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zavuch27 [327]
3 years ago
8

On a hot summer day, Jen is in a foreign country. She wonders which

Mathematics
1 answer:
tino4ka555 [31]3 years ago
8 0

Answer: Celsius scale

Step-by-step explanation:

Fahrenheit scale is established from the freezing and boiling temperatures of water, which are:

Freezing temperature of water: 32\°F

Boiling temperature of water: 212\°F

Which means that all temperatures below 32\°F  are below the freezing temperature of water. Therefore, if Jen is in the Summer season, which is characterized by high temperatures, it is incoherent to think that the thermometer is using the Farenheit scale.

Now, 30\°C is in accordance with the high temperatures recorded in the summer season.

If we want to know how much 30\°C is in Farenheits, we must use the following conversion formula:

(30\°C)(\frac{9}{5})+32=86\°F

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scoundrel [369]
The one you have highlighted is correct
7 0
3 years ago
Y = 3 - 5x <br><br><br> solve for x
boyakko [2]

Answer:

x = -1/5y + 3/5

Step-by-step explanation:

y = 3 - 5x

Subtract 3 from both sides;

y - 3 = -5x

Divide both sides by -5

-1/5y + 3/5 = x

4 0
3 years ago
Kianna and three friends went out to dinner together. The total bill was $58.49. If they each agreed to pay an equal share of th
jonny [76]
Answer:  $15.00 per person.
______________________________
Explanation:
______________________________
 Given that there are "4 people" (that is, "Kianna and three friends");
____________________________________________________
and a total of "$58.49" ; to be divided equally among 4 (four) people;
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 we are asked to <em><u>estimate</u></em> the amount that EACH person will pay.
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For an <em><u>ESTIMATE</u></em>,  $58.49 is ABOUT $60.00; or "60 dollars". ;

and (60 dollars) / 4 = 15 dollars {$15; or $15.00}. 

60/4 = 15;  or 60/4 = (60÷2)/(4÷2) = 30/2 = 15.
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3 0
3 years ago
A ball drops from the top of a tower. At the same time a rocket is launched from a different level of the tower.
ExtremeBDS [4]

Answer:a

Step-by-step explanation:

5 0
3 years ago
Quick question if I had a problem that was sin x = 18.9/20 =.945 how would I inverse sin of both sides ?
galben [10]

Answer:

The result is about 70.9 degrees

Step-by-step explanation:

Easy for a calculator.  If you're not using a calculator, it's much more tedious!

There is an inverse sine key on your calculator, but you may have to press a key (likely labeled 2nd or INV) first.  The attached image shows a TI-83 display.  To get the inverse sine, I first pressed the yellow 2nd key, then the sin key.

Check MODE first to make sure you're measuring angles in degrees (if that's what you want!).  Some calculators display angle mode with a small letter at the top of the display, D, R, or G usually.

The left side of the equation produces just x.

\sin{x}=.945\\\\\sin^{-1}(\sin{x})=\sin^{-1}(.945)\\x=\sin^{-1}(.945) \approx 70.9^\circ

6 0
2 years ago
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