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1 year ago

Nestor works at a garden center where he pots plants. It take's him 2 1/2 hours to pot 15 plants.

Mathematics

2 answers:

Aneli [31]1 year ago

7 0

Answer:

6 per hour

Step-by-step explanation:you would divide 15 by 2 and 1/2

iren [92.7K]1 year ago

5 0

<h2>Answer:</h2>

The number of plants Nestor will pot in 1 hour is:

6 plants.

The number of plants that he will be able to pot in 3 1/2 hour is:

21 plants.

<h2>Step-by-step explanation:</h2>

It is given that:

Nestor takes 2 1/2 hours to pot 15 plants.

i.e.

It takes him 5/2 hours to pot 15 plants.

Hence, In 1 hour he will pot:

$\dfrac{15}{\dfrac{5}{2}}\ \text{plants}\\\\=\dfrac{15\times 2}{5}\ \text{plants}\\\\=6\ \text{plants}$

Also, if he continues to work at the same rate then the number of plants he will pot in 3 1/2 hour is:

( We know that:

$3\dfrac{1}{2}=\dfrac{3\times 2+1}{2}\\\\i.e.\\\\3\dfrac{1}{2}=\dfrac{7}{2}\ \text{hour}$ )

Hence, the number of plants that will be potted in 7/2 hours is:

$=6\times \dfrac{7}{2}\\\\=21\ \text{plants}$

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Jonathan has a bag that has 2 red marbles and 3 blue marbles inside of it if you were to pick one marble from the bag without lo

Vika [28.1K]

There are 2 red marbles and 3 blue marbles, with a total of 5 marbles in the bag.

When Jonathan chooses a marble, we are saying that he is choosing the marble randomly.

Let's make a fraction. We want to know the chance of picking one of the 2 red marbles among all 5 marbles.

Divide 2 by 5

2/5

That's already a simplified fraction. If you want to convert this into decimal and into percentage, you would get

2/5
= 0.4
= 40%

Those are all acceptable answers.
Have an awesome day! :)

8 0

2 years ago

The constant-pressure specific heat of air at 25°C is 1.005 kJ/kg. °C. Express this value in kJ/kg.K, J/g.°C, kcal/ kg. °C, and

Mice21 [21]

Answer:

In kJ/kg.K - 1.005 kJ/kg degrees Kalvin.

In J/g.°C - 1.005 J/g °C

In kcal/ kg °C 0.240 kcal/kg °C

In Btu/lbm-°F 0.240 Btu/lbm degree F

Step-by-step explanation:

given data:

specific heat of air = 1.005 kJ/kg °C

In kJ/kg.K

1.005 kJ./kg °C = 1.005 kJ/kg degrees Kelvin.

In J/g.°C

$1.005 kJ./kg °C \times 1000/1kJ \times (1kg/1000 g) = 1.005J/g °C$

In kcal/ kg °C

$1.005 kJ./kg °C \times \frac{1 kcal}{4.190 kJ} = 0.240 kcal/kg °C$

For kJ/kg. °C to Btu/lbm-°F

Need to convert by taking following conversion ,From kJ to Btu, from kg to lbm and from degrees C to F.

$1.005 kJ./kg °C \times \frac{1 Btu}{1.055 kJ} \times \frac{0.453 kg}{1 lbm} \times \frac{5/9 degree C}{1 degree F} = 0.240 Btu/ lbm / degree F$

1.005 kJ/kg C = 0.240 Btu/lbm degree F

8 0

2 years ago

A daycare made $40 during their first month in business. They doubled the amount of money they earned each month. What is the to

AfilCa [17]

Answer:

$81,920

Step-by-step explanation:

money made by january: $40

double that

money made by february: $80

double that

money made by march: $160

double that

money made by april: $320

double that

money made by may: $640

double that

money made by june: $1,280

double that

money made by july: $2,560

double that

money made by august: $5,120

double that

money made by september: $10,240

double that

money made by october: $20,480

double that

money made by november: $40,960

double that

money made by december: $81,920

the total money they made by the end of the year (december) was $81,920

6 0

2 years ago

Read 2 more answers

The nutrition facts label on a container of dry roasted cashews indicates there are 161 calories in 28 grams. You eat 9 cashews

RoseWind [281]

Answer:

there are 161 calories in 28 gram,then:

one gram of dry roasted cashews contains=161/28=5.75 calories

You eat 12 gram of it, =12*5.75=69 calories

9 cashews has 12gram, then:

one gram of dry roasted cashews contains= 9/12 = 0.75 cashews

there are total of 28gram in one serving.

Therefore cashews in one serving = 0.75*28=21cashews

a)69 calories

b)21cashews

4 0

2 years ago

Parallel Processing uses two or more computers, working together, to solving a problem. You connect two different computers; com

MrRissso [65]

Answer:

together rate = 1/20 min/job

one comp. rate = 1/(x-9) min/job

2nd comp. rate = 1/x min/job

-------------------------------

Equation:

rate + rate = together rate

1/x + 1/(x-9) = 1/20

---

20(x-9) + 20x = x(x-9)

40x-9*20 = x^2-9x

---

x^2-49x + 180 = 0

Factor:

(x-45)(x-4) = 0

Realistic solution since 4-9 is negative:

x = 45 minutes

then

x-9 = 36 minutes (faster computer time to do the job)

Step-by-step explanation:

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1 year ago