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Andreyy89
3 years ago
14

Help pwease im not good at meth​

Mathematics
1 answer:
professor190 [17]3 years ago
8 0

1 Simplify n+5+-m-3n+8n+5+−m−3n+8 to n+5-m-3n+8n+5−m−3n+8.

11-2m-(n+5-m-3n+8)11−2m−(n+5−m−3n+8)

2 Collect like terms.

11-2m-((n-3n)+(5+8)-m)11−2m−((n−3n)+(5+8)−m)

3 Simplify (n-3n)+(5+8)-m(n−3n)+(5+8)−m to -2n+13-m−2n+13−m.

11-2m-(-2n+13-m)11−2m−(−2n+13−m)

4 Remove parentheses.

11-2m+2n-13+m11−2m+2n−13+m

5 Collect like terms.

(11-13)+(-2m+m)+2n(11−13)+(−2m+m)+2n

6 Simplify.

-2-m+2n that is the answer plz Mark me brainliest:)

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For which values of P and Q does the following equation have infinitely many solutions ?
solmaris [256]

Answer:

(P, Q) = (-75, 57)

Step-by-step explanation:

The equation will have infinitely many solutions when it is a tautology.

Subtract the right side from the equation:

Px +57 -(-75x +Q) = 0

x(P+75) +(57 -Q) = 0

This will be a tautology (0=0) when ...

P+75 = 0

P = -75

and

57-Q = 0

57 = Q

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These values in the original equation make it ...

-75x +57 = -75x +57 . . . . . a tautology, always true

4 0
3 years ago
What is the value of the expression ? (243^2)^1/10<br><br> A.9<br><br> B.81<br><br> C.3<br><br> D.27
podryga [215]

(243^2)^{\tfrac 1{10}}\\\\=243^{\tfrac 2{10}}\\\\=243^{\tfrac 15}\\\\=(3^5)^{\tfrac 15}\\\\=3^{\tfrac 55}\\\\=3^1\\ \\=3\\\\\text{Hence the the answer is C.}

7 0
2 years ago
What 3+4+6 times 2<br> need to actually ask a question or these snitches will report
Neko [114]

Answer:

3+4+6*2=26

Step-by-step explanation:

hope this helps!

4 0
3 years ago
Y is such that 4y _ 7&lt;= 3y and 3y &lt;= 5y +8. What range of values of y satisfies both inequalities
fgiga [73]

Answer:

<h3>-4≤y≤7</h3>

Step-by-step explanation:

Given the inequality expressions

4y - 7 ≤ 3y and 3y≤5y+8

For 4y - 7 ≤ 3y

Collect like terms

4y - 3y ≤ 7

y ≤ 7

For  3y≤5y+8

Collect like terms

3y - 5y ≤ 8

-2y ≤ 8

y ≥ 8/-2

y ≥ -4

Combining both solutions

-4≤y≤7

<em>Hence the range of values of y that satisfies both inequalities is -4≤y≤7</em>

6 0
3 years ago
An old cell phone battery would last for 16 hours. The new battery lasts 25% longer. How long will the new battery last?​
Aliun [14]

Answer:

20 hours

Step-by-step explanation:

To find the answer, you first should find out how long is 25% of the original battery life, 16 hours. To find this, you can divide 16 by 4, or multiply 16 by 0.25. Either works.

16/4=4.

So the new battery lasts 4 hours more than the old battery. Then, add this to the original length to find how long the new battery will last in total.

16+4=20

7 0
2 years ago
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