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lys-0071 [83]
3 years ago
5

What is 4 (m + n) -5 (m - n) ?

Mathematics
1 answer:
Galina-37 [17]3 years ago
5 0

Answer:

Step-by-step explanation:

for this situation we do distributive property{in distributive property [in this situation ] we will (multiply 4 by m & n) - (multiply 5 by m & n)=

4m + 4n - 5m - 5n =

(4m -5m) - (4n - 5n) =

-1m - (- 1n) =

-1m + 1n

and always remember to go in alphabetical order = m comes before n, x comes before y or z.

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Samir ran for 10 minutes, stopped and stretched for 5 minutes, walked for 20 minutes, and ran for another 15 minutes. Which part
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Answer:

C. Samir stopped and stretched for 5 minutes.

Step-by-step explanation:

We are given that,

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As, we can see that for the parts where Samir is walking or running, he is not in a constant or still state i.e. his position is changing.

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If x^2 -8x=48 and x<0, what is the value of x+10?
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Answer:

6

Step-by-step explanation:

To calculate <em>x+10</em>, we first need to find <em>x</em>. To do this, we can use the first equation.

We are given the equation:

x^2-8x=48

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