3 years ago

Pls help I’m not the best at math

Mathematics

2 answers:

atroni [7]3 years ago

6 0

The answer is a trust on that

gladu [14]3 years ago

3 0

Answer:

Step-by-step explanation:

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Please help me with this please answer this correctly

sergij07 [2.7K]

30 and 13

x-y=17 and x+y=43

x=17+y and x=43-y, so 17+y=43-y

so y=13

43-13=30, so x=30 and y=13

8 0

2 years ago

What is the sum of the polynomials (-x^2+9)+(-3x^2-11x+4)

Marta_Voda [28]

You can just add the terms:

(-x^2+9)+(-3x^2-11x+4) = -4x² - 11x + 13

6 0

3 years ago

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the temper ire of chicken soup is 192.7 F as it cools the temperature of the soup decreases 2.3 what is the temperature of the s

ad-work [718]

The temperature of soup after 25 minutes is $135.2^{\circ}\ F$

Solution:

The temperature of chicken soup is 192.7°F

As it cools, the temperature of the soup decreases 2.3°F per minute

Let the initial temperature be $T_0$

Let "t" be the time for rate of decrease

Set up an equation

Temperature = Initial temperature - decrease in temperature

Decrease in temperature = rate of decrease x time

Therefore,

$T = T_0-2.3t$

To find the temperature of soup after 25 minutes, substitute t = 25

$T = 192.7 - 2.3 (25)\\\\T = 192.7 -57.5\\\\T = 135.2$

Thus the temperature of soup after 25 minutes is $135.2^{\circ}\ F$

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2 years ago

Christina biked 36 miles in 6 hours. If she biked at a constant speed, how many miles did she ride in one hour?

Ahat [919]

Answer:

Step-by-step explanation:

because you divided the amount of mile by the amount of time it took to get your answer

5 0

2 years ago

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The first person to answer correctly will get brainliest 5 stars AND a thank you!!!!

Travka [436]

Answer:

A translation

Step-by-step explanation:

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2 years ago