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RoseWind [281]
3 years ago
10

How to expand and simplify 5(3p+2)-2(5p-3)

Mathematics
2 answers:
koban [17]3 years ago
7 0
5(3p+2) -2(5p-3) \\ \\ 15p + 10 - 10p + 6 \\ \\ (15p - 10p) + 10 + 6 \\ \\ 5p + 10 + 6 \\ \\ 5p + 16 \\ \\ Answer: \fbox {5p + 16}
Luda [366]3 years ago
5 0
5(3p+2) - 2(5p-3)     Distribute the 5 and the 2
(5*3p) + (5*10) + (-2*5p) + (-2*-3)
15p + 50 - 10p + 6      Combine like terms
5p + 56
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Towns X, Y, and Z are on the same straight road. Town Y is between Town X and Town Z. Town X is 57 miles from Town Z, and Town Y
Ray Of Light [21]
The distance between town X and Town Y is equal to the difference between the distance between Town X and Town Z and the distance from Town Y and Town Z. Mathematically
                      d (X-Y) = d (X-Z) - d(Y-Z)
Substituting,
                      d(X-Y) = 57 miles - 28 miles = 29 miles
Thus, the distance from Town X to Town Y is 29 miles. 
6 0
3 years ago
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HELPPPP!!!PLEASE!!!!!
lbvjy [14]

Answer:

x=40

Step-by-step explanation:

Both angles are equal. So the equation needs to equal 156.

Just plug in points for x until the answer is 156.

In this case, when we plug in 40, it works!

(3*40)+36=156

3 0
2 years ago
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Helpppppp meeeeeee plz ​
V125BC [204]

60 total fourth graders and 43 are girls. To find the number of boys, subtract.

60 - 43 = 17 boys

If 5 girls were absent, subtract.

43 - 5 = 38 girls present

If 4 boys were absent, subtract.

17 - 4 = 13 boys present

Therefore, there were 13 boys present.

Best of Luck!

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3 years ago
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What is the relationship between the variance and standard deviation? variance is the positive square root of the standard devia
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Variance of a continuous random variable X is defined as

\int\limits_D {(x-\mu)^2f(x)} \, dx

Standard deviation is defined as

\sigma =  \sqrt{Var(X)}

Hence standard deviation is the positive square root of variance.

6 0
3 years ago
60% of Herbert's movies are adventure movies. He has 18 adventure movies. How many movies does Herbert have in all?
Vera_Pavlovna [14]
Data:
x (Number of movies) = ?


\frac{60}{100} *x = 18
0,6x = 18
x =  \frac{18}{0,6}
\boxed{x = 30}

Answer:
<span>Herbert have in all ?
30 movies</span>
5 0
3 years ago
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