3 years ago

Consider the expressions (3m+2n−6) and (−4−6m+7n). What is the sum of the expressions for n = -2 and m = 5?

Mathematics

1 answer:

faltersainse [42]3 years ago

8 0

Answer:

the answer is 25m + 5n + 15

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there are 239 people in the first six rows of the movie theater if the same number of people are in the next six rows about how

bija089 [108]

Answer:

478 people

Step-by-step explanation:

All you need to do for this problem is simply multiply 239 by 2. If the first 6 rows are 239 people, and so are the next 6, that's all you need to do.

239*2=478

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3 years ago

About 13 out of 20 homes have a personal computer. On a street with 60 homes, how many would you expect to have a personal compu

Aleks04 [339]

This can be solved using a ratio. The ratio is: 13/20=x/60 this would then become 20x= 780 divide both sides by 20 and you get x=39. the answer is 39

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3 years ago

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(3x2)(−2x4) = 3(−2)x2∙4 = 6x8 can you find whats wrong with this problem

Rama09 [41]

Answer:

the equal sign

Step-by-step explanation:

7 0

2 years ago

Which is equal to (2x − 3y + 5z) − (−4x − y + 8z)?

Fittoniya [83]

(2x - 3y + 5z) - (-4x - y + 8z)
= 2x - 3y + 5z + 4x + y - 8z
= 6x - 2y - 3z

In short, Your Answer would be Option D

Hope this helps!

8 0

3 years ago

Ax+by+c=0 solve for y

kvv77 [185]

$Answer: \large\boxed{y=\frac{-ax}{b} -\frac{c}{b}}$

Step-by-step explanation:

$ax+by+c=0\\ax+by=-c\\by=-ax-c\\y=\frac{-ax-c}{b}\\y=\frac{-ax}{b} -\frac{c}{b}$

8 0

2 years ago