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3 years ago

7

Ben walked into a hardware store and asked the price of some items. The salesman said: One costs $1 Eight costs $1 Seventeen cos

t $2 One hundred four costs $3 One thousand seventy two costs $4 What was Ben buying?

1 answer:

Mars2501 [29]3 years ago

8 0

Ben was buying home address numbers and they cost $1 per digit.

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t uses overlapping shapes (usually circles)to show or represent the similarities and differences between two or more items or co

zlopas [31]

Hzmdndjdjsjajxbdbsbsbbdbdbdhdhsjsajakkaakakakakskkskskakakakaksksbxbzxbxbzbxbzbzbzbzbdbdbdhdhsjksskksisakaksksk concepts

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3 years ago

What is the main idea of the following poem? Fire and Ice by Robert Frost Some say the world will end in fire, Some say in ice.

Aleks04 [339]

I think you could choose either fire or ice.
fire = desire.

Selfishly wanting what you should not have is selfish desire. It is ruinous to think only of yourself. That's fire in this case.

hate is also very destructive. (I personally think that hate is the most dangerous of all possible character traits.) Hatred has emotional roots that cannot be easily overcome and certainly is not controlled by a tender heart. Intellect can be very guilty of hatred. That is why it is termed ice. Hatred can be quite cold governed by intellect.

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3 years ago

Read 2 more answers

Newton’s law of cooling states that for a cooling substance with initial temperature t0, the temperature t(t) after t minutes ca

antoniya [11.8K]

The cooling rate of the substance is approximately 0.0732.

According to the statement, the Newton's law of cooling is defined by the following formula:

$T(t) = T_{s} + (T_{o}-T_{s})\cdot e^{-k\cdot t}$ (1)

Where:

$T_{s}$ - Final temperature, in degrees Celsius.
$T_{o}$ - Initial temperature, in degrees Celsius.
$t$ - Time, in minutes.
$k$ - Cooling rate, in $\frac{1}{min}$ .
$T(t)$ - Current temperature, in degrees Celsius.

Please notice that substance reaches thermal equilibrium when $T(t) = T_{s}$ , that is when temperature of the substance is equal to the temperature of surrounding air.

If we know that $T_{o} = 80\,^{\circ}C$ , $t = 15\,min$ , $T_{s} = 50\,^{\circ}C$ and $T(15) = 60\,^{\circ}C$ , then the cooling rate of the substance is:

$60 = 50 + (80 - 50)\cdot e^{-15\cdot k}$

$\frac{60-50}{80-50}= e^{-15\cdot k}$

$\frac{1}{3} = e^{-15\cdot k}$

$k = -\frac{1}{15}\cdot \ln \frac{1}{3}$

$k \approx 0.0732$

The cooling rate of the substance is approximately 0.0732.

To learn more on Newton's law of cooling, we kindly invite to check this verified question: brainly.com/question/13748261

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2 years ago

PLS HURRY If, after you gather more details, you find that your prediction about the text is inaccurate, what should you do?

s344n2d4d5 [400]

Change your prediction & review the details you have now & make a new prediction

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3 years ago

Read 2 more answers

Why is it hard for trees to get water in the winter

nirvana33 [79]

I honestly haven't been in snow but I have of course been in winter.

It is hard for trees to get water in the winter because it hardly rains because the cloud are all covers with white and is cold so it is hard for the clouds to get rain in them and pour it out.

I hope this helped! :D

8 0

3 years ago