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Genrish500
10 days ago
7

A certain family plan costs $55 per month plus additional usage costs. If x is the number of cell phone minutes used above the p

lan amount and y is the number of megabytes of data used above the plan amount, interpret the following expressions.. a. 0.25x. b. 2y. c. 0.25x + 2y + 55. . I'm not sure if I'm supposed to write the expression out verbally and that's all or do more.
Mathematics
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Adrianne jogs for 15 minutes at 6 miles per hour. How many miles does she jog?
Svet_ta [12734]

Response: 3.2

Detailed explanation:

3 0
2 months ago
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A ship anchored in a port has a ladder which hangs over the side. The length of the ladder is 200cm, the distance between each r
Leona [12618]

Response:

The answer to the inquiry is 8 hours.

Step-by-step breakdown:

Information

Ladder length = 200 cm

Distance between rungs = 20 cm

Tide rise rate = 10 cm/h

Fifth rung =?

Procedure

1.- Determine the total height the tide must reach

Height = 20 cm x 4

                 = 80 cm   as the first rung is touching the water.

2.- Calculate the time needed

Rate = distance / time

-Solve for time

Time = distance / rate

-Substitute values

Time = 80 cm / 10 cm/h

-Final outcome

Time = 8 hours.

3 0
2 months ago
A gazebo is being built near a nature trail. An equation of the line representing the nature trail is y = 13x−4. Each unit in th
PIT_PIT [12445]

Respuesta:

126 pies

Explicación paso a paso:

Dado que:

Ecuación de la línea que representa el sendero de naturaleza:

y = 13x - 4

Distancia del gazebo respecto al sendero de naturaleza:

Cada unidad en el plano de coordenadas = 10 pies

Por lo tanto,

y = 13(10) - 4

y = 130 - 4

y = 126 pies

6 0
2 months ago
Biologists stocked a lake with 240 fish and estimated the carrying capacity (the maximal population for the fish of that species
Inessa [12570]

Answer:

2.30 years

Step-by-step explanation:

The fish population increased threefold in the first year, resulting in 240 * 3 = 720 fish.

(a) The logistic equation can be represented as follows

P = P_0e^{kt}

where P0 = 240 denotes the initial fish count; substituting P = 720 and t = 1 allows us to determine the constant k

720 = 240e^{1k}

e^k = 3

k = ln3 = 1.1

b) By applying the formula below

P = P_0e^{kt}

with P set to 3000, P0 as 240, and k equal to 1.1, we can compute the duration needed for the population to reach 3000 fish

3000 = 240e^{1.1t}

12.5 = e^{1.1t}

1.1t = ln12.5 = 2.53

t = 2.30 years

6 0
2 months ago
Linh buys two T-shirts for $12 each, a pair of shoes for $28, and a pair of jeans for $45. She has a coupon for 30 percent off h
lawyer [12517]
12x2= $24
24 + 28 + 45 = $97

Thus, $97 represents the total amount (100%)

Calculating 100% - 30% gives 70% (with 30% discount)
(noting that 70% equals 70/100 or 0.7)

Therefore, 97 x 0.7 = $67.90
7 0
2 months ago
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