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4 years ago

The equation C (F 32) allows you to convert betweenCelsius and Fahrenheit temperatures. C is the temperature in degreesCelsius

(°C) and F is the temperature in degrees Fahrenheit (°F).
a) A U.S. weather station predicts that the overnight lowtemperature will reach 25°F. What is this in degrees Celsius?

b) Room temperature is approximately 20°C. What is this equivalentto in degrees Fahrenheit?

Mathematics

1 answer:

ahrayia [7]4 years ago

6 0

$*\\a) \\\frac{F^{\circ}-30}{2}=C^{\circ}
\\\\
\frac{25-30}{2}=-\frac{5}{2}=-2,5^{\circ}F\\\\
b)\\
2C^{\circ}+30=F^{\circ}\\\\
2*20+30=40+30=70^{\circ}C$

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NikAS [45]

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3 years ago

mrs jones attended a southern living Home party she purchased a vase which cost $34.99 The shipping charge was three dollars and

zhannawk [14.2K]

The total amount paid for vase is $ 41

<em><u>Solution:</u></em>

Given that

Cost of vase = $ 34.99

Shipping charge = 3 dollars

Sales tax = 8.25 % was paid on the subtotal which included the shipping charge

To find: total amount paid for vase

total amount paid for vase = Cost of vase + Shipping charge + sales tax

Let us first find the sales tax

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So 8.25 % of 37.99 was paid as sales tax

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Therefore sales tax amount paid = $ 3.1341

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4 years ago

Convert 1 cal/(m^2 * sec * °C) into BTU/(ft^2 * hr * °F)

Crazy boy [7]

Answer:

$1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}=0.03926\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

Step-by-step explanation:

To find : Convert $1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}$ into $\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

Solution :

We convert units one by one,

$1\text{ m}^2=10.7639\text{ ft}^2$

$1\text{ sec}=\frac{1}{3600}\text{ hour}$

$1\text{ cal}=0.003968\text{ BTU}$

Converting temperature unit,

$^\circ C\times \frac{9}{5}+32=^\circ F$

$1^\circ C\times \frac{9}{5}+32=33.8^\circ F$

So, $1^\circ C=33.8^\circ F$

Substitute all the values in the unit conversion,

$1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}=\frac{0.003968}{10.7639\times \frac{1}{3600}\times 33.8}\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

$1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}=\frac{0.003968}{0.101061}\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

$1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}=0.03926\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

Therefore, The conversion of unit is $1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}=0.03926\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

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weeeeeb [17]

Ok, first you have to just completely ignore the circles, they arent important.
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Step-by-step explanation:

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