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anastassius [24]
2 years ago
7

Im giving out brainlys to whoever answers ty!

Mathematics
2 answers:
Colt1911 [192]2 years ago
8 0

Answer:

77°F

Step-by-step explanation:

You are given 25° as the temperature in celsius, so first replace the C in the equation with 25. You should get:

\frac{9}{5}(25) + 32

Next, multiply 9/5 (or 1.8, they're the same thing) with 25. You should get 45.

Lastly, add 32 to 45. The sum is 77.

You're finished simplifying the equation, so the answer is 77°F.

Hope this helps!

Katarina [22]2 years ago
4 0

Answer:

77°F

Step-by-step explanation:

Just plug in 25 into the C variable and you get your answer.

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Square root of -1 = 1. Math test
pantera1 [17]

Answer:

false. the sqrt of -1 = i

Step-by-step explanation:

6 0
3 years ago
If the product of two number is 10 and the sum is 7 ,then the longest of the two number is​
irinina [24]

Answer:

5 units

Step-by-step explanation:

Step one:

Given data

Le the first number be x

and the second number be y

So

x*y= 10-----------------1

and

x+y= 7-----------------2

from eqn 1

x= 10/y

put x= 10/y in eqn 2

10/y+y= 7\\\\10/y= 7-y

cross multiply we have

10=y(7-y)\\\\10=7y-y^2

rearrange

y^2-7y+10=0

the factors of the quadratic expression are

-5 and -2

y^2-5y-2y+10= 0\\\\y(y-5)-2(y-5) =0\\\\y-2=0\\\\y= 2\\\\y-5= 0\\\\y=5\\\\

The longest side is 5 units

3 0
3 years ago
A​ student's course grade is based on one midterm that counts as 20​% of his final​ grade, one class project that counts as 5​%
Ludmilka [50]

Answer:

  • 78
  • C

Step-by-step explanation:

The weighted average of the student's scores is ...

  0.20×63 +0.05×97 +0.35×85 +0.40×77 = 78

The student's overall final score is 78.

__

The letter grade earned is between 70 and 80, so is a C.

4 0
3 years ago
The distance between the cities Atlanta and Indianapolis is 540 miles. A motorcycle's speed is 48 mph. For a car it takes 2.25 h
WITCHER [35]

Answer:

It will take them 5 hours to meet if they start moving towards eachother simultaneusly.

Step-by-step explanation:

Distance, s = 540 miles

Motocycle's speed, v = 48 mph

Time for motorcycle to cover 48 miles, t = \frac{Distance}{Speed}

=  \frac{540}{48} = 11.25 h

For a car it takes 2.25 hours less than 11.25 for motorcycle:

Time for car than becomes: 11.25 - 2.25  = 9 h

Speed for car would be v(c) = \frac{Distance}{Time}

= \frac{540}{9} = 60 mph

<em>For finding when they will meet, we will need relative speed: </em>

Since they are moving towards each other the relative speed is the sum of speed of car and the speed of motorcycle

Relative Speed = 48 + 60 = 108 mph

Distance = 540 miles

Time =  \frac{Distance}{Speed}

        =  \frac{540}{108}

       = 5 hours





6 0
3 years ago
Mark owes his sister $15. He earned $24 for mowing the grass. He gave 1/6 of his earnings to a local charity and then paid his s
Effectus [21]

Answer:

$5

Step-by-step explanation:

(5/6)*24=20

20-15=5

8 0
3 years ago
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