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Anestetic [448]
3 years ago
7

What is the simplest form of 8m - 5n + 2m + 6n

Mathematics
1 answer:
Ivenika [448]3 years ago
6 0
8m - 5n + 2m + 6n =Simplifying 8m + -5n + 2m + 6n = 0 Reorder the terms: 8m + 2m + -5n + 6n = 0 Combine like terms: 8m + 2m = 10m 10m + -5n + 6n = 0 Combine like terms: -5n + 6n = 1n 10m + 1n = 0 Solving 10m + 1n = 0 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1n' to each side of the equation. 10m + 1n + -1n = 0 + -1n Combine like terms: 1n + -1n = 0 10m + 0 = 0 + -1n 10m = 0 + -1n Remove the zero: 10m = -1n Divide each side by '10'. m = -0.1n Simplifying m = -0.1n.
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What is the slope of the following line?
serg [7]
U use y=mx+b to find the slope, and the answer would be m=-3
8 0
2 years ago
How do I work out -5(-8)
slava [35]
You have to simplify like this (-5)(-8)=40
5 0
3 years ago
Read 2 more answers
In the △PQR, PQ = 39 in, PR = 17 in, and the altitude PN = 15 in. Find QR.
Licemer1 [7]

Answer:

So, this triangle PQR can be broken into two right triangles, PNQ and PNR, with legs PQ = 39, PN =15, and QN = ? and PR = 17, PN = 15, and NR =? respectively.


Let's solve for what is easier first:

Since we know that 5-15-17 is a Pythagorean triplet, we can infer that NR is 5....like I said earlier, it is a right triangle, so this guess holds true.


Here comes the interesting part:

Now, we have one part of QR, which is QN.

The other part can be solved by using the Pythagorean theorem.

It is (39^2-15^2)^(1/2)..which gives you 36, the square root of 1296, which happens to be the difference between the squares of 15 and 39.

SO, QR = QN + NR

5+36 = 41

QR = 41.

Hope this helps!

3 0
3 years ago
Read 2 more answers
the theatre charges $9 for each adult ticket and $6 for each child ticket. the theatre sold 144 tickets for the first showing of
Anna007 [38]
X=number of adult tickets
y=number of child tickets
I suggest this system of equations:
x+y=144
9x+6y=1164
we can solve this system of equations by substitution method.
x=144-y

9(144-y)+6y=1164
1296-9y+6y=1164
-3y=1164-1296
-3y=-132
y=-132/-3=44

x=144-y
x=144-44=100

Answer: the theatre sold 100 adult tickets and 44 child tickets.
3 0
3 years ago
3 to the power of 5 equals 243. Explain how to use that fact to quicky evaluate 3 to the power of 6.
wolverine [178]

Answer:

3^6 = 729

Step-by-step explanation:

3 to the power of 5 equals 243. Explain how to use that fact to quickly evaluate 3 to the power of 6  

Symbolically, we have:

3^5 = 243 (given)

Multiplying both sides by 3, we get:

3^6 = 3(243)

If you want to take this further, multiply 3(243):  3^6 = 729

6 0
3 years ago
Read 2 more answers
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