3 years ago

2m - 9n - 6m + 3n - n

1 answer:

3 0

= 2m - 9n - 6m + 3n - n
combine like terms (m with m terms and n with n terms)

= (2m - 6m) + (-9n + 3n - n)
add/subtract in parentheses

= -4m - 7n

ANSWER: -4m - 7n is the simplified expression

Hope this helps! :)

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A container contains water at temperature 80 degree celcius. After every 10 minutes, the change in temperature is - 4 degree cel

lilavasa [31]

For this case, the first thing we must do is define variables.
We have then:
x: number of minutes
y: final temperature
We write then the equation that models the problem:
$y = (-4/10) x + 80
$
For y = 20 we have:
$20 = (-4/10) x + 80
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Clearing x:
$(4/10) x = 80 - 20

x = (10/4) * 60

x = 150$
Answer:
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4 years ago

Given ΔMNO, find the measure of ∠LMN.

Novay_Z [31]

Answer:

104°

Step-by-step explanation:

If segments NO and NM are congruent, then angles NMO and NOM are congruent. So, their supplements, angles NML and NOP are congruent. That is ...

∠NML ≅ ∠NOP = 104°

∠NML = 104°

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3 years ago