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Marianna [84]
3 years ago
7

The expression 9/5C + 32, where C stands for the temperature in degrees Celsius, is used to convert Celsius to Fahrenheit. If th

e temperature is 20 degrees Celsius, find the temperature in degrees Fahrenheit
Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
3 0
<span>9/5C + 32 =

= 9/5 * 20 + 32

= 36 + 32

= 68

20 C = 68 F
</span>
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Ose has 50 coins in a jar. 20% are nickels, 40% are quarters, and the rest are pennies. (6.RP.3c-Benchmark #3)
cupoosta [38]

Answer:

Part A: 40% are pennies

Part B: NIckels 10, Quarters 20, Pennis 20

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3 years ago
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1. The numbers ______ and _____ are respectively the additive and multiplicative identities of rational numbers
miss Akunina [59]

Answer:  0 and 1, in that order

The numbers <u>   0   </u> and <u>   1   </u> are respectively the additive and multiplicative identities of rational numbers.

===========================================================

Explanation:

The additive identity is 0 because adding 0 to any number leads to the original number. For instance, 7+0 = 7. In general we can say x+0 = x or we could also say 0+x = x.

The multiplicative identity is 1 because multiplying 1 with anything leads to that original number. Example: 1*5 = 5 or 9*1 = 1. The general template is x*1 = x which is the same as saying 1*x = x.

These ideas not only apply to rational numbers, but to real numbers as well.

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2 years ago
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denis-greek [22]
X is greater than 4
3 0
3 years ago
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Please help me thanks
BabaBlast [244]

Answer:

16.7

Step-by-step explanation:

We can use the Pythagorean theorem, a^2 + b^2 = c^2.

a = 11

c = 20

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3 years ago
A cargo plane flew from the US across the Atlantic at 212 mph, and flew back to the US at 232 mph. Given that the first trip too
expeople1 [14]

The return trip was 21.2 hours long.

Step-by-step explanation:

Given,

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Let,

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We know that;

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Distance of plane from US = 212(x+2) = 212x+424

Distance on return trip = 232x

As the distance will be same, therefore,

232x=212x+424\\232x-212x=424\\20x=424

Dividing both sides by 20

\frac{20x}{20}=\frac{424}{20}\\x=12.2\ hours

The return trip was 21.2 hours long.

Keywords: distance, speed

Learn more about speed at:

  • brainly.com/question/12960754
  • brainly.com/question/12967961

#LearnwithBrainly

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3 years ago
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