its cost function is given by C(q) = 500 + 13q, where

monitta

Answer:

A) MP(q) = -3q² + 440q - 13

B) 146.64 units.

Step-by-step explanation:

The profit function is given by the revenue minus the cost function:

$P(q) = R(q) - C(q)\\P(q) = -q^3+220q^2-500-13q$

A) The Marginal profit function is the derivate of the profit function as a function of the quantity sold:

$P(q) = -q^3+220q^2-500-13q\\MP(q) = \frac{dP(q)}{dq} \\MP(q)=-3q^2+440q-13$

B) The value of "q" for which the marginal profit function is zero is the number of items (in hundreds) that maximizes profit:

$MP(q)=0=-3q^2+440q-13\\q=\frac{-440\pm \sqrt{440^2-(4*(-3)*(-13))} }{-6}\\q'=146.64\\q'' = - 0.03$

Therefore, the only reasonable answer is that 146.64 hundred units must be sold in order to maximize profit.

4 0

2 years ago

1. Each letter of the English alphabet is written on a scrap of paper and put in a hat. P(J) = . What type of probability is ill

RideAnS [48]

The correct answer is A) theoretical, because the result is based on the number of possible outcomes.

There is 1 J out of 26 letters, so the probability would be 1/26.

8 0

2 years ago